The star. (Reynoldsville, Pa.) 1892-1946, 1910-01-26
NEBuLA HYPOTHESIS,
One Of 'he Host Interesting Prop
c,.t.On5 Of Science.
WHAT Il Ac yaLLY @z2Ne.

descent cas- Al Jumbled Together In
an Enormous Chaotic Cloud
Everybody has heard the phrase. the
hebulH hypothesis. but what is IL?
In a few words this is the meaning
of ''nebula hypothesis" That the sun,
the planets and all that Is In them
were at one time in the inconceivably
remote past vast mass of chaotic. III
candcscent gas all iumblcd together in
an enormous nebua. or cloud.
10 begin with. the first conception
that science has dared to make. how
ever, takes us one step further back
Without mentioning the origin of mat
ter itself science conceives that in the
beginning all matter was uniformly
distributed throughout space that
there were no stars, no planets, no
satellites, but that all space was filed
with the matter we now have divided
up into very fine PARTICLES some dis
tance apart. The consistency of such
material was perfOrce very thin in
deed much more rarefed than the
mir pumps. From this state to the
nebulous state the theory has a miss.
Ing link, one that can only be satisfied
by supposing divine command. for It
assumes, in the words of Professor
Todd, that gradually ccnters Of at
traction formed and these centers pull.
ed IN toward themselves other parti-
cles As a result of the inward fall.
ing of matter toward these centcrs, the
collision of its particles and their fric-
tion upon each other the material
masses grew hotter and hotter. Nebu-
lac seeming TO I'll the entire heavens
were formed-luminous fire mist, like
the fiimy objects stll seen in the sky
though vaster and exceedingly numer-
Gus" This process is supposed to
have gone on for countless ages, faster
in some regions than in Others Many
million nebulae were formed and set in
rotation around their own axes. This
happily can be explained by science.
Whenever particles are attracted to-
ward a center and are kept from fall
drfg directly TO this center a whirlpool
is formed rotating In one direction
IAN example of this, though humble
and not exactly analogous. is the rota-
,tion of water I'm basin when the stop
per is pulled out of the bottom. Crawl
ty attracts the water Immediately
above the hole, which starts flowing
out, thus leaving a space to be filed.
The rest Of the water rushes in from
all sides TO do this. and the whirlpool
ds the result.
Now each of these whirling nebulae
became exceedingly hot, and each
Formed what is known as a star or
sun, our sun being one. The earth
and other planets had not then come
Into separate existence, of course, as
1T is supposed that they were thrown
Off later from the sun.
Our sun in its nebulous form and ro-
hating swiftly on its axis gradually
hattened at its poles on account of
centrifugal motion. This phenomenon
Is entirely familiar to those who have
seen ball Of clay on potter's wheel
swift and the mass so nebulous that
the sun to be took the shape of disk
las time went on the outer part be-
came cool and somewhat rigid, while
Fhe inner part continued its cooling
and contracting. Thus the inner part
drew away from the outer, leaving a
ring of matter whirling around on the
outside. This breaking off of the ring
rs supposed to be FASTENED by the in
ability of the outside to keep up the
swift motion Of the central mass, both
on account Of the slight cohesion and
of the centrifugal force. But this par
ticular part of the argument has moth
ding to stand on If the first law of mo-
tion is true.
In the successive stages of the suns
contraction this process was repeated
lover and over again, until several
rings were whirling around the central
orb. They would necessarily be in
tho same plane. Now. these rings, not
being uniform in mass or thickness,
would each gradually accumulate to-
ward the densest portion until they.
too. would form a ball which would
Subs ,1ont,y fiatten, and if the sub
Stance continued nebulous and the ball
was large enough they would also
Slough rings.
OF course the rings the sun discard
ed have become the planets, which, as
required by the theory, are all very
nearly in the same plane. The rings
THAT the planets formed have become
moons or satellites. So we are driven
Ito conclude that our sun at one time
filled all the space from his present
position to the farthest planet in the
solar system.
! From this theory there is another
thing that we have to believe, and that
Is that every star in the heavens has
gone through this same process and
has family of planets sailing around
1t, Just as our sun has. 1t would be
impossible to see these planets, Of
course, for it is impossible to see a
star, even with the greatest telescope,
except as q mere point of light.
&C raoa ride tho nroviup of this nph-