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Rarefaction is the
reduction of an item's density, the
opposite of compression. Like compression,
which can
travel in
waves (sound waves, for instance)...
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Rarefying osteitis is a
general term for a
radiolucent lesion on a
radiograph usually diagnosed as a
periapical abscess or a
periapical cyst. Jalali,...
- centre, which, by reflection,
acquiring the
force and
activity of fire,
rarefy the air, and
immediately kindle such
light and dry
matter as they think...
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becoming earth, and the
thinner portion becoming air again, and then
rarefying back into fire.
Individual souls are part of the same fire as the world-soul...
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poisons was
extremely detrimental to the
harriers themselves, as well as
rarefying their prey, in
particular large insects. The
modification of agricultural...
- "common air" (dry air at
normal atmospheric pressure), dry air of
various rarefication, and a "Torricellian vacuum". From the
striking analogy between the electric...
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alternately pressurizes the
inside and
outside of the opening,
pressurizing and
rarefying the air in the pipe's resonator. The
column of air in the
resonator thus...
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closing the
vocal tract at two
places of
articulation in the mouth. This
rarefies the air in the
enclosed space by
lowering the
tongue and then releasing...
- ʄ ɠ ʛ⟩.
During the
occlusion of the stop,
pulling the
glottis downward rarefies the air in the
vocal tract. The stop is then released. In
languages whose...
- the
enclosed column of air yet, "cause a
series of
condensations and
rarefications by
various means."
Aerophones are one of the four main
classes of instruments...