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安裝中文字典英文字典辭典工具!
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- Who changed the way vacumn was spelled 40 years ago?
vacuum: 725,895 matches; earliest confirmed match from the Sydney Gazette and New South Wales Advertiser (July 10, 1803): The walls of the New Bridge are already raised nearly five feet, and are 24 feet asunder, which vacuum will be filled by a solid mound ; and the span of the Arch likewise measures 24 feet
- pronunciation - Why is vacuum pronounced [ˈvæ. kjuːm] and not [ˈvæ . . .
By the way, Merriam-Webster's Eleventh Collegiate Dictionary (2003) continues to list a three-syllable pronunciation of vacuum as a secondary (or tertiary) pronunciation of the word, and as late as Webster's New International Dictionary (1909), the dictionary doesn't even bother to provide a pronunciation independent of its prescribed syllable division, presumably because the people at Merriam
- differences - English Language Usage Stack Exchange
There's also vacuum Volume with extremely little matter in it Volume with extremely little matter in it 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 is considered vacuum
- Can I call a vacuum cleaner cleaner a vacuum cleaner?
A useful workaround here: simply say "a cleaner of vacuums" (or "a cleaner of vacuum cleaners") "Vacuum cleaner" is a fading usage, at least in my dialect of English (in Canada we are likely to just call it a "vacuum"), but enough use the compound that it is confusing to employ it for any other usage
- What does programming in a vacuum mean? - English Language Usage . . .
Physicists often discuss ideal test results that would occur in a perfect vacuum, which they simply call "vacuum" or "free space", and use the term "partial vacuum" to refer to real vacuum The idea of doing an activity, such as programming, in a vacuum , can refer to the idea of doing it without a surrounding environment or without context and
- Where is the root morpheme in Modern English evacuate and vacuum?
@Ham and Bacon: There are words like evacuated and vacuumed which might have been produced in English There are shortenings such as evac and vac which can mean much the same thing, and at some stage the shortenings may be expanded into something else
- Gap, void or vacuum? - English Language Usage Stack Exchange
Considering their primary meanings, vacuum is used more often in a scientific context, in which case it means space completely or partially absent of any matter air It is a scientific term, while void can be used non-technically in a more abstract sense, but it can also be used when talking about empty space in a non-scientific way
- Electronic vs. electric - English Language Usage Stack Exchange
A simple vacuum tube, a triode, with its heated cathode Source As expected with an insulator, electrons cannot move in vacuum, there is no electric current, the impatient electrons must stay on their wire! However, in a vacuum tube there is a way to transfer more energy to the heated electrons packed on the cathode
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