The direction in which spin information is injected into chiral materials affects its ability to pass through them. These chiral 'gateways' could be used to design energy-efficient spintronic devices ...

The typical ceiling fan in your home has a few familiar settings for speed and lights, plus one more that might not be so intuitive. Usually located near the motor is a switch that tells the fan which ...

One aspect of this question seems not to have been addressed. Spiral galaxies spin, we are told, and their direction of spin depends upon our perspective, of course. But do the outer points of the ...