Critical Mass

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Radiation safety The minimum amount of material—mass of a particular radioisotope—required for it to reach ‘criticality’ and undergo a spontaneous fission chain reaction, releasing a lethal shower of neutron and gamma radiation
Research A popular term for the minimum number of persons working in related fields in a particular place, below which creative thinking and interaction may be suboptimal
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
References in periodicals archive ?
Another compelling feature of Critical Mass is that it has no central leadership.
If critical masses are still reached, how will these critical masses be achieved (e.g., time-shifted L7)?
Critical Mass elegantly straddles the boundary between installation and performance art by drawing the viewer into its embrace.
Over post-Mass pints, Katherine Jackson, an English teacher who cycles from home in Moseley to work in the city every day, says: "A lot of people shout as we're passing 'What are you doing?' "Tonight some lads were shouting 'Are you on the internet?' so I said 'No, I'm on my bike!'" But the jovial nature of Brum's critical mass masks some pertinent points.
For an idea to reach critical mass, a certain number of innovative, well-connected people must first adopt and retransmit it.
WASHINGTON - How to define a "critical mass" of minority students was the question of the day on Wednesday during a heated Supreme Court oral argument on the consideration of race in the University of Texas at Austin's admissions processes.
It began with accumulating a critical mass of bar-coded products and gaining experience using the bar codes.
Dianne Wilkins, CEO, Critical Mass said, 'We're especially proud of this win for best integrated online campaign because it speaks to the strong partnership we have forged with TBWA.
Newcastle's first "Critical Mass" bike rally was due to take place in Newcastle this evening.
The goal in operating terms should be how to get to critical mass, a destination not even on the radar screen for the vast majority of advisory firms.
The British Government's counter terrorism communications unit found that a network of Islamic political bloggers is reaching "a critical mass.