H-bar | Article about h-bar by The Free Dictionary
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A fundamental constant equal to h /2π, where h is Planck's constant. Symbolized ℏ. Also known as Dirac h; h-line.
References in periodicals archive
In addition, H-bar
markings will be put down outside any homes where the owners want them, in a bid to prevent parents from parking across driveways.
Bits of rock from the Moon and Mars together with a variety of terrestrial mineral samples spin on the ends of a fully articulated H-bar
, all of whose parts are also turning independently.
There are similar products on the market, the most prominent competitors being Broadfoot Publishing and H-Bar
Enterprises, but they sell for hundreds of dollars more than the Guild Press version.