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MIT Media Labs $100 laptop prototype for its One Laptop per Child (OLPC) project. According to MIT Media Labs director Nicholas Negroponte, because of the environments in which these notebooks must survive (eg: the jungles of Cambodia), these machines will be made of rubber, and will hermetically seal when closed. The AC power cord doubles as the shoulder strap. The ruggedized laptop can be self-powered, too -- its wind-up crank, designers hope, will deliver 10 minutes of power for every one minute of cranking.