100 DAYS FOR EXPERIOLATION. DAY N. Forgotten innovations.

I'm amazed how fast new inventions can blow our minds and disappear immediately in our daily speed racing. I didn't do something special today except floating in a network while reading on Doppler effect. Here's a video I found. It contains numerous inventions that can inspire you in a few minutes. I love innovations, even if they are already forgotten since they appeared in 2012.