Ever needed to grab a bottle of water only to find the vending machine you've spotted is without power? The folks in Japan have, especially in the period immediately following natural disasters. The solution? Easy. A hand-cranked vending machine that still affords you the option of your desired food or beverage even during an emergency when the power is down. Sanden, a Japanese vending outfit, has developed the system that would allow the country's 5.5 million machines to run sans electricity or solar power and rely on good ol' fashioned muscle. You'll just need to dish out 70