The Durham daily globe. (Durham, N.C.) 1889-1894, 1892-10-01
THE EARTH MUST DIE.
An Illustration Showing That the Solar
System VIII Inevitably Expire.

System Will Inevitably Expire
Consider a fywheel or clOckwork a:
driven by a weight and the heat gener
ated b. friction against the motion Of
wheels and pendulum and by impact:
of teeth against the pallets Of an escape
ment. Our knowledge Of properties Oi
matter and of modes Of propagation OF
heat by radiation or conductiOn, and OF
the efficiency of heat as a motor, discov'
cred by several thousand years Of OBJ
servation and several hundred years OF
experiment and dynamical theory, suf,
fees TO show that when the weight i
run down and the potential energy (or
c~apacitv to do work. which it had i'll the
beginning has been all spent in the heat.
this heat is not available for raising the
weight and giving the clockwork Il re-
Hewcd lease Of mOtivity.
The solar system, according to the
best modern scientific belief, is dy-
nauIically analogous to the clOckwOrk
in all the essentials Of our consideration.
Not going back in thought to q begin
ming Of which science knows nothing,
let us compare the solar system rs it
was 5000 years ago with the solar sys-
TEN as it Is now. Let our analogue be
"hlch thFee our age WAS
known to be going with its weight par
italy run down, and which is still GO
ing with its weight not yet wholly run
down.
D"iih5 the'' ''""o years the sun Ld'
peei! GIVING ouI r"ul"hL hcaU tlShC pe-
ing lhcl"ded III me d~eSlShatloh 'radlaht
neat III LII ulIectl"ilS' aV
lHe Iale o. ABOUT niue ana d nan lillLoll
ail4lioh hIloliie'erS per year, ana Uhefe-
IoIe '"ehlE-'l& aLu d nan thou9ah"
IiiiIo" iu4iioh hliohlticr5 III o'oooy ears
we 20 Ao' KNOW" hciher the ll5Ht "llcI
i'It 'he sun ''"o'S ears ago Is StlII'fdEcl-
ing "'''"aT" y almost unalllllili'hed
energy or Wht'hef hearIy all Is already
~'"S"lral'.' ~ ii'"t' warming me l'llllLil-
ferrous "'1cf or pohderabIe DouleS Whlch
n@', , "D''i uc'TH us couI'e: we may,
IllHh' ieeI sure thaJ II Is parity sui
""'ri'h" OH ware" a9 RADIANT ilea'' ana
I"I'Iy SPeHC COR "lSHlPa'ed) III warming
PoA"eIaDlo lIdtl'f lof pollt'fahie mai
Yer ana rue l"ihIhIleFpH" ethefh
me llthhlit% do'"h OF the weight III
Inc has Its perfect analogue,
as lICIli'loI'Z was, l pelleVe, Ill realty
IN '''! hi7' - P''iI o"I III lhe Sllrlhh-
age oi t''o sun lIo'l century 10 century
""t,i ',' in''''0!0' VI 'H7 Hlutudl gray
iD"''1l'i "'''"c'!oiS us parts
II l'aI producing eLIclellcy OF the IRE
WiIch mere would De II the sun were a
@Iobr u Pc" or Suhcotton Durn-
1,5 from us SURFACE inward
IliaI Is W say the WORK zone by the pO-
ielt!a4 energy OF the chemical athnlty
uhcolloIhed oxygen ana carbon
ana hSurocaTDohS' aCtractl~e forces rs
truly forces ana suOJecC 10 dynamic law
aS - 'lo Iorce Oh gravity ltselt, is abs0-
luIely iiillnIIeaIllal III comparison with
thc WORK lone by the graVltatlonal at
tI"ctloh Oh Ile shrinking mass adduced
" !ltiilHoIIH us the real source or tie
sun nett
Inc N1oIe story OF energy now III the
SUM- "ne'ner ol ACTUAL neat correspond
iH5 " VIZ sun mig temperature or or
PoteI,'l"I cn'-SG Nda oI tile not run down
weight VI '"' CLOCK "ork)-potehtlal en-
"T1 Vi 5a"'l'"'lon uePeholhS on the
'N'cu' - I"'"Ie slirlnkaSe Wllch the
sun !" oeS'lheu experiments essen
llaiIy h'Ll'e, ana there IS much less OF it