Najmanji auto

Najmanji auto

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  • Pridružio: 10 Feb 2005
  • Poruke: 3549



Using the parts inside a single molecule, scientists have constructed the world's smallest car. It has a chassis, axles and a pivoting suspension. The wheels are buckyballs, spheres of pure carbon containing 60 atoms apiece.

It'd be a real squeeze to take it for a spin, however.

The whole car is no more than 4 nanometers across. That's slightly wider than a strand of DNA. A human hair is about 80,000 nanometers thick.

Other groups have made car-shaped nanoscale objects. But this is the first one that rolls "on four wheels in a direction perpendicular to its axles," the researchers reported Thursday.

What's the point? Nanotrucks, of course.

Eventually the researchers want to build tiny trucks that could carry atoms and molecules around in miniature factories.

"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," said James Tour, a Rice University research who co-led the work. "They're helping us learn the ground rules."

The setup will be detailed in an upcoming issue of the journal Nano Letters.

The scientists had to use "scanning tunneling microscopy" to see the thing and prove that it rolls like a car.

"It's fairly easy to build nanoscale objects that slide around on a surface," said Tour's colleague Kevin Kelly. "Proving that we were rolling – not slipping and sliding – was one of the most difficult parts of this project."

So just how do you make a nanocar go?

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.
Ovde



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  • Pridružio: 07 Maj 2005
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  • Gde živiš: my city, preko puta tri kaputa

eovo je stvarno fantastično1

stvarnno mi nije jasno kako to uspeju da izvedu, ipak je sve na nivou molekula .

nanotehnologija je budućnost.

btw, ovaj "fića" s obzirom na veličinu sigurno ima djunte sa sitnim nutom kao Flojdov :-) .



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  • Civil Works Team Leader @ IKEA Centres Russia
  • Pridružio: 22 Jun 2005
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  • Gde živiš: Moskva, Rusija

Samo zamisljam sledecu scenu: gomile i gomile nanobota vredno rade kao robovi negde u ljudskom krvotoku, a pored njih prolazi baja dvo-nanobot (od 2 nanometra Wink ) u svojoj ganc novoj Ugljo-Silikonsko-oksidnoj limuzini i mase kroz prozor... Very Happy

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  • Pridružio: 10 Feb 2005
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E ljudi dajte malo ozbiljnosti.
@MoscowBeast
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