The Coalville times. [volume] (Coalville, Utah) 1894-1923, 1904-01-29
I'D eRospEoTs foR flYINo.
piscussioh Of the Dimcuitics In the WAY
of Mnn-ilirht.

of Man-tiight.
Professor Simon Ncwcomb IS the an
thor of an article iu The independent
on Tie subject of "Ihp outlook for the
FFlng Machine" The outlook is very
gloomy from the professors stand.
point lie points out number OF dlf.
hculies, which he says are only preiim-
mary ones patent ON the surface. A
NOR. fundamental one still. which the
writer feels may prove nsurmuunu-
ule. is based Ou d law OF nature which
We nrp hound 10 accept II is that
When we Increase the size OF such ~
machine without changing its model
We increase the weight in proportion
70 Tie cube OF the linear dimensions
f'r example suppose that an inventor
succeeds as well hc may, in making
a machine which will go into a match
c'-', see gomp!g,o ga al iis parts. able
I" hy around the room. II may carry
a button, but nothing heavier. ElutDd
Dl DIS success, he makes one ON th,
samc model twice us large in every
dimension. The part, of the first.
W'lch arc one inch Ia lcug,h. he in.
crelst9 ,o two luchcs Every part Is
twice os long, twice as broad and twice
MS thick. The result is that his machine
" eight times as heavy as before. But
the sustaining surface is only four
Times os great As compared with the
smaller machine, It's ratio OF elective.
ness Us reduced one-halr II may carry
two or three buttons. but VIII not ear.
ry over FOUR because the total weight.
machine plus buttons. cal only be-
quadruplcd, ana II he more than
quadruples the weight OF the machine
no must less than Quadruple that OF
tue load. How many OF such enlarge.
-ments must he make before his ma.
chine will cease 20 sustain itself, be.
Tore it VIII fall as an inert mass when
we seek TO make Il fly through the alry
Is there any Size at which Il win be
able TO support human beingg We
may wei hesitate before we answer
this question In the affirmative.
IL is or Interest 10 notice that the law
u reversed IN the case OF body which
Is not supported by the resistance OF
fluid IN which II Is immersed, but
Heats In it-the ship or balloon. for
example. When We double the linear
dimensions OF a steamship I'm all is
parts we Increase not only her weight,
but her floating power. her carrying
capacity aud her engine capacity eight.
iold. But the resistance which she
meets with when passing through the
water at a given speed f. only multi.
piled four times. Hence, the larger we
build the steamship the more econom.
ieal the application OF power necessary
to drive IL The proportionately dimin-
ishlng resistance which In the dying
machine represents the floating power
is In the ship something 10 be over.
come. Thus, there is n complete re-
versal OF the law In its practical ap-
pllcailon TO the two cases.
The balloon is In the same class
pith the ship. Practical difficulties
~, the larger It Is built the more ei.
.LStlye II will be. aud the moro advan-
tageous VIII be the ratio OF the power
which Is necessary to drive Il and the
reslsnnce 10 be overcome.
II. therefore, we are ever TO have
aerial navigation with our present
knowledge OF natural capabilities Il Is
TO the alrshlp floating In the air. rath.
or than the flying machine resting on
the air. to which we nre TO look. In
the light OF the law which have laid
down, the subject, while not at all
promising. seems worthy OF more at
tentlon than It has received.