[ nŭ′tərz ]
A theorem of physics, stating that for every case of invariance in a physics, there exists a unique conservation law, and for every conservation law, there exists a unique invariance.
What’s The #’s Real Name?A hash has referred to stripes on military jackets since as early as 1910. But, in the 1980s, people started using hash to refer to the # symbol.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.