differences
The vacuum tube was soon replaced by semi-conductor materials. The technology was named solid state electronics because, semi-conductor materials, like vacuum, are
The vacuum tube was soon replaced by semi-conductor materials. The technology was named solid state electronics because, semi-conductor materials, like vacuum, are
Perfect vacuum does not exist - there will always be some energy, some particles manifesting themselves spontaneously from quantum uncertainty, but generally lack of matter, including air
Clearly they are related through Latin, from e- and vacare (out of and to empty) and from vacuus (empty), and in Latin the shared morpheme is vac-. More interesting may be the
A perfect vacuum would be one with no particles in it at all, which is impossible to achieve in practice. Physicists often discuss ideal test results that would occur in a perfect
Most of the "she" style labels I hear are half terms of endearment and half self mockery. I wouldn''t be surprised in the slightest if a man referred to a vacuum cleaner as "she"
According to the Online Etymological Dictionary, vacuum entered English in the 1540s directly from Latin as the substantivized, neuter form of the adjective vacuus. The
Is it necessary to put an article before the word "vacuum" and if necessary, why?
What''s the difference between at hand, on hand and in hand? At hand seems to me as if you have something in reach. On hand is if you have something in stock. And in hand can be used as if
+1 It seems that vacuum is the odd word out when placed in a lineup with (for example) continuum, individuum, menstruum, and residuum. I don''t know why the -uum in
If a ''vacuum cleaner cleaner'' is a machine for cleaning vacuum cleaners, then the person who cleans the vacuum cleaner cleaner would be a ''vacuum cleaner cleaner cleaner''.
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