Half-life: The time during which half the number of atoms in the element disintegrate.
Heisenberg uncertainty principle: It is impossible to have a particle that has an arbitrarily well-defined position and momentum at the same time.
Hertz: The unit of frequency, also known as cycles per second.
Hooke's law: Within elastic limit, stress is directly proportional to strain.
Horsepower: unit of power, 1H.P. = 746 Watts.
Huygens'principle: Each point on a light wavefront can be regarded as a source of secondary waves, the envelope of these secondary waves determining the position of the wavefront at a later time.
Heisenberg uncertainty principle: It is impossible to have a particle that has an arbitrarily well-defined position and momentum at the same time.
Hertz: The unit of frequency, also known as cycles per second.
Hooke's law: Within elastic limit, stress is directly proportional to strain.
Horsepower: unit of power, 1H.P. = 746 Watts.
Huygens'principle: Each point on a light wavefront can be regarded as a source of secondary waves, the envelope of these secondary waves determining the position of the wavefront at a later time.
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