Squinting with my right eye at the image in the right-hand mirror, with
my left eye at the image in the left-hand mirror, my vision will be the
vision of a giant having an enormous head with his two eyes set far
apart. This, also, is the impression which my own face makes upon me. I
see it now, single and solid. Fixing my gaze, the relief from second to
second is magnified, the eyebrows start forth prominently from above the
eyes, the nose seems to grow a foot in length, my mustache shoots forth
like a fountain from my lip, the teeth seem to retreat immeasurably. But
by far the most horrible aspect of the phenomenon is the nose.
Interesting in this connexion is the telestereoscope of Helmholtz. In
the telestereoscope we view a landscape by looking with our right eye
(Fig. 24) through the mirror _a_ into the mirror _A_, and with our left
eye through the mirror _b_ into the mirror _B_. The mirrors _A_ and _B_
stand far apart. Again we see with the widely separated eyes of a giant.
Everything appears dwarfed and near us. The distant mountains look like
moss-covered stones at our feet. Between, you see the reduced model of a
city, a veritable Liliput. You are tempted almost to stroke with your
hand the soft forest and city, did you not fear that you might prick
your fingers on the sharp, needle-shaped steeples, or that they might
crackle and break off.
[Illustration: Fig. 24.]
Liliput is no fable. We need only Swift's eyes, the telestereoscope, to
see it.
Picture to yourself the reverse case. Let us suppose ourselves so small
that we could take long walks in a forest of moss, and that our eyes
were correspondingly near each other. The moss-fibres would appear like
trees. On them we should see strange, unshapely monsters creeping about.
Branches of the oak-tree, at whose base our moss-forest lay, would seem
to us dark, immovable, myriad-branched clouds, painted high on the vault
of heaven; just as the inhabitants of Saturn, forsooth, might see their
enormous ring. On the tree-trunks of our mossy woodland we should find
colossal globes several feet in diameter, brilliantly transparent,
swayed by the winds with slow, peculiar motions. We should approach
inquisitively and should find that these globes, in which here and there
animals were gaily sporting, were liquid globes, in fact that they were
water. A short, incautious step, the slightest contact, and woe betide
us, our arm is irresistibly drawn by an invisible power into the
interior of the sphere and held there unrelentingly fast! A drop of dew
has engulfed in its capillary maw a manikin, in revenge for the
thousands of drops that its big human counterparts have quaffed at
breakfast. Thou shouldst have known, thou pygmy natural scientist, that
with thy present puny bulk thou shouldst not joke with capillarity!
Public-domain text, read in full here on John Shaqi.
Reviews
Reviews
No reviews yet
Be the first to share your thoughts on this work.
Join the Discussion
Join the discussion
Sign in to leave a comment or review.
Sign InorCreate an account