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Scoop.it!
In a remarkable feat of micro-engineering, UNSW physicists have created a working transistor consisting of a single atom placed precisely in a silicon crystal. 
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Scoop.it!
A four wheel drive car just 1 nm long which uses electrons as fuel has been developed by researchers at the University of Groningen, who hope it might find uses in nanometre-sized robotics or as tiny transporters to move molecules around. The vehicle has an organic carbon-based frame and four wheel or rotor parts connected to the body via carbon-carbon double bonds. It navigates its copper surface when a nearby scanning tunnelling microscope fires electrons at the bonds, causing them to break and reform the other way around – causing the wheels to turn and the car to move forward.
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