It is equal to 1E7 ergs per second.
Synonym--Volt-ampere.
(c) It has been proposed to use the term as the unit of energy, instead
of activity or rate of energy (Sir C. W. Siemens, British Association,
1882); this use has not been adopted and may be regarded as abandoned.
[Transcriber's note; Watt is a unit of POWER--energy per unit of time.]
Watt-hour.
A unit of electric energy or work; one watt exerted or expended for one
hour.
It is equivalent to :
866.448 gram-degrees C. (calories)
2654.4 foot lbs.
3600 watt-seconds or volt-coulombs.
60 watt-minutes.
Watt-minute.
A unit of electric energy or work; one watt exerted or expended for one
minute.
It is equivalent to
14.4408 gram-degrees C. (calories),
44.240 foot pounds,
60 watt seconds or volt-coulombs,
1/60 watt hour.
Watts, Apparent.
The product in an alternating current dynamo of the virtual amperes by
the virtual volts. To give the true watts this product must be
multiplied by the cosine of the angle of lead or lag. (See Current,
Wattless.)
[Transcriber's note: This is now called a volt-amp. The usual usage is
KVA, or kilovolt-ampere.]
Watt-second.
A unit of electric energy or work. One watt exerted or expended for one
second.
It is equivalent to
.24068 gram degree C. (calorie),
.000955 lb. degree F.,
.737337 foot lbs.,
.0013406 horse power second (English),
.0013592 horse power second (metric).
Synonym--Volt-coulomb.
Waves, Electro-magnetic.
Ether waves caused by electromagnetic disturbances affecting the
luminiferous ether. (See Discharge, Oscillatory--Maxwell's Theory of
Light--Resonance. Electric.)
[Transcriber's note: The Michaelson-Morley experiment (1887) had already
called ether into question, but quantum theory and photons are decades
in the future.]