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Molecular brakes for nanotechnology machines

(Nanowerk Spotlight) The concept of a 'machine' - a mechanical or electrical device that transmits or modifies energy to perform a certain task - can be extended to the nano world as well. On the nanoscale, the nanomachine components would be molecular structures each designed to perform a specific task which, all taken together, would result in a complex function. Nanoscientists have already built molecular motors, wheels, and gears for powering nanomachines (see for instance: "Nanotechnology reinvents the wheel"). The ability to control nanoscale motors, more specifically, to control the motion of molecular components of such motors, doesn't only involve acceleration and movement but, equally important, deceleration and stopping. So far, the development of a practical braking system for nanomotors remains a challenge.

Putting the brakes on auto theft

If you've ever aimlessly wandered around in a crowded parking lot, you probably have a notion of what it feels like to have your vehicle stolen. There's that sense of dread, unease and confusion as you think, "It has to be here somewhere. My car couldn't have just driven away."

Technology: Save The Planet While Hitting The Brakes

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NASA says clip that broke away from shuttle not critical to Saturday's landing

HOUSTON - A metal clip fell away from Discovery's brakes on Friday but NASA said it won't delay the space shuttle's scheduled landing on Saturday.

NASA says clip that broke away from shuttle not critical to Saturday's landing

HOUSTON - A metal clip fell away from Discovery's brakes on Friday but NASA said it won't delay the space shuttle's scheduled landing on Saturday.

American cities try using fake speed bumps to slow motorists

PHILADELPHIA - Cathy Campbell did a double-take and tapped the brakes when she spotted what appeared to be a pointy-edged box lying in the road just ahead.

Bad light leaves match hanging in the balance

Australia, thanks largely to Andrew Symonds, remained in the hunt for victory before bad light put the brakes on them as West Indies chased 287 runs to win the opening Test.

Symonds keeps Australia in hunt in Windies cricket Test

Australia, thanks largely to Andrew Symonds, remained in the hunt for victory before bad light on Sunday put the brakes on them as West Indies chased 287 runs to win the opening Test.

Bad light leaves match hanging in the balance

Australia, thanks largely to Andrew Symonds, remained in the hunt for victory before bad light on Sunday put the brakes on them as West Indies chased 287 runs to win the opening Test.

Symonds keeps Australia in hunt in Windies cricket Test

KINGSTON, Jamaica (AFP) - Australia, thanks largely to Andrew Symonds, remained in the hunt for victory before bad light on Sunday put the brakes on them as West Indies chased 287 runs to win the opening Test.

Symonds keeps Australia in hunt in Windies cricket Test

KINGSTON, Jamaica (AFP) - Australia, thanks largely to Andrew Symonds, remained in the hunt for victory before bad light on Sunday put the brakes on them as West Indies chased 287 runs to win the opening Test.

Harley Museum to open in Milwaukee

Young Chinese men check out the latest line-up of Harley-Davidson motorcycles on sale at the company's main showroom in Beijing, China on December 25, 2007. The United States revved up pressure last week on China to end trade barriers that have put the brakes on the iconic American-built Harley-Davidson motorcycles in the world's biggest market. (UPI Photo/Stephen Shaver).

Robot Teddy Bear Gives Directions and Bitches About Your Drinking and Driving

If you hate backseat drivers, fluffy animals, and people calling you out about your drinking problem, you will definitely want to steer clear of the teddy bear navigation system being cooked up by iX research corporation. The bear gives directions, but it will also critique your driving by saying phrases like "watch out!" when you slam on the brakes. It will even confront you when sensors embedded in its throat detect the presence of alcohol ("You haven't been drinking have you?").

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