[ad_1] At over 60 billion revolutions per minute, a nanomechanical rotor developed by Tongcang Li, a Purdue University researcher, and his co-authors is more than 100,000 times faster than a drill High …
Read More »Falling stars that fall freely show that a cornerstone of physics resists
[ad_1] It may not be intuitive, but drop a hammer and a feather and – in the absence of air resistance – they will touch the ground exactly at the same time. …
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