Wheel in a corset

Are lightweight construction materials suitable for extremely stressed and safety-relevant components such as car wheel? Tests and calculations show that fiber-reinforced plastics are highly damage-tolerant and distinctly ...

Engineers Assess Dawn's Reaction Wheel

(PhysOrg.com) -- Engineers are studying the reaction wheels on NASA's Dawn spacecraft after automatic sensors detected excess friction building up in one of them and powered it off early on the morning of June 17, 2010. Reaction ...

Reinventing the wheel -- naturally

Humans did not invent the wheel. Nature did. While the evolution from the Neolithic solid stone wheel with a single hole for an axle to the sleek wheels of today's racing bikes can be seen as the result of human ingenuity, ...

Electric drive concepts for the cars of the future

The prospects look good that wheel hub motors will successfully become the accepted drive concept for electric vehicles. German researchers are engineering these motors, which are integrated into the car's wheels.

Spirit Rover Switches to Backward Drives

(PhysOrg.com) -- The rover team has begun driving Spirit backward as next technique for attempting to extricate the rover from the sand trap where it is embedded. The first two backward drives produced about 6.5 centimeters ...

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