The Washington herald., 1922-07-09
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SUNDAY. JULY ., IszA
AN AsTRoNoMIcAI
ANTI-FAT CURE


ANrI-FAT CURE.
A dieting fat iAdy often stan<ss
the scales and frowns. Than q
may ny another weighing nsensr
She might get more consolstion
picking out the proper planet q
weighing herself on Il. But 80
not necessary for her to Visit d
other celestial sphere. In order
hnd out what she would wsiEn /.
them Their sire and dsnsstiss a
known. 1t is merely q msftsr sf
few figures TO beat the guessing {
pert at q county fair IN teflfns d
solar. lunar. Marian. venusian
any other weight In references
what the scales tell you here
Your weight on the earth N
termined by the same surf.os d
Of gravity that legend tells
brought down the apple on ~
Newton's head. The strength
that pull depends not only on
size Of the earth but on it's den Il
or the amount Of matter "a copts
In proportion 10 fits size. The q
face gravity OF any other BODY
space relative to that Of thu -.
L. found by multiplying SIS dens
compared TO the earth's denrft-
lie radius relative to the card
radius.
The radius OF the moon. for
ample, 10 q little over one-fouI
that OF the earth and the den,|
Of the moon is about three-rt{
that OF the earth 20 the surf1
gravity OF the moon relative 70 M
OF the earth 10 the product OF
two or about one-sixth. A man VI
weighs 100 lbs. on the earth wod
weigh about two tons at the surf1
Of the sun. since the surface RAJ
ty OF the sun Is about i7.s "A
that Of the earth. On the moon
man would spring about win
agility OF q grasshopper while
the sun he would be crushed und
his own weight.
On Mercury q man Of 100 poui
would weigh 80 pounds. on We'd
1876 pounds. on Mars Sc pounds.
Jupiter about 900 pounds.
Saturn, Uranus and Neptune
would weigh respectively.
pounds, 15s pounds. ana ISs pour|
In spite OF the great size OF th(
planets these weights DO not did
greatly from the 100 pounds that
would weigh on our own plsd
This IL owing to the fact that
densities Of these planets. Will
are fully as important ss the rad
in determining the surface era Vi
are 30 extremely low compared
that OF the earth. The density
Saturn is only six-tenths that
water. while Uranus and Nepd
have densities that are respectful
LA and 1.os times the density
water. while the density OF the ed
Is SIS times that OF water.
On the largest ssteroid. C
which lie ass miles in diameter.
surface gravity 10 so low tina
man would have no dihiculty
throwing stone with suficl
force 20 send Il OF into space NJ
20 return. On a small aster
twenty miles IN diameter. hev
easily jump OF into space hims.
he felt so inclined
The surface gravity on Antar|
the greatest OF the red giant sta
we might expect TO md very grs
since the radius 10 I've huner
times that OF the sun Its densi
however. 10 only one-thoussnt
that OF the air az sea-ievei or {
Observation-Disclosures that
water. which gives 10 q surfeo TT,
ity about twelve-thoussndth q
Of the earth. So owing TO TIE /,
tremely low density Of this star
get the surprising result that {
Jects at its surface are held "
an attractive force only twel'
thousands OF that Of our own plan
A man OF 100 pounds weight on I
earth would weigh. then. only abe
two pounds on Antares-By Issl
NJ Lewis Of Q. S, Naval Observtte