A vector quantity whose magnitude is proportional to the amount or speed of a rotation, and whose direction is perpendicular to the plane of that rotation (following the right-hand rule). Spin vectors, for example, are rotation vectors.
Take A Ride Around The World On These Unusual TransportsOne way to get to know a country is through its food. Another way is by using the country’s public transportation. Some unique modes of transportation are just for fun, like dog-sledding trips in Norway and zorbing in New Zealand (which involves rolling down a hill inside a giant inflatable ball, just saying). Other means of transportation are more practical . . . here’s a …
“Daylight Savings Time” And More Commonly Mixed-Up WordsEvery March and November, most Americans change their clocks to keep up with the switch into or out of daylight-saving time. This practice of advancing the clocks ahead an hour is called daylight-saving time. But, because daylight savings time is used so frequently, the term is also considered acceptable. Daylight saving time means that since the clock is moved ahead one hour, you get one …
- rotation axis,
- rotation flap,
- rotation of axes,
- rotation-inversion axis,
- rotational molding,
- rotational nystagmus,
- rotational quantum number
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.