CRITICALMASS

Critical mass

A critical mass is the smallest amount of fissile material needed for a sustained nuclear chain reaction. The critical mass of a fissionable material depends upon its nuclear properties, its density, its shape, its enrichment, its purity, its temperature, and its surroundings. The concept is important in nuclear weapon design.

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Critical Mass

Critical Mass is a cycling event typically held on the last Friday of every month; its purpose is not usually formalized beyond the direct action of meeting at a set location and time and traveling as a group through city or town streets on bikes.

The above text is a snippet from Wikipedia: Critical Mass (cycling)
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critical mass

Noun

  1. the amount of fissile material needed to support a self-sustaining nuclear chain reaction
  2. the tipping point


The above text is a snippet from Wiktionary: critical mass
and as such is available under the Creative Commons Attribution/Share-Alike License.

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