An international team has developed spherical colloidal particles for the visualization of rotational dynamics. The two-color fluorescent particles have an off-center core that allows tracking of ...

Scientists from Germany, Japan, and India have demonstrated that femtosecond laser pulses can force an entire layer of molecules to rotate in unison on a two-dimensional quantum material, a result ...

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 they all have the same ...