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Meanings of planck's constant in английском
португальский
constante de planck The constant of proportionality relating the energy of a photon to its frequency; approximately 6.626 x 10^-34 joule-second.
Synonyms
Examples for "h"
Examples for "h"
1
All results were available 4 h after the results of microscopic analysis.
2
Results: OVA challenge induced an AHR after 24 h in OVA-sensitized guinea-pigs.
3
Some animals were then given an additional 2 h infusion of saline.
4
The second group of patients received IFN-gamma by a continuous 24-h i.v.
5
Absolute values and relative changes within the preceding 24 h were analyzed.
Usage of planck's constant in английском
1
We are at the point of defining the kilogram using another constant-Planck'sconstant.
2
Some rather odd things, including fractions of Planck's constant.
3
But what the heck is Planck's constant?
4
The hitch here is getting a suitably accurate measurement of Planck's constant, and that's proving tougher than anticipated.
5
No more physical objects - a kilo will be calculated by reference to a physical constant known as Planck's constant or 'h'.
6
The quantum Hall effect allows the international standard for resistance to be defined in terms of the electron charge and Planck's constant alone.
7
All units of mass-thekilogram, the atomic mass unit, and even America's sweetheart, the pound-canbe calculated from that value of Planck'sconstant.
8
A day or two later an indignant mathematician rose to state, in the letter column, that Planck's constant is actually 6.55 divided by 10,000,000,000,000,000,000,000,000,000.