Tutorials
Base is a Isuzu 4JB1 second hand truck diesel engine. This engine was converted with our marinisation kit “Nicki” into a marine engine.
This engine develops at 2300 rpm about 55 hp.
This propulsion unit was installed in a 25 foot inshore fishing boat in Malaysia and drives a hand steered Levi Drive LD 170-150.
A maximum test speed of 27,7 Knots was obtained.The fuel savings with surface propulsion and diesel engines compared with an outboard engmake every boat owner glad..
Hull Design and Building Considerations
Simplicity Marine Drives can be used on a wide variety of vessel types. The best results will be achieved when the surface piercing technology are considered when retrofitting or designing the boat. Simplicity Marine Products, Inc. representatives are always willing to assist with design and installation advice. We recommend you consult with us before finalizing your hull design and propulsion system.
The following discussions are offered to assist the designer and builder to achieve optimum performance and reliability from Simplicity Marine Drives.
Preparing Information for Calculations
When gathering information about the boat to have a drive installed on, be realistic with weight and center of gravity estimates. Nearly all boats weigh more than the designer and builder would like them to weigh, and this is by far the single most common cause of failure to meet anticipated sea trial speeds. Simplicity Marine Drives will be delighted to calculate vessel performance, recommend a gear ratio and propeller size for you, but we need accurate data.
THE TRANSOM
Because Simplicity Marine Drives are simi-custom it allows us the ability to fit any transom from 0-16 degree and retrofit to existing sterndrives. The SMD drive will cover the old hole left by most brands of sterndrives, eliminating costly modifications. Our drive housing does many things, the top is a swim platform, the under side provides a unique wedge that directs the reversing water flow down and under the hull thus giving
excellent reverse thrust and control, it also supports the rudder, shaft strut. Inside you find the exhaust system and steering cylinder.
Clean Water Flow to the Propeller The less disturbed the flow of water to the propeller, the better the surface piercing propeller will perform. It is important to ensure that there are no through-hull fittings such as engine cooling intakes, transducers, keels and skegs directly ahead of the propeller. There should be a minimum of 4 feet of smooth hull in front of each propeller.
Trim tabs and transom mounted transducers or water pickups must not be installed directly ahead of the propeller. If needed, these should be mounted to the sides, out of the water flow to the propeller.
Propeller Trim Trimming the Simplicity Marine Drive for varying loads is not required. Other surface drives have added drive complexity to adjust their vertical trim in order to help the propeller perform under certain conditions. With Simplicity Marine Drives design, these conditions do not impact the operation of the propellers.
Surface drives are designed to operate close to the surface of the water. When at low speeds the propeller is fully submerged and because surface drives use larger diameter propellers they have very high thrust at low speeds. As the boat increase speed the water pulls away from the transom and the top of the propeller is exposed to the air, this is called ventilating the propeller. The engine exhaust is also used to help ventilate the propeller. It is discharged on top forward of the propeller.
Also, a vent tube is added on some applications were a low torque engine or an engine with slow to develop turbo boost. The added air tube allows the RPM to increase faster when the propeller is fully submerged, which makes the boat increase speed and comes onto plane faster. When the boat is on full plan the propeller operates at between 50%-60% submergation.
To insure proper propeller submergence the drive unit must be properly submerged at rest. The boat should have a draft depth to submerge the propeller and drive housing so that the bottom of the drive housing is under water by several inches. This is very necessary to insure proper control in reverse. Depending on the model we recommend a hull draft at the transom at rest of a minimum of 14” for the SMD 100-400 and 16”-18” for all the Horseshoe Rudder Models.
With some other drives systems they use vertical trim cylinders and pumps to raise the propeller closer to the surface in order to ventilate it. As the boat speed increases, the propeller is lowered to the normal operating position. This is done were the transmission ratio and propeller size are not matched to the boats size and weight correctly.
Some people believe the trimmable propeller will help trim the boat by compensating for poor balance or weight distribution. The effect of a surface drive propeller on planning boat trim is insignificant.
Using a trimmable surface drive to optimize boat speed may be applicable in high-speed race boats where every tenth of a knot counts. However, it has negligible effect on most boats.
With the installation of the Simplicity Marine Drive relative to the planning waterline, optimum performance is achieved without the complexity and maintenance of additional controls, hydraulic systems, exposed hydraulic cylinders, and complex mechanical drive shafts. The simple trailing rudder on the Simplicity Marine Drives provide excellent maneuverability without wandering at low speeds like most sterndrives and articulating surface drives.
Engine and Gearbox Selection
To achieve the best results from Simplicity Marine Drives; the drives should be matched to engine rpm and transmission gear ratios. All marinized gasoline and diesel engines can be used with Simplicity Drives. Simplicity uses surface piercing propellers that have been designed to take advantage of high torque to achieve efficient low speed operation as well as load carrying and maximum operating/cruise speeds.
When engines with higher than 3500 rpm at full throttle are used, increased gearbox reduction ratios may be required to produce the required torque at the propeller.
Gasoline engines are higher revving and may require deeper reduction ratios when used on larger heavier boats.
Engine selection is always the responsibility of the designer, builder or owner.
Engine Exhaust All Simplicity Marine Drives are supplied with internal exhaust systems to which the engine exhaust is connected. The exhaust gases inter the drive at the transom and exit the drive just forward and above the propeller outside the boat. The exhaust gases help ventilate the propeller when the boat is accelerating to get on plan. This feature eliminates the need for a separate thru-hull exhaust in the transom.
Marine Gearbox To ensure the best results Simplicity should be consulted to specify the ideal reduction ratio; performance may be compromised if the reduction ratio is not optimum for the propeller type, selected power, and hull configuration.
The Simplicity Drives shaft angle is at (6-8) degrees on most models and should be considered when selecting a gearbox. Most modern gearbox’s can provide both clockwise and counter-clockwise propeller rotations with the same gear.
Final selection of the gearbox is the responsibility of the owner/designer/builder.
Propeller
Surface propellers are usually associated with the stainless steel "cleaver" style common to race boat applications. These propellers have straight trailing edges, razor-sharp leading edges, and sometimes as many as eight blades. Probably because the roots of surface propulsion technology are so firmly imbedded in the race boat world, its no surprise that the popular perception is that all surface propellers are cleavers. Yet the vast majority of surface propellers being sold today have round-tipped blades, are
made of bronze or Nibral, and have only three or four blades. In fact, at first glance there is very little to distinguish them from conventional, fully submerged props.
What distinguishes a surface propeller from an underwater design? The pressure face of the blade is always concave, the leading edge is relatively sharp with a narrow entry angle and the hub and blade root are built to with stand heavy eccentric and alternating loads.
There is major incentive to keep the blade section thin (it's the strength of the steel blades that really gives cleavers the edge at high speeds and loading). Nearly all-successful designs have moderate to heavy trailing edge cupping.
Propeller selection begins with an estimate of required thrust at the design speed. This is usually based on one of several computational methods, but can also be generated from empirical formulas or, if available, trial data from nearly similar vessels. Then a preliminary gear ratio and diameter is chosen, adjusting both until slip and pitch/diameter ratio is optimal and the required thrust is generated. This will generally result in a non-standard reduction ratio, so the remainder of the process involves adjusting diameter and pitch to fit the available drive train hardware. This is, of course, a somewhat simplified description of a "design spiral."
Usually the initial design conditions will be modified in the course of the analysis, and there are numerous other considerations such as number of blades, propeller submergence, drive train structural limitations, and vessel trim.
Note that unlike propeller selection for a large proportion of conventional applications, diameter remains a variable parameter throughout the entire process.
Simplicity Marine Drives will be eager to perform these calculations for you, and in some cases can supply you with loaner propellers for testing.
Unele dintre statisticile de mai jos vi se vor parea amuzante in timp ce altele sunt cat se poate de serioase. Absolut toate sunt menite, insa, sa ne arate cat de putine lucruri cunoastem despre lumea care ne inconjoara .
1. Furnicile nu dorm niciodata. Cu toate acestea, in zorii zilei, furnicile se intind asemenea oamenilor pentru a se dezmorti.
2. Aproximativ 90% din populatia intregii planete locuieste in emisfera nordica.
3 Cimpanzeii si cotofenele sunt singurele animale care isi pot recunoaste imaginea intr-o oglinda.
4. Barajul Hoover din SUA a fost proiectat ca sa reziste pentru cel putin 2.000 de ani. Cimentul folosit la ridicarea impresionantei constructii nu se va intari complet decat peste 500 de ani.
5. In ciuda aparentelor, doua treimi din suprafata intregului continent african se afla in emisfera nordica.
6. Daca tii un caras auriu intr-o incapere lipsita de lumina, acesta va deveni, in cele din urma, alb.
7. Irlanda este singura tara europeana in care nu exista serpi.
8. In provincia Alberta din Canada au fost ucisi absolut toti soarecii. In prezent, este singura provincie din lume in care nu exista asemenea rozatoare.
9. Ochiul unui strut este mai mare decat creierul acestei pasari.
10. Pentru fiecare om de pe Terra exista circa 200 de milioane de insecte. Numai termitele ne depasesc intr-un raport de 10 la 1.
11. Balena albastra este animalul care produce cele mai puternice sunete (pana la 188 de decibeli). Un astfel de sunet poate fi receptat prin apa la o distanta de pana la 850 de kilometri.
12. Te-ai gandit cata benzina ti-ar trebui ca sa poti inconjura planeta cu propriul automobil? Ei bine, in rezervorul unui avion Boeing poate incapea suficient combustibil incat sa poti face acest lucru de patru ori.
13. Stiti care sunt cei mai mari consumatori de Coca-Cola din lume? Daca ati raspuns islandezii, ati dat raspunsul corect...
14. Stiti care este apetitul unui furnicar sud-american? Ei bine, acesta poate ingera pana la 30.000 de furnici... pe zi.
15. Cei mai tineri parinti din istorie ( doi copii cu varste de 8, respectiv 9 ani) au trait in China . Copilul lor s-a nascut in anul 1910.
16. Vreti sa stiti care este regiunea cu cea mai scazuta criminalitate? Incercati Quebec , Canada . Rata criminalitatii in aceasta zona este similara cu cea inregistrata intr-un parc Disney World, aproape 0.
17. Se estimeaza ca in lume exista circa 1 miliard de vite. 200 de milioane dintre ele traiesc numai in India , acolo unde sunt considerate animale sfinte.
18. In urma cu 5 ani, 60% dintre cumparatorii din supermarketurile lumii plateau cu bani gheata. Astazi, procentul este de doar 50%. Se estimeaza ca in anul 2011, doar 39% dintre cumparatori vor mai plati cu bani gheata in detrimentul cardurilor.
19. Pe suprafata unui corp uman traiesc mai multe vietati decat oameni pe intreaga planeta.
20. Bufnitele sunt singurele pasari care pot distinge culoarea albastra.
21. Mamiferele sunt singurele specii vii care prezinta lobi ai urechilor.
22. Prefixul telefonic pentru Antarctica este 672.
23. Desi nu pare, Chicago este mult mai aproape de Moscova decat este de Rio de Janeiro .
24. Lungimea unui elefant este egala, aproximativ, cu lungimea limbii unei balene albastre. De asemenea, limba unei balene este mai grea decat un elefant adult.
25. Limba unui crocodil este imobila. Ea este atasata de cerul gurii acestui animal.
26. Un om uita, in medie, circa 80% din tot ceea ce a invatat intr-o zi.
27. Durata care ii ia unui fulg de zapada ca sa ajunga de la nori pana pe suprafata pamantului? Cel putin o ora...
28. Cei mai mari iubitori ai carnii de porc sunt danezii. In Danemarca exista de doua ori mai multi porci decat intreaga populatie umana a acestei tari.
29. Girafa este singurul animal care isi poate introduce limba in ureche. Limba unei girafe adulte masoara peste 50 de centimetri.
30. Biblioteca Universitatii din Indiana , SUA, se scufunda in fiecare an cu circa 2,5 centimetri. Acest fenomen se datoreaza unei erori a constructorilor care au omis sa calculeze si greutatea cartilor care vor fi depozitate in uriasa cladire.
31. Cele mai numeroase vietati de pe Terra sunt artropodele. Ca un exemplu, pana in prezent au fost descoperite circa 70.000 de mii de specii... de paianjeni.
32. De peste 4.000 de ani, nicio specie animala nu a mai fost domesticita.
33. In prezent, pentru prima data in istoria planetei, numarul persoanelor cu varste de peste 60 de ani il depaseste pe cel al copiilor cu varsta sub 5 ani.
34. Credeti ca Romania este o tara saraca? Ganditi-va ca una din cinci persoane de pe Terra traieste cu mai putin de 1$ pe zi.
35. In Santa Fe, New Mexico, legea impune ca animalele de casa sa poarte centura de siguranta in masina.
36. O singura vaca poate produce intr-un an mai mult lapte decat poate consuma un singur om... circa 200.000 de pahare pline cu lapte.
37. Plajele de nudisti pot fi periculoase pentru navele care circula in apropierea lor. Recent, un iaht cu 60 de persoane la bord s-a rasturnat pe tarmul texan al Golfului Mexic dupa ce toti pasagerii s-au ingramadit pe aceeasi parte a navei pentru a vedea nudistii de pe o plaja din apropiere.
38. Stiti cate emailuri se trimit zilnic in toata lumea? Peste 35 de miliarde...
39. Pentru fiecare tona de peste prinsa in oceanele lumii, oamenii arunca trei tone de gunoi in aceleasi ape.
40. Cea mai mare caracatita descoperita vreodata cantarea 4 tone. A fost vanata in anul 1878, in nordul Oceanului Atlantic.
41. Cea mai mare meduza observata vreodata avea un diametru de 2,3 metri. Tentaculele sale se intindeau pana la 36 de metri.
42. In statul american, Dakota de Nord, nu s-a inregistrat niciodata un cutremur.
43. Hawaii se apropie de Japonia cu aproximativ 10 centimetri in fiecare an.
44. Rechinii sunt singurele animale despre care se stie ca nu se pot imbolnavi de cancer.
45. La Paz , Bolivia , este orasul cel mai sigur din punct de vedere al prevenirii incendiilor. Data fiind altitudinea ridicata la care se afla (peste 3.000 de metri), cantitatea de oxigen din aer de abia poate sustine un foc.
46. Tot in La Paz , temperatura medie este de doar 10 grade Celsius. Si cu toate acestea, niciodata nu s-a inregistrat o temperatura de 0 grade. Situatia este identica si in Punta Arenas , Chile sau Stanley , Insulele Falkland .
47. Absolut toti crevetii se nasc masculi. Unii dintre ei devin femele la maturitate.
48. Daca vreti sa fiti in siguranta in fata unor nisipuri miscatoare, intotdeauna sa calariti un catar. Daca magarii sau caii se scufunda in nisipurile miscatoare, un catar nu o va face niciodata.
49. Chiar si astazi, 90% din teritoriul Statelor Unite ale Americii este format din terenuri neamenajate sau ferme.
50 Numai marea piramida a lui Keops contine suficienta piatra incat sa poate fi construit un zid inalt de 50 de centimetri care sa inconjoare planeta la Ecuator.
51. Cel mai mare sarpe veninos din lume este Cobra Regala. Aceasta poate atinge lungimi de pana la 5,5 metri.
52. O gaina poate depune, in medie, pana la 19 oua pe an.
53. Cel mai mare restaurant McDonalds se afla in... Beijing, China . Acesta se intinde pe o suprafata de 2,6 kilometri patrati si are nu mai putin de 29 de case de marcat.
54. Vreti sa stiti in ce tara se acorda cele mai lungi concedii? Ei bine, in Franta statul asigura angajatilor 5 saptamani de concediu pe an. Cei mai multi francezi primesc, insa, doua luni de concediu anual.
55. Un cal adult poate consuma intr-un an o cantitate de hrana ce depaseste de 7 ori propria sa greutate.
56. Stiti care sunt cei mai mari consumatori de fast-food de pe planeta? Raspunsul corect este... chinezii. 41% dintre chinezi mananca, cel putin o data pe saptamana la un restaurant fast-food. Doar 35% dintre americani fac acest lucru.
57. In randul elefantilor africani, atat masculii, cat si femelele, poseda fildesi, in vreme ce la elefantii asiatici doar masculii se pot lauda cu fildesi.
58. Exista mai multi oameni care invata limba engleza in China decat cei care o vorbesc oficial in Statele Unite (peste 300 de milioane).
59. Oasele membrelor inferioare ale unui liliac sunt atat de subtiri incat niciun liliac nu se poate folosi doar de ele pentru a se deplasa.
60 Cea mai spectaculoasa evolutie a preturilor pe piata imobiliara s-a inregistrat in Irak. Daca inaintea razboiului o casa din Bagdad nu se vindea cu mai mult de 15.000 de dolari, astazi pretul a urcat pana la 150.000 de dolari.
61. Numai in SUA exista aproximativ 7.000 de tigri tinuti ca animale de casa.
62. In anul 2004, un studiu arata ca una din sase fetite intra in perioada de pubertate la varsta de 8 ani. In urma cu un secol, doar o fetita din 100 atingea pubertatea la aceeasi varsta.
63. Pana in prezent, Congresul american a alocat o suma de 152.600.000.000 de dolari pentru razboiul din Irak. Suma ar fi fost suficienta pentru a ridica 17.500 de scoli.
64 Media zilnica a produselor care sunt oferite spre vanzare pe Ebay este de 18 milioane.
65. Doar 5% din suprafata acoperita de oceane pe Terra a fost cartografiata atat de detaliat pe cat a fost suprafata planetei Marte.
66. Va ganditi sa jucati la loterie? Atunci ar trebui sa stiti ca exista mult mai multe sanse sa muriti in drum spre o reprezentanta a loteriei decat sa castigati marele premiu la oricare dintre loteriile lumii.
67. Adezivul de pe timbrele din Israel a fost tratat astfel incat sa fie considerat "kusher".
68. Daca vorbiti la telefonul mobil timp de o ora, numarul bacteriilor din urechea voastra va creste de cel putin 700 de ori.
69. Anvergura aripilor unui Boeing 747 este mai mare decat distanta parcursa de fratii Wright in primul lor zbor.
70. Circa 12 copii sunt oferiti zilnic, in maternitati, altor mame decat cele naturale. Aceasta statistica include toate tarile lumii.
71. O femela de dihor poate muri daca, odata intrata in calduri, nu isi va gasi un partener mascul.
72. Absolut toti copiii se nasc fara rotule. Ele se formeaza complet in intervalul de varsta de 2-6 ani.
73. O persoana are in medie 1.460 de vise in fiecare an.
74. Un om, consuma, in medie, de-a lungul vietii, o cantitate de hrana egala cu greutatea a sase elefanti maturi.
75. In spatiu, astronautii nu pot plange. In lipsa gravitatiei, lacrimile nu pot curge (nici flatulenta nu este posibila in stare de imponderabilitate).
76. Aproximativ 6.000 de fulgere lovesc Pamantul in fiecare minut.
77. In Bangladesh exista o lege care permite autoritatilor sa aresteze elevii cu varste mai mari de 15 ani care copiaza la examene.
78. Cel mai intalnit nume barbatesc de pe planeta este Mohammed.
79. Pana in anul 1796, in SUA a existat un stat pe nume Franklin . Astazi, el este cunoscut sub numele de Tennessee .
80. Ati considerat vreodata ca proiectul romanesc "laptele si cornul" are prea multe hibe? Intr-o scoala din Virginia , SUA, elevii cu varste intre 7 si 10 ani au fost serviti, in cadrul unui proiect asemanator, cu cockteiluri margaritas. In urma scandalului de proportii care s-a iscat, a reiesit ca distribuitorii produselor confundasera limonada cu celebrele cockteiluri.
81. In Anglia este interzis prin lege ca vanzatoarele din magazine sa isi serveasca topless clientii. Exceptie fac doar magazinele de pesti exotici din Liverpool .
82. Doar o singura persoana din 2 miliarde va atinge varsta de 116 ani.
83. Februarie 1865 este singura luna din istorie in care nu a fost inregistrata luna plina.
84. In fiecare an, mai multi oameni sunt ucisi de magari decat in accidente aviatice.
85. Numele original al Bancii Americii a fost Banca Italiei.
86. Cea mai mare piata de desfacere pentru limuzinele BMW 760Li este China . Pretul unei astfel de masini poate urca pana la 200.000 de dolari, mai mult decat castiga majoritatea cetatenilor chinezi intr-o viata.
87. In fiecare an, 60 de milioane de litri de petrol si ulei sunt deversate in rauri si fluvii pana in oceane. Cantitatea o depaseseste pe cea pierduta de petrolierul Exxon Valdez in anul 1989 (unul dintre cele mai mari dezastre ecologice din istorie). Statistica se refera numai la Statele Unite ale Americii.
88. Michael Jordan, celebrul baschetbalist american, castiga anual din reclamele pentru compania Nike mai mult decat toti muncitorii din fabricile Nike, luati la un loc, din Malaezia.
89. Cele mai mari nave transoceanice platesc cate 250.000 de dolari de fiecare data cand strabat Canalul Panama . Trebuie spus ca o treime din economia acestui stat este sustinuta de acest canal.
90. Un singur avion Boeing 767 este format din nu mai putin de 3.100.000 de piese diferite.
91. Durerea are si ea o unitate de masura. Aceasta se numeste "dol" iar instrumentul menit sa masoare durerea se numeste dolorimetru.
92. Se estimeaza ca in Rusia exista mai multe bancnote de 100 de dolari decat pe teritoriul Statelor Unite ale Americii.
93. V-ati intrebat ce a fost mai intai, oul sau gaina? Biblia a raspuns deja la aceasta intrebare. Conform Genezei 1:20-22, gaina a aparut inaintea oului.
94. In absolut toate tarile lumii, indiferent de cultura, religie sau zona geografica, soldatii executa salutul numai cu mana dreapta.
95. Intr-un studiu cu privire la relatiile interfamiliale, 80% dintre barbatii casatoriti au declarat ca si-ar lega destinele de aceeasi femeie daca ar putea da timpul inapoi. Doar 50% dintre femei au declarat acelasi lucru.
96. 90% dintre speciile de pasari sunt monogame. Doar 3% dintre mamifere au aceleasi preferinte.
97. De fiecare data cand linge un timbru, un om consuma 1/10 dintr-o calorie.
98. Un sfert dintre oasele unui organism uman se afla numai in picioare.
99. In urma cu 3.000 de ani, majoritatea egiptenilor antici nu traiau mai mult de 30 de ani.
100. Unghiile de la degetele mainilor unui om cresc de patru ori mai repede decat cele de la picioare.
1. Furnicile nu dorm niciodata. Cu toate acestea, in zorii zilei, furnicile se intind asemenea oamenilor pentru a se dezmorti.
2. Aproximativ 90% din populatia intregii planete locuieste in emisfera nordica.
3 Cimpanzeii si cotofenele sunt singurele animale care isi pot recunoaste imaginea intr-o oglinda.
4. Barajul Hoover din SUA a fost proiectat ca sa reziste pentru cel putin 2.000 de ani. Cimentul folosit la ridicarea impresionantei constructii nu se va intari complet decat peste 500 de ani.
5. In ciuda aparentelor, doua treimi din suprafata intregului continent african se afla in emisfera nordica.
6. Daca tii un caras auriu intr-o incapere lipsita de lumina, acesta va deveni, in cele din urma, alb.
7. Irlanda este singura tara europeana in care nu exista serpi.
8. In provincia Alberta din Canada au fost ucisi absolut toti soarecii. In prezent, este singura provincie din lume in care nu exista asemenea rozatoare.
9. Ochiul unui strut este mai mare decat creierul acestei pasari.
10. Pentru fiecare om de pe Terra exista circa 200 de milioane de insecte. Numai termitele ne depasesc intr-un raport de 10 la 1.
11. Balena albastra este animalul care produce cele mai puternice sunete (pana la 188 de decibeli). Un astfel de sunet poate fi receptat prin apa la o distanta de pana la 850 de kilometri.
12. Te-ai gandit cata benzina ti-ar trebui ca sa poti inconjura planeta cu propriul automobil? Ei bine, in rezervorul unui avion Boeing poate incapea suficient combustibil incat sa poti face acest lucru de patru ori.
13. Stiti care sunt cei mai mari consumatori de Coca-Cola din lume? Daca ati raspuns islandezii, ati dat raspunsul corect...
14. Stiti care este apetitul unui furnicar sud-american? Ei bine, acesta poate ingera pana la 30.000 de furnici... pe zi.
15. Cei mai tineri parinti din istorie ( doi copii cu varste de 8, respectiv 9 ani) au trait in China . Copilul lor s-a nascut in anul 1910.
16. Vreti sa stiti care este regiunea cu cea mai scazuta criminalitate? Incercati Quebec , Canada . Rata criminalitatii in aceasta zona este similara cu cea inregistrata intr-un parc Disney World, aproape 0.
17. Se estimeaza ca in lume exista circa 1 miliard de vite. 200 de milioane dintre ele traiesc numai in India , acolo unde sunt considerate animale sfinte.
18. In urma cu 5 ani, 60% dintre cumparatorii din supermarketurile lumii plateau cu bani gheata. Astazi, procentul este de doar 50%. Se estimeaza ca in anul 2011, doar 39% dintre cumparatori vor mai plati cu bani gheata in detrimentul cardurilor.
19. Pe suprafata unui corp uman traiesc mai multe vietati decat oameni pe intreaga planeta.
20. Bufnitele sunt singurele pasari care pot distinge culoarea albastra.
21. Mamiferele sunt singurele specii vii care prezinta lobi ai urechilor.
22. Prefixul telefonic pentru Antarctica este 672.
23. Desi nu pare, Chicago este mult mai aproape de Moscova decat este de Rio de Janeiro .
24. Lungimea unui elefant este egala, aproximativ, cu lungimea limbii unei balene albastre. De asemenea, limba unei balene este mai grea decat un elefant adult.
25. Limba unui crocodil este imobila. Ea este atasata de cerul gurii acestui animal.
26. Un om uita, in medie, circa 80% din tot ceea ce a invatat intr-o zi.
27. Durata care ii ia unui fulg de zapada ca sa ajunga de la nori pana pe suprafata pamantului? Cel putin o ora...
28. Cei mai mari iubitori ai carnii de porc sunt danezii. In Danemarca exista de doua ori mai multi porci decat intreaga populatie umana a acestei tari.
29. Girafa este singurul animal care isi poate introduce limba in ureche. Limba unei girafe adulte masoara peste 50 de centimetri.
30. Biblioteca Universitatii din Indiana , SUA, se scufunda in fiecare an cu circa 2,5 centimetri. Acest fenomen se datoreaza unei erori a constructorilor care au omis sa calculeze si greutatea cartilor care vor fi depozitate in uriasa cladire.
31. Cele mai numeroase vietati de pe Terra sunt artropodele. Ca un exemplu, pana in prezent au fost descoperite circa 70.000 de mii de specii... de paianjeni.
32. De peste 4.000 de ani, nicio specie animala nu a mai fost domesticita.
33. In prezent, pentru prima data in istoria planetei, numarul persoanelor cu varste de peste 60 de ani il depaseste pe cel al copiilor cu varsta sub 5 ani.
34. Credeti ca Romania este o tara saraca? Ganditi-va ca una din cinci persoane de pe Terra traieste cu mai putin de 1$ pe zi.
35. In Santa Fe, New Mexico, legea impune ca animalele de casa sa poarte centura de siguranta in masina.
36. O singura vaca poate produce intr-un an mai mult lapte decat poate consuma un singur om... circa 200.000 de pahare pline cu lapte.
37. Plajele de nudisti pot fi periculoase pentru navele care circula in apropierea lor. Recent, un iaht cu 60 de persoane la bord s-a rasturnat pe tarmul texan al Golfului Mexic dupa ce toti pasagerii s-au ingramadit pe aceeasi parte a navei pentru a vedea nudistii de pe o plaja din apropiere.
38. Stiti cate emailuri se trimit zilnic in toata lumea? Peste 35 de miliarde...
39. Pentru fiecare tona de peste prinsa in oceanele lumii, oamenii arunca trei tone de gunoi in aceleasi ape.
40. Cea mai mare caracatita descoperita vreodata cantarea 4 tone. A fost vanata in anul 1878, in nordul Oceanului Atlantic.
41. Cea mai mare meduza observata vreodata avea un diametru de 2,3 metri. Tentaculele sale se intindeau pana la 36 de metri.
42. In statul american, Dakota de Nord, nu s-a inregistrat niciodata un cutremur.
43. Hawaii se apropie de Japonia cu aproximativ 10 centimetri in fiecare an.
44. Rechinii sunt singurele animale despre care se stie ca nu se pot imbolnavi de cancer.
45. La Paz , Bolivia , este orasul cel mai sigur din punct de vedere al prevenirii incendiilor. Data fiind altitudinea ridicata la care se afla (peste 3.000 de metri), cantitatea de oxigen din aer de abia poate sustine un foc.
46. Tot in La Paz , temperatura medie este de doar 10 grade Celsius. Si cu toate acestea, niciodata nu s-a inregistrat o temperatura de 0 grade. Situatia este identica si in Punta Arenas , Chile sau Stanley , Insulele Falkland .
47. Absolut toti crevetii se nasc masculi. Unii dintre ei devin femele la maturitate.
48. Daca vreti sa fiti in siguranta in fata unor nisipuri miscatoare, intotdeauna sa calariti un catar. Daca magarii sau caii se scufunda in nisipurile miscatoare, un catar nu o va face niciodata.
49. Chiar si astazi, 90% din teritoriul Statelor Unite ale Americii este format din terenuri neamenajate sau ferme.
50 Numai marea piramida a lui Keops contine suficienta piatra incat sa poate fi construit un zid inalt de 50 de centimetri care sa inconjoare planeta la Ecuator.
51. Cel mai mare sarpe veninos din lume este Cobra Regala. Aceasta poate atinge lungimi de pana la 5,5 metri.
52. O gaina poate depune, in medie, pana la 19 oua pe an.
53. Cel mai mare restaurant McDonalds se afla in... Beijing, China . Acesta se intinde pe o suprafata de 2,6 kilometri patrati si are nu mai putin de 29 de case de marcat.
54. Vreti sa stiti in ce tara se acorda cele mai lungi concedii? Ei bine, in Franta statul asigura angajatilor 5 saptamani de concediu pe an. Cei mai multi francezi primesc, insa, doua luni de concediu anual.
55. Un cal adult poate consuma intr-un an o cantitate de hrana ce depaseste de 7 ori propria sa greutate.
56. Stiti care sunt cei mai mari consumatori de fast-food de pe planeta? Raspunsul corect este... chinezii. 41% dintre chinezi mananca, cel putin o data pe saptamana la un restaurant fast-food. Doar 35% dintre americani fac acest lucru.
57. In randul elefantilor africani, atat masculii, cat si femelele, poseda fildesi, in vreme ce la elefantii asiatici doar masculii se pot lauda cu fildesi.
58. Exista mai multi oameni care invata limba engleza in China decat cei care o vorbesc oficial in Statele Unite (peste 300 de milioane).
59. Oasele membrelor inferioare ale unui liliac sunt atat de subtiri incat niciun liliac nu se poate folosi doar de ele pentru a se deplasa.
60 Cea mai spectaculoasa evolutie a preturilor pe piata imobiliara s-a inregistrat in Irak. Daca inaintea razboiului o casa din Bagdad nu se vindea cu mai mult de 15.000 de dolari, astazi pretul a urcat pana la 150.000 de dolari.
61. Numai in SUA exista aproximativ 7.000 de tigri tinuti ca animale de casa.
62. In anul 2004, un studiu arata ca una din sase fetite intra in perioada de pubertate la varsta de 8 ani. In urma cu un secol, doar o fetita din 100 atingea pubertatea la aceeasi varsta.
63. Pana in prezent, Congresul american a alocat o suma de 152.600.000.000 de dolari pentru razboiul din Irak. Suma ar fi fost suficienta pentru a ridica 17.500 de scoli.
64 Media zilnica a produselor care sunt oferite spre vanzare pe Ebay este de 18 milioane.
65. Doar 5% din suprafata acoperita de oceane pe Terra a fost cartografiata atat de detaliat pe cat a fost suprafata planetei Marte.
66. Va ganditi sa jucati la loterie? Atunci ar trebui sa stiti ca exista mult mai multe sanse sa muriti in drum spre o reprezentanta a loteriei decat sa castigati marele premiu la oricare dintre loteriile lumii.
67. Adezivul de pe timbrele din Israel a fost tratat astfel incat sa fie considerat "kusher".
68. Daca vorbiti la telefonul mobil timp de o ora, numarul bacteriilor din urechea voastra va creste de cel putin 700 de ori.
69. Anvergura aripilor unui Boeing 747 este mai mare decat distanta parcursa de fratii Wright in primul lor zbor.
70. Circa 12 copii sunt oferiti zilnic, in maternitati, altor mame decat cele naturale. Aceasta statistica include toate tarile lumii.
71. O femela de dihor poate muri daca, odata intrata in calduri, nu isi va gasi un partener mascul.
72. Absolut toti copiii se nasc fara rotule. Ele se formeaza complet in intervalul de varsta de 2-6 ani.
73. O persoana are in medie 1.460 de vise in fiecare an.
74. Un om, consuma, in medie, de-a lungul vietii, o cantitate de hrana egala cu greutatea a sase elefanti maturi.
75. In spatiu, astronautii nu pot plange. In lipsa gravitatiei, lacrimile nu pot curge (nici flatulenta nu este posibila in stare de imponderabilitate).
76. Aproximativ 6.000 de fulgere lovesc Pamantul in fiecare minut.
77. In Bangladesh exista o lege care permite autoritatilor sa aresteze elevii cu varste mai mari de 15 ani care copiaza la examene.
78. Cel mai intalnit nume barbatesc de pe planeta este Mohammed.
79. Pana in anul 1796, in SUA a existat un stat pe nume Franklin . Astazi, el este cunoscut sub numele de Tennessee .
80. Ati considerat vreodata ca proiectul romanesc "laptele si cornul" are prea multe hibe? Intr-o scoala din Virginia , SUA, elevii cu varste intre 7 si 10 ani au fost serviti, in cadrul unui proiect asemanator, cu cockteiluri margaritas. In urma scandalului de proportii care s-a iscat, a reiesit ca distribuitorii produselor confundasera limonada cu celebrele cockteiluri.
81. In Anglia este interzis prin lege ca vanzatoarele din magazine sa isi serveasca topless clientii. Exceptie fac doar magazinele de pesti exotici din Liverpool .
82. Doar o singura persoana din 2 miliarde va atinge varsta de 116 ani.
83. Februarie 1865 este singura luna din istorie in care nu a fost inregistrata luna plina.
84. In fiecare an, mai multi oameni sunt ucisi de magari decat in accidente aviatice.
85. Numele original al Bancii Americii a fost Banca Italiei.
86. Cea mai mare piata de desfacere pentru limuzinele BMW 760Li este China . Pretul unei astfel de masini poate urca pana la 200.000 de dolari, mai mult decat castiga majoritatea cetatenilor chinezi intr-o viata.
87. In fiecare an, 60 de milioane de litri de petrol si ulei sunt deversate in rauri si fluvii pana in oceane. Cantitatea o depaseseste pe cea pierduta de petrolierul Exxon Valdez in anul 1989 (unul dintre cele mai mari dezastre ecologice din istorie). Statistica se refera numai la Statele Unite ale Americii.
88. Michael Jordan, celebrul baschetbalist american, castiga anual din reclamele pentru compania Nike mai mult decat toti muncitorii din fabricile Nike, luati la un loc, din Malaezia.
89. Cele mai mari nave transoceanice platesc cate 250.000 de dolari de fiecare data cand strabat Canalul Panama . Trebuie spus ca o treime din economia acestui stat este sustinuta de acest canal.
90. Un singur avion Boeing 767 este format din nu mai putin de 3.100.000 de piese diferite.
91. Durerea are si ea o unitate de masura. Aceasta se numeste "dol" iar instrumentul menit sa masoare durerea se numeste dolorimetru.
92. Se estimeaza ca in Rusia exista mai multe bancnote de 100 de dolari decat pe teritoriul Statelor Unite ale Americii.
93. V-ati intrebat ce a fost mai intai, oul sau gaina? Biblia a raspuns deja la aceasta intrebare. Conform Genezei 1:20-22, gaina a aparut inaintea oului.
94. In absolut toate tarile lumii, indiferent de cultura, religie sau zona geografica, soldatii executa salutul numai cu mana dreapta.
95. Intr-un studiu cu privire la relatiile interfamiliale, 80% dintre barbatii casatoriti au declarat ca si-ar lega destinele de aceeasi femeie daca ar putea da timpul inapoi. Doar 50% dintre femei au declarat acelasi lucru.
96. 90% dintre speciile de pasari sunt monogame. Doar 3% dintre mamifere au aceleasi preferinte.
97. De fiecare data cand linge un timbru, un om consuma 1/10 dintr-o calorie.
98. Un sfert dintre oasele unui organism uman se afla numai in picioare.
99. In urma cu 3.000 de ani, majoritatea egiptenilor antici nu traiau mai mult de 30 de ani.
100. Unghiile de la degetele mainilor unui om cresc de patru ori mai repede decat cele de la picioare.
An invention that's been around for two decades, but is only now getting any real attention, could change the way millions of people drive -- if people ever have the good sense to adopt it, its inventor says. Japanese inventor Masuyuki Naruse claims that placing the braking and acceleration pedals in our cars side-by-side, just inches apart, is a dangerous design flaw. The solution: his Naruse pedal, a unified pedal design that puts accelerator and brake on the same foot-activated lever.
Naruse's pedal places the accelerator control on the side of a larger brake pedal where the foot can nudge it to the right to increase acceleration. Downward pressure on the pedal results in only one singular action: stopping. This, Naruse says, will prevent the many thousands of accidents each year caused by drivers stomping on the wrong pedal, accelerating into peril when they are trying to brake.
In light of the recent spate of accelerator-related recalls, either because the accelerator gets stuck or gets hung up with the floor mat, has renewed some designers interest in Naruse's designs and others like it. Swedish regulators are testing a single-pedal scheme, and in Japan the Naruse pedal has been declared street legal on about 130 individual cars. Considering a Japanese research group determined that some 6,700 accidents -- including 37 deaths -- were caused in Japan last year by drivers mistakenly slamming on the gas, the idea might be gaining traction.
The obvious obstacle between between Naruse's idea and widespread adoption by automakers is the need for people the world over to have to relearn the muscle memory they've developed over a lifetime of two-pedal driving. That, and the clear detriment to Hollywood-style shift-and-stomp acceleration that gets all car lovers' pulses pounding. But from engineering and safety standpoints, a single-pedal design actually makes a lot of sense.
Naruse's pedal places the accelerator control on the side of a larger brake pedal where the foot can nudge it to the right to increase acceleration. Downward pressure on the pedal results in only one singular action: stopping. This, Naruse says, will prevent the many thousands of accidents each year caused by drivers stomping on the wrong pedal, accelerating into peril when they are trying to brake.
In light of the recent spate of accelerator-related recalls, either because the accelerator gets stuck or gets hung up with the floor mat, has renewed some designers interest in Naruse's designs and others like it. Swedish regulators are testing a single-pedal scheme, and in Japan the Naruse pedal has been declared street legal on about 130 individual cars. Considering a Japanese research group determined that some 6,700 accidents -- including 37 deaths -- were caused in Japan last year by drivers mistakenly slamming on the gas, the idea might be gaining traction.
The obvious obstacle between between Naruse's idea and widespread adoption by automakers is the need for people the world over to have to relearn the muscle memory they've developed over a lifetime of two-pedal driving. That, and the clear detriment to Hollywood-style shift-and-stomp acceleration that gets all car lovers' pulses pounding. But from engineering and safety standpoints, a single-pedal design actually makes a lot of sense.
China's Two-Lane-Wide "Straddling Bus" Carries Passengers Overhead, Lets Traffic Pass Underneath
Public transit in a metropolitan area is all about balance; if there aren't enough public transit options, too many people choose to drive, clogging roadways and adding to pollution. But trains are expensive (and, if above-ground, contributors to traffic) and adding more buses to the road can magnify traffic woes further. Enter the 3D Fast Bus, a futuristic concept vehicle that carries passengers above street level, straddling the lanes below so traffic can pass freely underneath.
Chinese company Shenzhen Hashi Future Parking Equipment Co. came up with the idea, which is more like a massive double-wide tram than a bus, with a fixed route and physical connection to the city's municipal power grid. Running on solar power gathered from its rooftop supplemented with grid energy, the "Fast Bus" is expected to top out just shy of 40 miles per hour, so it's not ideal for long treks. But for intra-city travel in large, dense metropolises like those common in urban China, the 1,200-passenger 3D Fast Bus could be a feasible solution, far-fetched though it may seem.
The vehicle is wide, straddling two lanes at a time, letting traffic pass underneath both when it is stopped and when it is in motion. It's clearly best suited to long, straight stretches of roadway, but the bus can turn and is equipped with signals underneath that give cars traveling there ample warning that a turn is approaching. Radar scanners will alert drivers passing underneath if they wander to close to the bus's wheels, and a similar system would warn traffic approaching from behind if a vehicle too tall to clear the bus's belly.
Sound like one of those cool-but-too-crazy-to-work kind of transit schemes? Beijing has already mapped out 116 miles of its Mentougou District as a test bed for the 3D Fast Bus. Construction to install the proper infrastructure should begin by year's end.
Public transit in a metropolitan area is all about balance; if there aren't enough public transit options, too many people choose to drive, clogging roadways and adding to pollution. But trains are expensive (and, if above-ground, contributors to traffic) and adding more buses to the road can magnify traffic woes further. Enter the 3D Fast Bus, a futuristic concept vehicle that carries passengers above street level, straddling the lanes below so traffic can pass freely underneath.
Chinese company Shenzhen Hashi Future Parking Equipment Co. came up with the idea, which is more like a massive double-wide tram than a bus, with a fixed route and physical connection to the city's municipal power grid. Running on solar power gathered from its rooftop supplemented with grid energy, the "Fast Bus" is expected to top out just shy of 40 miles per hour, so it's not ideal for long treks. But for intra-city travel in large, dense metropolises like those common in urban China, the 1,200-passenger 3D Fast Bus could be a feasible solution, far-fetched though it may seem.
The vehicle is wide, straddling two lanes at a time, letting traffic pass underneath both when it is stopped and when it is in motion. It's clearly best suited to long, straight stretches of roadway, but the bus can turn and is equipped with signals underneath that give cars traveling there ample warning that a turn is approaching. Radar scanners will alert drivers passing underneath if they wander to close to the bus's wheels, and a similar system would warn traffic approaching from behind if a vehicle too tall to clear the bus's belly.
Sound like one of those cool-but-too-crazy-to-work kind of transit schemes? Beijing has already mapped out 116 miles of its Mentougou District as a test bed for the 3D Fast Bus. Construction to install the proper infrastructure should begin by year's end.
For the last five years, eVolo Magazine has hosted a futuristic skyscraper design competition. Usually, the entrants imagine giant buildings taller than anything under construction today. However, the most impressive entry in this year's competition goes the opposite route, by dropping the building straight into the sea. This floating building would generate its own electricity and food, house thousands, and plunge deep beneath the waves.
Designed by Sarly Adre bin Sarkum of Malaysia, the waterscraper would be about as tall as the Empire State Building, but with only a couple of stories exposed above the surface. The whole building would be a self-sufficient, floating, arcology. Wind, solar, and wave power would provide energy, hydroponics and the green space at the top would provide food and oxygen, and the structure would provide housing, work spaces, and areas for recreation.
Ballast tanks would keep the structure level, like in a submarine, as would the tentacles. The tentacles would also move around in the ocean tides, generating electricity from kinetic energy.
Adre bin Sarkum deliberately designed this building to contrast with the skyscrapers that dominate the rest of the competition, and to highlight sustainable architecture.
Obviously, no one has any plans to build anything remotely like this. But if global warming throws us into a WaterWorld like future, Adre bin Sarkum's aqua-condo looks like much sweeter digs than a rickety boat captained by a urine-drinking fish-man.
Designed by Sarly Adre bin Sarkum of Malaysia, the waterscraper would be about as tall as the Empire State Building, but with only a couple of stories exposed above the surface. The whole building would be a self-sufficient, floating, arcology. Wind, solar, and wave power would provide energy, hydroponics and the green space at the top would provide food and oxygen, and the structure would provide housing, work spaces, and areas for recreation.
Ballast tanks would keep the structure level, like in a submarine, as would the tentacles. The tentacles would also move around in the ocean tides, generating electricity from kinetic energy.
Adre bin Sarkum deliberately designed this building to contrast with the skyscrapers that dominate the rest of the competition, and to highlight sustainable architecture.
Obviously, no one has any plans to build anything remotely like this. But if global warming throws us into a WaterWorld like future, Adre bin Sarkum's aqua-condo looks like much sweeter digs than a rickety boat captained by a urine-drinking fish-man.
Scaly BMW Concept Car Collects Solar Power, Then Raises Panels to Brake
Plenty of cars can look cool and run green these days, but now designers are taking such concepts to extremes. The BMW Lovos has 260 exterior flaps that can collect solar power and act as airbrakes at the same time.
The wacky car concept comes from Anne Forschner, a 24-year-old graduate of Pforzheim University in Germany. Each scale-like flap holds solar photovoltaic cells and can move to follow the sun or act as individual airbrakes. We can only imagine that seeing a full-scale version of this car driving around might bring to mind a Beast Machine Transformer, or a ruffled feathered dino made metallic.
Perhaps it's less than likely that such a car might make the auto dealers in the near future, but we at PopSci would not be surprised to see similar concepts arise down the line.
Plenty of cars can look cool and run green these days, but now designers are taking such concepts to extremes. The BMW Lovos has 260 exterior flaps that can collect solar power and act as airbrakes at the same time.
The wacky car concept comes from Anne Forschner, a 24-year-old graduate of Pforzheim University in Germany. Each scale-like flap holds solar photovoltaic cells and can move to follow the sun or act as individual airbrakes. We can only imagine that seeing a full-scale version of this car driving around might bring to mind a Beast Machine Transformer, or a ruffled feathered dino made metallic.
Perhaps it's less than likely that such a car might make the auto dealers in the near future, but we at PopSci would not be surprised to see similar concepts arise down the line.
We've been watching Project Natal, Microsoft's controller-less motion detection system for Xbox 360 develop for months, but as the video gaming conference E3 launches this week, Microsoft has unveiled the final hardware and a new name: Kinect.
A few months ago, we took an exclusive look at the hardcore machine learning behind Kinect's unbelievable motion recognition powers.
Other than the final, shiny hardware and the new name, further details are scant. Some leaked promo materials suggest a November release date, which would make sense to coincide with the Holiday buying season.
Beyond the hardware itself, you can expect many Kinect-enabled gamesto be announced over the course of the next few days. Those already announced include a Star Wars game from LucasArts, a Disney game, and a Wii-sports-like title called "Kinect Sports," according to Kotaku.
So while the news continues to roll in, refresh yourself on how the whole thing works here.
Update: A November 4 release date was confirmed today at Microsoft's press event in Los Angeles, as were 15 launch titles. The pricing scheme of $150 standalone and $100 bundled with a new console remains a fairly strong but unconfirmed rumor.
A few months ago, we took an exclusive look at the hardcore machine learning behind Kinect's unbelievable motion recognition powers.
Other than the final, shiny hardware and the new name, further details are scant. Some leaked promo materials suggest a November release date, which would make sense to coincide with the Holiday buying season.
Beyond the hardware itself, you can expect many Kinect-enabled gamesto be announced over the course of the next few days. Those already announced include a Star Wars game from LucasArts, a Disney game, and a Wii-sports-like title called "Kinect Sports," according to Kotaku.
So while the news continues to roll in, refresh yourself on how the whole thing works here.
Update: A November 4 release date was confirmed today at Microsoft's press event in Los Angeles, as were 15 launch titles. The pricing scheme of $150 standalone and $100 bundled with a new console remains a fairly strong but unconfirmed rumor.
Ferrari Simulator This image shows the robotic arm Ferrari simulator without a steering wheel attached. The simulator includes a force-feedback steering wheel and pedals. via Cyberneum
Paolo Robuffo Giordano and colleagues at the Max Planck Institute for Biological Cybernetics in Tübingen, Germany, must really enjoy their jobs. Their CyberMotion Simulator is intended to realistically replicate the experience of driving a Ferrari without actually having to buy one.
Players sit in a cabin on a robot arm about 7 feet off the ground and drive a Ferrari F2007 car around a projected track. The robot arm, a type usually found in amusement parks, whips the driver around to simulate the Ferrari's motion, according to IEEE Spectrum. You can hear the robot whine as the driver tries to turn at high speed.
The researchers wanted to use a robotic arm as a motion simulator with the goal of understanding how humans experience the sensation of motion. They figured an F1 racing game would be a good way to do it, IEEE Spectrum reports.They presented a paper on their design at the IEEE International Conference on Robotics and Automation this spring.
As we learned earlier this week, video games can contribute plenty to real science. But this might be a case of science making a pretty awesome video game experience.
Paolo Robuffo Giordano and colleagues at the Max Planck Institute for Biological Cybernetics in Tübingen, Germany, must really enjoy their jobs. Their CyberMotion Simulator is intended to realistically replicate the experience of driving a Ferrari without actually having to buy one.
Players sit in a cabin on a robot arm about 7 feet off the ground and drive a Ferrari F2007 car around a projected track. The robot arm, a type usually found in amusement parks, whips the driver around to simulate the Ferrari's motion, according to IEEE Spectrum. You can hear the robot whine as the driver tries to turn at high speed.
The researchers wanted to use a robotic arm as a motion simulator with the goal of understanding how humans experience the sensation of motion. They figured an F1 racing game would be a good way to do it, IEEE Spectrum reports.They presented a paper on their design at the IEEE International Conference on Robotics and Automation this spring.
As we learned earlier this week, video games can contribute plenty to real science. But this might be a case of science making a pretty awesome video game experience.
Il urmaresc pe Badea aproape in fiecare seara, ma amuza felul in care spune lucrurilor pe nume. E cam idiot cateodata dar imi place, chiar e fun.
Vazusem de mult un blog ce-i purta numele, dar credeam ca nu e al lui, ca e o gluma. Aseara m-am prins din emisiune ca e blogul lui.
Nu-l inteleg, pana acum ceva timp se certa cu toti bloggarii, nu-i suporta si acum s-a bagat si el in lumea asta. De ce?
Dar dupa ce-si facu blog sa-l stearga, asta nu mai inteleg…
I-am citit acum cateva posturi, si nu se compara cu Badea de pe sticla… ii sta mult mai bine la TV
Vazusem de mult un blog ce-i purta numele, dar credeam ca nu e al lui, ca e o gluma. Aseara m-am prins din emisiune ca e blogul lui.
Nu-l inteleg, pana acum ceva timp se certa cu toti bloggarii, nu-i suporta si acum s-a bagat si el in lumea asta. De ce?
Dar dupa ce-si facu blog sa-l stearga, asta nu mai inteleg…
I-am citit acum cateva posturi, si nu se compara cu Badea de pe sticla… ii sta mult mai bine la TV







