NOUN
- (physics) the mass of a body as measured when the body is at rest relative to an observer, an inherent property of the body
How To Use rest mass In A Sentence
- Russian news agencies said President Kaczynski's plane made four attempts to land in thick fog at the Smolensk airbase, which is near the Katyn Forest mass grave site. Christian Science Monitor | All Stories
- We don't see the electromagnetic field giving up energy to matter in a continuous stream, but rather in little lumps that behave like uncharged particles that lack rest mass.
- Mass m in the equation E = mc is equal to the rest mass times the factor gamma.
- Also, one assumes the duality accounts for the discrete spectrum of possible fermion rest masses (perhaps corresponding to a discrete spectrum of possible closed black hole assemblies?) Science and Unobservable Things
- SHOCKER OF THE WEEK: Nelson Van Alden, the twisted G-man who enforces his brand of rough justice on HBO's Boardwalk Empire, has us gasping in disbelief as he absconds with the dying witness from the forest massacre and plops him in a dentist's chair. Matt's TV Week in Review
- A photon has zero rest mass, but it carries energy and momentum.
- Nevertheless, if its rest mass is zero, it is a photon.