英语词汇“centre of friction”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

† centre of friction n. Obsolete rare (a) the point at which the sum total of the frictional forces acting upon a system of bodies revolving around a fixed point can be considered to act; (b) the point on the base of a revolving object at which the object would lose the same amount of angular velocity due to friction were it a point mass.The sense defined in quot. 1885, which was also included in N.E.D. (1889), appears to result from a misunderstanding of sense (b).

ΚΠ

1753 London Monthly Mercury Aug. 273 (heading) A Method for determining the Centre of Friction of several Weights turning round a fixt Point.

1785 S. Vince in Philos. Trans. (Royal Soc.) 75 186 The center of friction is that point in the base of a body on which it revolves, into which if the whole surface of the base, and the mass of the body were collected..the angular velocity destroyed by its friction would be [etc.].

1793 S. Vince Plan of Course Lect. Princ. Nat. Philos. 48 Suppose the initial velocity of the center of friction P about C to be a.

1795 C. Hutton Math. & Philos. Dict. I. (citing Vince) Centre of Friction. [Also in later dictionaries.]

1885 S. Fallows Progressive Dict. Eng. Lang. Center of friction, that point on which anything turns when put in rapid and independent motion; thus the extremity of the peg round which a top spins is the center of friction.]

单词	centre of friction
释义	> as lemmas centre of friction † centre of friction n. Obsolete rare (a) the point at which the sum total of the frictional forces acting upon a system of bodies revolving around a fixed point can be considered to act; (b) the point on the base of a revolving object at which the object would lose the same amount of angular velocity due to friction were it a point mass.The sense defined in quot. 1885, which was also included in N.E.D. (1889), appears to result from a misunderstanding of sense (b). ΚΠ 1753 London Monthly Mercury Aug. 273 (heading) A Method for determining the Centre of Friction of several Weights turning round a fixt Point. 1785 S. Vince in Philos. Trans. (Royal Soc.) 75 186 The center of friction is that point in the base of a body on which it revolves, into which if the whole surface of the base, and the mass of the body were collected..the angular velocity destroyed by its friction would be [etc.]. 1793 S. Vince Plan of Course Lect. Princ. Nat. Philos. 48 Suppose the initial velocity of the center of friction P about C to be a. 1795 C. Hutton Math. & Philos. Dict. I. (citing Vince) Centre of Friction. [Also in later dictionaries.] 1885 S. Fallows Progressive Dict. Eng. Lang. Center of friction, that point on which anything turns when put in rapid and independent motion; thus the extremity of the peg round which a top spins is the center of friction.] extracted from centrecentern.¹adj. < as lemmas
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