Swans on Tea

Stopping and Freezing a Bullet
Well, not so much a bullet as pretty much any paramagnetic atom (which means most atoms). Reminiscent of Sisyphus cooling only with really big magnetic pulses instead of polarization gradients.
The principle is similar to coilguns being developed by the military to launch projectiles, only “in reverse,” Raizen says. To those [...]

Physical Review Letters is celebrating its Z=79 anniversary, and highlighting important letters. This week is:
Letters from the Past — A PRL Retrospective: This week’s Milestone Letter was originally published in 1970
Acceleration and Trapping of Particles by Radiation Pressure
A. Ashkin Phys. Rev. Lett. 24, 156 (1970)
This was a description of radiation pressure on transparent [...]