Sentences with phrase «internal rotational motion»
In the 1910s and 1920s, Adriaan Van Maanen, an astronomer at Mount Wilson Observatory and friend of Shapley's, measured the internal rotational motion of several spiral nebulae.
https://apod.nasa.gov/ Not exact matches
However, there is also a temperature for the internal vibrations of a molecule, as well as for the rotational motion around their own axes.