Bristol news. [volume] (Bristol, Va. & Tenn.) 1867-189?, 1870-02-04

rio tubs IL about a,205 lbs. av irlupoi,) 4.
Q more step Of the same kind ensbies us
10 the attraction exerted upon the beavee-
ly bodies by the sun aud the earth rsspec-
lively; and Il has thus been established
that the mass Of the sun IL very neatly SIT.
{ on times that Of our planet.
We have seen that the diameter IL the
sun Is about 1888 ,imes that Of the earth.
Ills volume or total size, therefore. is about
,2sS. 900 times, while his weight IL only
3l6,8 times that of our planet. G ,nss.
quontly, he must enutst Nf ma,eriAl ( ,ur.
fold lighter on the average than that OF
Ihich the earth Ia composed, his specific
gravity being on the whole about l,3S times
that OF water.
Since the attraction exerted by q sphere
Ia proportionsie TO its mass divided BY the
squire NJ the distance from lite center, Il Ia
'Asily scen that the weight Of snv sbjsct at
the surface OF the sun must be ~ o times as
great as the weight VI the same object upon
the earth. Anything let drop near the sur-
lace Of The earth will fall ahout 10 feet
during the FRS, second, hut near the suu's
surface, II will fs.l more than 4li'feet dur.
ing the FIRST srcond At the end of the next,
H. would have acc. a rud q velocity equal to
that Of q cannon hall as Il leaves the most
powerful gnn and even " let fall at the
height VI miles, IL would traverse this die
lance in less than Ave seconds.
II was once thnnght that an txe rior
shrll, surrounding the true body ofths sun,
was the source his light aud heat, and
| that within tAis slie,l was comparatively
cool, dark body, which might pc ,sibly be
Inhabited by bsings not very unlike our.
selves. Now that We know the case to BE-
otherwise, and that tn, interior If tho sun
must be- At temp nature surprising that
of the bercest fres which can be pro tuced
BY human art. the question Of hsbititsbiliiy
] ses It's signiticrncs, except perhaps from
| . theological point Of view.
But q consideration which might well
have been borne in mind, 10 the vastly
greater weight which an objects at the sun
must exhibit by reason Of the attraction Of
his imm, nse mass. A man OF ordinary size
wonld there weigh nearly 5000 pounds,
| aud although We may hardly iudorse the
younger He'sch-ll's statement that he
would he crushed ss fat rs pancake by
bis own wr'ght," we must concsde that Il
would be q sOmsw hat faiiguiDg exercise for
him IN iun up and down stairs very often,
AID that the suns sui face wsuld be rather
q hard road to travel.
THE suA'sHsAr
The sources Of the light and heat Of the
snu-ihe only two Of his marvellous proper.
lirS apparent TO the ordinary setvtr--are
problems of the greattss difficulty. will
only ray here that the most vivid light do.
,vs,,n ,h. ave a,,d m, nm snne.r. mn,
hI..k an !, mn ~ =. -, Az ~. h,.A
a., ,.r,r.rs,,,. o., a., dno..d D..
,b., .r,, va he ,hs f,,,n.,io,, ~ tI
In n~,nAr vh;.b p,n..a 49, ,n,.,. IN
900 none rad III. ;-.,,.
y. 49,, -
80, 60 ,ha ,ao,n.r.,nr. or ,ha 80 80.
-. Ct -, ~, =, ,ba 80. m ~ o.
go, =. -, .o.o.s. -
10" ~ ,.',, - p..L.
..,;n.,ad :, q, ~ 49,. ,,,,... 50 - .s,i
s,',,'.'',... 800. rnn"t ~ a." r.
-. s,,', q, . ,pS 4. ~ ~. y.
- ~ 90 ~ .',,,,' unei VI
'" - )" % =. 90 s so
lace o th- sun.
A iopurg his estimate that n heat equal
to hat -nitted by the snn m ght b. attain
d by he c"mbu en O. 60 Al this rate OF
o IL had pu per md 10 Sth, squae
foo II Is easy u IND hoS long The whole
mas Vf th' SUI would las " re- II mp's-
a OF c'al banning at that ratio, and furnish
d moreover with an Unlimited ,nppiy OF
.xNgeu TO sap ri the 'omoutti"n. Pei
form'ng The calculation, "" nhd ih't the
o 'iire run would hi con I'm In ! tie
no than 4, 100 sea =, that ~ within = perl
~ longer th n over W b eumai history
extends.
And NV, what is this sun OF Ours = this
center round which eight large planets,
With not ! IS than IL ssteiiItes aud log small
planets, are known 10 revoiv' hS'ite 20 nets
unnumbrrcd aud countless sssrms OF uete-
| Ors this luminary, whose hryent and dak-
Zing beams radiate and have radt'ted foe
ages with profns on which has shown no
signs Of fAinng, although the most vehe-
meat combustion fails to equal II 10 heat,
aud tha most Intense electrical sction falls
| short Of It In light which, Notwithstanding
| the enormous Hoods Of energy which IL 10
pouring Cut, has decreased neither In
weight nor size TO any exttnt which human
skill has sufficed TO detect And does the
realm Of a,ure show shy other object
comparable with IL In m ignitude or In chsr-
arter These are Among the questions
which force themselves on cur coRsidsrs-
ton.
| The sun Is star, apparently not unlike
the most OF those which gem the sky BY
night. This seems better stat 'ment than
TO say that the stars are suus, although Il
would be diff ult to give good denuition
fr either word. Oar idea Of asin oeems
imply that u Is . C. n or for System OF
! plapels OF sattlli es, depend. ntupon it for
their light and radiant heat. There 10 some
ground Ter believing this TO DO IN" case
with some OF the hxtd stars, but Tor sup
p nirg IL TO DO 90 with most OF them there
Is no reason other than the supposed anAlo-
~. But that the suI Is star, one OF the
came great company which spangle the mr.
mamcnt, aud indeed one OF the countless
myriAds which compose the single ntbuis
which re see oil ground US like ring and
cell the mi KY way, seems . Nelte Aoilsh-
I'd fact. Here, as with them, that Sams Law
OF gsAyitation holds unrestricted sway
which the double . reveal to us rs the
guide aud controller al Their MOTORS LAKE,
I,Iy, .,ts A.. -, "a -