liquid crystals

 

These Windows Can Go Opaque On Command

By G. Clay Whittaker

 /  Jun 9, 2016

 

LCD’s Debutante Party

By popsci

 /  Jan 10, 2007

 

Boogie Board: A Battery-Powered Notepad as Convenient as Pen and Paper

By Sandeep Ravindran

 /  Feb 9, 2010