The environmentally friendly machine generates its own electricity through a chemical reaction of oxygen from the air and hydrogen ... electricity of a typical vending machine.

Proceeds from the vending machine totaled 800,000 yen ($5,100 ... including costs for a powerful air purifier, an automatic locking system and other interior construction work.

We all know that Japan is the land of vending machines, with automated retail terminals selling everything from hot sauce to potential marriages. They’re also sources of technological innovation as ...