ELI5, How am I able to go farther and faster on my bicycle than by walking, considering I have to move the mass of the bike, as well as the loss of energy to friction from the gears and wheels?
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I heard that a person on a bike is the most efficient form of transport on earth, and that only long-flight birds can go further on less fuel. For example, you can travel several miles on a bowl of oatmeal. Does anyone know if this is true?
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