Traditional photonic sensing based on the change of balanced reflection of photonic structures can hardly distinguish chemical species with similar refractive indices. Here a sensing method based on ...

Grain boundaries determine how strong a material is: the more grain boundaries, the stronger the material. Grain boundaries move through a material, but how this movement works had until now remained ...

A new study demonstrates that certain incised stone artifacts from the Levantine Middle Paleolithic, specifically from Manot, Qafzeh, and Quneitra caves, were deliberately engraved with geometric ...

Optical illusions are a fun and interesting way to challenge our brains and sharpen our observation skills. Sometimes, what we see at first glance is not the complete picture. There are hidden within ...