Rotational dynamics explained through a 1935 physics textbook. Explore classic diagrams and timeless explanations that break down torque, angular motion, and rotational principles in a clear, ...

The rotation of stars in galaxies such as our Milky Way is puzzling. The orbital speeds of stars should decrease with their distance from the center of the galaxy, but in fact stars in the middle and ...

Fig. 1 The measured time-resolved KER spectrum (A) and the measured photoion momentum distributions at different delays (B) of O2 molecules. The coupled electronic and nuclear motions within a single ...