Science for the School and Family, Part I. Natural Philosophy — John Shaqi
Science for the School and Family, Part I. Natural PhilosophyHooker, Worthington
Science
Science for the School and Family, Part I. Natural Philosophy
Hooker, Worthington
Physics; Science
How do such facts extend our views of the power of the Deity! The
same power that moulded the earth, sun, moon, and the whole "host
of heaven," gave form, and life, and motion to the millions which
sport in every sunbeam; the same eye that watches the immense
heavenly bodies as they move on in their course, looks upon one and
all of these legions of animals in earth, air, and water, though
they are unseen by human eyes, seeing that every particle shall
take its right position, so that this part of creation may with all
the rest be pronounced very good; and the same bountiful hand that
dispenses the means of life and enjoyment to the millions of the
human race, forgets not to minister to the brief life and enjoyment
of each one of these myriads of animalcules, though they seem to be
almost nothingness itself.
20. =Pores and Spaces in Matter.=--In all matter there are spaces
about the particles. Those bodies which are called porous have
quite large spaces in them. But even in those which are not
commonly considered porous the particles are by no means close
together. A celebrated experiment tried in Florence a long time
ago showed that there are spaces among the particles of so dense
a substance as gold sufficiently large to let water through them.
A hollow golden globe containing water was subjected to great
pressure, and its surface was bedewed with the water that came out
through the pores of the gold. In all substances in which there are
pores visible to the naked eye, or by the aid of the microscope,
there are other spaces or interstices among the particles around
the pores. Indeed, it is supposed that there is space around every
ultimate particle or atom, and that no two of these atoms are
in actual contact. The fact that substances which have no pores
can be compressed into a smaller space than they usually occupy
shows that there are spaces or interstices in them. Solids can be
thus compressed, some more than others. But the most compressible
substances are the gases and vapors. The amount of space between
their particles must be very large to allow of so great compression.
[Illustration: Fig. 1.]
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