22/03/2016
How Do Vending Machines Detect Fake Coins?
MACHINES: HOW THEY WORK Thursdays 10/9c on Science This machine can decipher coins with pinpoint accuracy. Light sensors measure the…
All About Games
All About Games
MACHINES: HOW THEY WORK Thursdays 10/9c on Science This machine can decipher coins with pinpoint accuracy. Light sensors measure the…