![]() |
| If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|||||||
| Tags: car, smallest, worlds |
|
|
Thread Tools | Display Modes |
|
#1
|
|||
|
|||
|
Needs to be scaled up so we can ride in it .
photo on http://dnaindia.com/report.asp?NewsID=6847&CatID=5 American scientists build world’s first nano car Agencies Sunday, October 23, 2005 15:50 IST American scientists at Rice University have constructed the world’s smallest car — a single molecule “nanocar” that contains a chassis, axles and four buckyball wheels. The nanocar consists of a chassis and axles made of well-defined organic groups with pivoting suspension and freely rotating axles. The wheels are buckyballs, spheres of pure carbon containing 60 atoms apiece. The entire car measures just 3-4 nanometres across, making it slightly wider than a strand of DNA. A human hair, by comparison, is about 80,000 nanometres in diameter. “The synthesis and testing of nanocars and other molecular machines is providing critical insight in our investigations of bottom-up molecular manufacturing,” said one of the two lead researchers, James M. Tour, the Chao Professor of Chemistry, professor of mechanical engineering and materials science. “We’d eventually like to move objects and do work in a controlled fashion on the molecular scale, and these vehicles are great test beds for that. They’re helping us learn the ground rules.” Other research groups have created nanoscale objects that are shaped like automobiles, but study co-author Kevin F. Kelly, assistant professor of electrical and computer engineering, said Rice’s vehicle is the first that actually functions like a car, rolling on four wheels in a direction perpendicular to its axles. Kelly and his group, experts in scanning tunnelling microscopy (STM), provided the measurements and experimental evidence that verified the rolling movement. “It’s fairly easy to build nanoscale objects that slide around on a surface,” Kelly said. “Proving that we were rolling — not slipping and sliding — was the most difficult parts of this project.” To do that, Kelly and graduate student Andrew Osgood measured the movement of the nanocars across a gold surface. At room temperature, strong electrical bonds hold the buckyball wheels tightly against the gold, but heating to about 200 degrees Celsius frees them to roll ..... • Airports in Tamil Nadu get Wi-Fi services • Weapon against dengue developed • ‘Collapsing ice shelves will hasten higher sea levels’ • Super Jumbo to use chip from India • Failed stars may become planets • Exercise could help asthma patients • American scientists build world’s first nano car • Embryo of light brightens frontier research • Steroids may make you sterile • Netscape update fixes Firefox bugs more Evolutions » |
| Ads |
|
#2
|
|||
|
|||
|
habshi wrote: Needs to be scaled up so we can ride in it . photo on http://dnaindia.com/report.asp?NewsID=6847&CatID=5 American scientists build world's first nano car Carriage but not automobile. Now it requires a power source. |
|
#3
|
|||
|
|||
|
What kind of mpg does it get?
Bret Cahill |
|
#4
|
|||
|
|||
|
The posted article differs from the link and states that they have
already followed up with a light (I assume laser) powered nano-car as well as a nano-truck capable of carrying a payload. I don't expect these vehicles have 'engines' per se but are driven along by electro dyanamic pressure. In the first tests the nano-car was pulled along using the probe tip of a scanning tunneling electron microscope. Kevin |
|
#5
|
|||
|
|||
|
Only 15% of the petrol energy is converted to power on the
roads. What if we leave the car running all night in the garage while it charges an electric battery or a few of them ? Will that get say 50% of the energy converted so that we can end all oil imports . Electric engines are better at stop , go driving |
|
#6
|
|||
|
|||
|
In sci.physics habshi wrote:
Only 15% of the petrol energy is converted to power on the roads. What if we leave the car running all night in the garage while it charges an electric battery or a few of them ? Will that get say 50% of the energy converted so that we can end all oil imports . Electric engines are better at stop , go driving You are probably the most blazingly stupid person I've ever heard that wasn't institutionalized. -- Jim Pennino Remove .spam.sux to reply. |
|
#7
|
|||
|
|||
|
Its only 10 % .
LPE proves it and the water rocket proves it. |
| Thread Tools | |
| Display Modes | |
|
|
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| the smallest reflection? | mikephilbin1966@yahoo.co.uk | Physics - General Discussion | 36 | January 7th 05 10:48 PM |
| The smallest, at once the largest, mirror of them all? | glbrad01 | Physics - General Discussion | 6 | January 3rd 05 01:55 AM |
| BMW UNVEILS WORLD'S FASTEST HYDROGEN-POWERED CAR | Dr. Jai Maharaj | Physics - General Discussion | 1 | September 24th 04 01:00 PM |
| Which is the smallest particle known? | JW | Physics - General Discussion | 6 | November 12th 03 06:48 AM |
| Tesla and GEs 1931 Electric Car ( Electric Car Batteries charged by Sea Water ? ) | rev dan izzo | Physics - General Discussion | 0 | September 29th 03 08:49 PM |