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Rosie the Robot
I thought people might find this interesting. A robot that uses a ball to move and balance instead of wheels. Is this similar to what I saw before on this website or is it different?
http://www.msl.ri.cmu.edu/projects/ballbot/
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If either a public officer or any one else saw a person attempting to cross a bridge which had been ascertained to be unsafe, and there were no time to warn him of his danger, they might seize him and turn him back without any real infringement of his liberty; for liberty consists in doing what one desires, and he does not desire to fall into the river. -Mill
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