Englishfor English speakers
pendulum
—
noun
an apparatus consisting of an object mounted so that it swings freely under the influence of gravity
contact
Noun
—
When mathx/math makes or has contact with mathy/math, they touch each other physically.
The trains in Tokyo are so crowded that everyone has to stand in close contact to everyone else.
—
By extension, its use as a metaphor:
He wore dark glasses so that he wouldn't have to make eye contact with anyone.
"Did you tell Chris about lunch today?" "No, I wasn't able to get in contact with him."
contact
Verb
—
If A contacts B, A telephones B or writes a letter or e-mail to B.
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