spin-up


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spin-up

[′spin·əp]
(astronomy)
A sudden increase in the pulse frequency of a pulsar.
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"This analogy describes the concept behind the accepted theory of why pulsars suddenly increase speed or 'spin-up'.
"There are short spin-ups, pockets of heavy rain and damaging winds that can still hit before this pushes off shore," Hurley said.
If you turn off the traction control then you're into lairy rear-wheel spin-ups in no time on anything other than a dry, sticky road.
"I ask the National Weather Service to consider stopping the use of tornado warnings when trying to catch small spin-ups within a squall line (or QLCS)," Spann wrote in his blog.

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