Cauer solved this problem by comparing electrical quantities and functions to their mechanical equivalents.
12.
On the CSBS each of these arrows has a mechanical equivalent in the bombsight.
13.
Joule's apparatus for measuring the mechanical equivalent of heat.
14.
In 1843 James Prescott Joule independently discovered the mechanical equivalent in a series of experiments.
15.
He obtained a mechanical equivalent of 798 ft�lbf / Btu ( 4.29 J / cal ).
16.
Meanwhile, in 1843, James Prescott Joule independently discovered the mechanical equivalent in a series of experiments.
17.
He now estimated a mechanical equivalent of 819 ft�lbf / Btu ( 4.41 J / cal ).
18.
Rumford made no attempt to further quantify the heat generated or to measure the mechanical equivalent of heat.
19.
Joule estimated a mechanical equivalent of heat to be 819 ft " lbf / Btu ( 4.41 J / cal ).
20.
Mayer not only performed this demonstration, but determined also the quantitative factor of the transformation, calculating the mechanical equivalent of heat.