The Bossier banner. [volume] (Bellevue, Bossier Parish, La.) 1859-1952, 1885-01-15


1000 miles. When a man has gone
1000 miles on the earth his feet
still point to the center, for he
has been walking on curved surface,
but when he has gone the same distance
on eubical planet, he has, of course,
been walking on plane and, as his feet
must, by the force of gravity, continu-
ally point toward the center of the cube,
his body and face must incline more and
more toward the surface as he goes on.
You may see my meaning by noting that
a stone dropped from his hand any
where onto the plane must fall toward
the center of the cube; its fall must be
slanting when the man stands any
where but at the planes middle point,
and the further away he is the more the
stone must slant. It would not drop at
right angles to the surface, as it would
on the earth, but at an angle varying
according to circumstances, and, Just as
the stone slants in falling, the mans
body would slant in standing. By great
exertion he might do what we call stand
ing. but generally when he occupied that
position he would accidentally have
stumbled into it. His houses would all
have to slant in the same way: trees
would grow so, and rain would fall So y
''NVhat an extremely absurd situation
for human being TO oceupy!' exclaimed
| the writer.
| s'.We have something analogous to it
on the earth" continued Dr. Vankirk.
1--WE are in precisely such a position
when we climb hill, and houses built
on hillside stand at some other than a
right angle to its sloping side. Between
ourselves and our friends on the cubical
planet there is, however, this important
difference. We actually ascend hills
when we slant, but, by hypothesis, our
! friend walks along a surface all plane
when he slants, and the nearer he gets
/ to its edge the more he
slants. The effect upon him can,
however, be none other than
that he is going up an acclivity, and
this must be his impression. For, con-
slider. the matter for a moment. A
mountain peak is higher than the com
mon surface of the earth only because
its summit is further away from the
earth's center than is the plain at its
base Our traveller on the cubical
planet gets at every step further from
the center of the cube, and consequently
at every step he ascends an acclivity
and slants his body slightly to keep in
line with gravity. The further he gets
from the starting point we have given
| him the more he slants-that is to say,
the sleeper becomes his hill, until at
last, when he comes to the edge of the
/ pIapa. ba- caa,,,o 70 ctapd ,,,or.irrbt onoo
more, and on the summit of a mountain,
and instead of lying on his face to look
1 down the jun1ping-off place, he looks
down into two valleys from his noun
tain top, the one valley being the plane
along which he has been journeying
and the other being the adjacent side
of the cube. If, instead of going to the
edge of the plane he has travelled to one
of the four corners he has only ascended,
and, with ever increasing difficulty, one
of four enormous, overtopping noun,
tains as much higher in proportion than
the ridge along the edge, as the by.
pothenuse of right angled triangle is
longer than either of its sides. Do you
get my meaningp"
Eyes" replied the writer, "the mar
has been going up hill all the way. fol
/ he has been getting further from the
center of the cube. y
+ ''And if he had gone to the opposite
edge of the square he would have gone
| up another hill, and so on, all arounc
I the square, which would be an oblona
hollow, or cusp, or cup" continued the
/ doctor, 'havlng as its lowest point the
middle point of the square. There car
be no escape from this conclusion Yor
orr, if we were now placed on such 6
j planet, would know that in walking tc
one of its edges we had gone up hill
and this view of the matter would be
confirmed when, placing round stone
on our mountain side, we had seen il
/ roll down into the valley. What would
be true, however, is that it would have
/ rolled merely from the edge of plane
square surface to its middle point in or
der.to get as near as possible to the
center of the cube, which is the radiatine
point of gravitation.
Exactly, said the writer 'sNow,' 2
DR.. Vankirk went on, warming up to his
subject, .sthe surface along. which on
friend has been iourneying is, by hy
4 PCShColos q pAshHCTTee cI QdI C--s sbuu d llllt
drawn diagonally from one corner to an.
other will lie wholly on the surface. viii
/ be straight line, and viii be the short
est distance between those two points
But the man who has climbed to the
summit of one of those towering noun
tains will know with a certainty thai
nothing can shake, that that line which
/ joins the two corners rs a curve begin
ming at his feet, running into the vale
and then ascending to the summit of the
opposite mountain. What to him vii
be the straight line and shortest dis
tance from the one cliff the other vii
then really be a curve arehed over the
square from corner to corner. Bu
he himself, though gifted with tht
mind of Newton or Pascal
could never discover this, for it il
only by hypothesis that we ourselves
know otherwise. The system of which
he was part would compel him to hole
the straight line to be the curve and The
curve the straight line. Gravitatior
would have done the business for hii
mind. Light. which seems to us tt
come in straight lines, to him would
come in curves, so that, as / said at first
/ l1sax .,l,,