302
MOLESWORTH'S POCKET-BOOK
Beat—The unit of heat is the quantity required to raise
the temperature of one grain of water at its maximum density
10 Fahr.
^.Absolute mechanical equivalent of unit of heat =24861=772
foot-grains at Manchester.
Thermal equivalent of absolute unit of work = 0 • 000040224.
Thermal equivalent of foot-grain at Manchester =0 • 0012953.
Electrochemical equivalent of water = 0 ■ 02 nearly.
Metkical System.
RELATION BETWEEN ABSOLUTE AND OTHER UNITS.
One absolute f force __, naAOa91 weight of a gramme ) at
unit of (work metre-gramme j Paris.
.. t> fthe weight of a gramme_ q.snHfia absolute (force.
At Parls (or metre-gramme = 9 80868 unit of {work.
One absolute (force 1 unit weight ) every-
unit of (work ~ unit weight x unit length; where.
y in metrical system = 9’78024 (1 4- 0'005133 sin.2 X)>
where A — the latitude of the place where the experiment is
made.
Heat—The unit of heat is the quantity required to raise
one gramme of water at its maximum density 1° Centigrade.
Absolute mechanical equivalent of the unit of heat =4157 • 25
=. 423’542 metre-grammes at Manchester.
Thermal equivalent of an absolute unit of work=0 •00024054.
Thermal equivalent of a mbtre-gramme at Manchester
= 0-00236154.
Electrochemical equivalent of waters 0‘0092, nearly,
Morse Alphabet.
A - — H - - - - O V
B I - - p W
C -J -Q X
D K R Y
E - L S - - - Z
F . .. M — — T —-
Gr —■ — - N — - U