The Meeker herald., 1916-01-15
HEAT Of Our sun
10 Measure II Is 4 PaIfezng
Protien For Science
NEWTON ONCE TRIED TO DO IT

NEWTON ONCE TRIED TO % IT
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has h4sh answered h naU 61efsss
usys. sSd II b bs 70 DeaAs essrzsa
that We hare JET aF1fred n AZ eT<1
spSrDximst<sJ accurate ass1e4- Yea
II rsgn ae<n that. ~ Tie szzs 10 tre
,rly socres II tie earthis k<1e aSa
u ne know the eI1rf 6issx nuea-01 tae
Sci. il ought % lie easy To e7acsaie
his beat Thxt b what Neutoa ttc0xhr
d 100 WHEN. fnding that . th<rDo8-
<fsf registered g G<1re4 T. In ,a<
sun and H.S4 degrees c tn de SHADE
and applying the tav Of the sqnafe Of
distance he announced that The sans
heat vas 1.GGD1O degrees c.
In 1871 Sir John HefScbei AID Pou1l-
,s4 derised special instruDsnfs foe
measuring the solar heat bat At the
very beginning disagreed on . faDda-
mentAi question Pouiilet wanted to
estimate that the eaTrh-s atmosphere
cut Of half the suns heat: Hesscbei
Insisted that II cut Of only ooe-third
HerScbel reached the coociusao0 that
the suns heat was two c1loeies per
square centinetef per minute PouiL
le1 calculated II at l-1S33 c1iofies per
square centimeter per minute This
means that the suns rays falling ves-
ticaiiy upon each square centtmetef Of
the earths surface would be SUFFICIENT
~ powerful. II it were not for their
absorption By our atmosphere. to raise
l.7sa3 grams Of water one degree C.
per minute This number ID what ~
tronomers call the solar constant
Pouillet's figures. IL. were generally
accepted until recently Forbes by eI
periments At the top and At the base
of u high mountain calculated that 2-S5
was the correct number. Wolfe made
1t 254. and Crova asserted that it Was
certainly superior to two caiories per
square centimeter per minute
The American Langley invented the
boiometer. by means Of which be
measured the intensity Of each ray by
the length of its wave before entering
our atmosphere. Thus be proved that
the rnys Of shortest length are tberte
that are most absorbed 1t u H II ne
placed two red glasses between our
selves and the sun. one representing
the suns atmosphere and one repre-
senting our own
The Able Moreux. director OF the
Bourges observatory. declares In an
article In Cosmos TINT II thene two at
nospheres were eliminated aud We
could see the sun as be really ~ br
would appear to be brilliant grs-nish
blue.
Langley's calculations placed the "a
La constant at about three He proved
that scarcely GO per cent Of the suns
rays penetrated to sea level.
Other observers obtains-6 other IL:
ures. and at the beginning Of this cen
fury the tendency was to return to
those announced by Herschi and
Pouiliet.
1t is certain that the earth lnter.ept-
only about Que two-billiOn,h part of
the actual neat of the sun. pui II We
adopt Langley's figure. 3. We tiid thit
the fraction Of heat received would H.
sufficient to melt annually layer If
ice 222.75 feet thick NJ the equator ot
the earth. The average power receiv-
ed from the sun over the entire earth
Is equal to l54.4tilOOO kilogrammeters
a year. or one continuous horsepower
for every LIZ square meters
The greater part Of this heat IL used
up in keeping the earth warm; but. &C.
cording to Helmholtz. about thou
sandth part Of II IL absorbed by ami
mails and vegetables and h4cOMex an
abundant reserve Of energy for the
human race.
II We accept the more recent ngures.
which are the result Of the calculat tons
Of Messrs. Abbott. Fowle and Aldrich
at the Smithsonian institution In
Washington and call the solar constant
two calories per square centimeter per
minute. the results are scarcely less
striking.
II the total heat could be applied to
a block Of ice at o degrees c. as thick
as the earth-S.OOO miles-thIs would
be entirely melted in a quarter Of an
hour. All the water thus obtained
would be turned to steam at lOO de-
grees c. III minutes later. the whole
operation from Ice to steam having
taken only two hours and twelve min
utes.
The most recent estimate Of the tenn
perature of the SUMS surface il be-
tween 5000 and 1000 degrees Chew
York World.
Limited Oissipatisa.
A small henpecked little man was
about to take an examination for life