Gillette's effective, ultra-precise razors are known the world over, but it all started more than 100 years ago when King C. Gillette came up with the idea of using extremely thin and strong interchangeable blades, even though scientists at MIT said it was impossible to produce them. Gillette's aim was to create an innovative razor, to improve the angle of the blades and the handle, to adjust the opening and closing mechanism, in other words to produce the first ‘precise razor'. Success was achieved in 1920...