The device's primary source of neutron radiation was the radioactive element californium, but the stream of neutrons produced by the californium was multiplied by passing it through a lattice of highly enriched uranium U-235, whose nuclear fission released additional neutrons.

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The second element of the SVSC is the way it provides open source documentation of effective start-up practices.

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Every element of the XO's software is open-source and malleable: Its creators hope that kids in Mongolia and Peru will someday program their own applications for the devices and even modify its source code to improve its operating system.

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