Cardboard bicycle 'close to mass production': tough, green and just $20 [Engadget]
Cardboard never ceases to amaze. Having been deployed in gramophones , stereos and even digital cameras , one inventor now believes it can be used to make the ideal bicycle. Izhar Gafni, from Israel, spent 18 months just folding the material every-which-way in order to discover a strong enough design, and now he claims his technique is almost ready for mass production. His maintenance-free bike uses a "secret" mix of organic materials to make it waterproof and fireproof, and is then lacquered to give it a friendlier appearance. It's expected to cost a mere $20 and weigh about 20 lbs (9 kg) -- that's 65 percent lighter than an average metal ride. In fact, this bicycle doesn't use any metal parts at all -- the solid tires are made of reconstituted rubber and a car timing belt is used instead of a chain. It lacks the swank of a Faraday Porteur , perhaps, but then you could buy 175 of these for the same money. Want proof that it actually works? The bike's ...