New washer can accurately measure a bolt's clamping force

A piezoelectric load-sensing washer being developed by a professor and a recent graduate at The University of Alabama in Huntsville (UAH) provides a more accurate way to measure the clamping force exerted by the bolt it is ...

What causes lightning?

Thunder and lightning. When it comes to the forces of nature, few other things have inspired as much fear, reverence, or fascination – not to mention legends, mythos, and religious representations. As with all things in ...

The secret to Usain Bolt's speed may lie in synchronicity

Usain Bolt is one of the greatest athletes of all time. He is the fastest man in the world, holding the 100 metre sprint record of 9.58 seconds, which he achieved at the final of the 2009 IAAF World Championships in Berlin.

Will a human ever run 100m in under nine seconds?

It is never easy to run 100m in less than ten seconds, as the recent Commonwealth Games demonstrated. However, as the world record stands at 9.58 seconds, the attention in recent years has turned to whether a human will be ...

'Touching the Sun': Sunita Williams on spacewalk

(Phys.org)—NASA astronaut Sunita Williams, Expedition 32 flight engineer, appears to touch the bright sun during the mission's third session of extravehicular activity (EVA) on Sept. 5, 2012.

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