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 vacuum, which they simply …

What is the difference between smart and clever? As far as I understand the latter is offensive. But the Cambrige Dictionary gives similar definitions of smart and clever.

According to the Free Dictionary, you have it backwards: rustling refers to the movement, and the sound is thus implied. Personally I associate the word so strongly with both the movement and the sound …

Jan 27, 2017 · Generalization of meaning: Upward shift in a taxonomy, e.g., hoover "Hoover vacuum cleaner" → "any type of vacuum cleaner". Cohyponymic transfer: Horizontal shift in a taxonomy, e.g., …

Yes, the words "that that" can appear in a grammatically correct sentence. The first "that" is a relative pronoun (typically used to clarify something), and the second "that" is a demonstrative pronoun …

Apr 28, 2018 · I noticed Robin Michael, who is on this site, stated she learned to spell the word 'vacuum' as "vacumn". I was also taught the same thing in school around 40 years ago; I always scored the

I'm looking for a similar phrase to: "one man's trash is another man's treasure." Any help would be appreciated.

May 5, 2021 · A big part of spring cleaning in the 19th and early 20th century, when carpets had become widespread but vacuum cleaners had not, was the process of taking carpets outside, hanging them …

Nov 8, 2017 · For example, when you get those weird chewy caramel things on Halloween; given out of kindness but really no good. I'm thinking of something that is a "false gift", almost like the inverse of a …

Sep 24, 2022 · I am currently working on a paper that involves describing the conditions under which a rover sent to a celestial body (eg. the moon) operates. As a part of that, I want to say, The body of …