This just in:
when uranium-235 is bombarded by a neutron, it undergoes fission which in turn releases more neutrons. Some of these escape, but a portion seeds further fission events – that in turn releases more neutrons. A critical mass is the amount of fissile material needed for a sustained chain reaction.
Friday 25th October, 5:45pm Garema place.
Site: http://tinyurl.com/canberracriticalmass
Wikia: http://criticalmass.wikia.com/Canberra
Facebook page: https://www.facebook.com/pages/Canberra-Critical-Mass/626046364085482
Facebook event: https://www.facebook.com/events/369073426559153/
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