[ExI] shoes and boots: tanstaafl

William Flynn Wallace foozler83 at gmail.com
Tue Apr 7 13:53:24 UTC 2015

An article in Nature discusses an exoskeleton boot that makes walking a bit
easier.  Of course you have seen ads for a tennis shoe with a spring in the

So, you physicists out there, there's no such thing as a free lunch, is

bill w
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