So maybe that self-chilling soda didn't pan out, but Coca-Cola is working on another method for keeping its beverages cool without using power. In partnership with Fuji Electric Retail Systems, the company has developed the A011 vending machine, which is capable of keeping drinks frosty for up to 16 hours a day without using energy. The A011 works by shifting the cooling process from mid-day, when energy use is higher, to nighttime, when there is a higher power capacity. Even after the machine stops powering the chilling, the unit's temperature only rises slightly, thanks to vacuum insu
