Critical mass (disambiguation)

Critical mass is the amount of fissile material needed to sustain nuclear fission.

Critical mass may also refer to:

Science and technology

Critical Mass (cycling), a form of direct action and celebratory gathering involving large groups of bicycle riders
Critical Mass Energy Project, an anti-nuclear umbrella group founded by Ralph Nader
Critical Mass Journal, published in 1977 by the Critical Mass Energy Project
Critical Mass, a co-working center sponsored by the New England Venture Capital Association
Critical Mass, a robotics team of the Dwight-Englewood School in Englewood, New Jersey

"Critical Mass" (Arthur C. Clarke short story), 1949
"Critical Mass" (Pohl and Kornbluth short story), by Frederik Pohl and Cyril M. Kornbluth, 1962
Critical Mass (book), a 2004 popular science book by Philip Ball
Critical Mass, a 1990 comic book limited series published by Shadowline Saga
Critical Mass, a 1994 current events book by William E. Burrows and Robert Windrem
Critical Mass, a 2013 novel by Sara Paretsky
Critical Mass, a 2023 novel by Daniel Suarez
Critical Masses, a 1998 book by Thomas Wellock

Critical Mass, a 1971 experimental short film from Hollis Frampton's Hapax Legomena cycle
Critical Mass (anime), a subdivision of the video publisher and distributor Right Stuf Inc.
Critical Mass (film), a 2000 film starring Treat Williams and Lori Loughlin
"Critical Mass" (Adderly), a 1986 television episode
"Critical Mass" (Stargate Atlantis), a 2006 television episode