Squeeze power

Under pressure, plastics produce energy

By Stephen Ornes, 14:18 PM March 27, 2012

 

 

 

The “lightning shoe,” looks like an ordinary Nike LeBron sneaker. But it hides a secret that isn’t revealed until the sneaks have been for a 30-minute walk. Then, a liquid solution inside the sole begins to glow an eerie blue.

 

The engineers at Northwestern University in Evanston, Ill., who designed the new glow technology aren’t in the shoe business. Nor is their lightning model slated to hit stores in the near future. Rather, the researchers used this project as an example of a way to get...

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