Wool-like material can remember and change shape
Thursday, September 3, 2020 - 16:11
in Physics & Chemistry
As anyone who has ever straightened their hair knows, water is the enemy. Hair painstakingly straightened by heat will bounce back into curls the minute it touches water. Why? Because hair has shape memory. Its material properties allow it to change shape in response to certain stimuli and return to its original shape in response to others.