13 Mainstream Products Originally Invented for Space Travel

4. Orthodontic Braces A nickel and titanium "memory metal" known as Nitinol, originally developed by NASA for aerospace uses, is quickly replacing traditional steel dental braces. This new alloy does not crimp when bent and returns to its original shape as teeth shift! This reduces the amount of painful adjustments required through high school. (Physical adjustments that is, not emotional. Sorry kids, you’re going to have to work that out on your own.)