March 14 is often celebrated at Pi Day, but it's also the birthday of one of our greatest scientists whose work impacts us ...

Here’s a fun video by [Ashish Derhgawen], discussing the photoelectric effect of neon lamps with some simple demonstrations. Orange light makes it light! [Ashish] demonstrates the well-known ...

Light was long considered to be a wave, exhibiting the phenomenon of interference in which ripples like those in water waves ...

Albert Einstein shook up physics by proposing that light wasn’t just a wave, but it could also behave like a collection of ...

Physicists have uncovered a new quantum phenomenon, proving for the first time that electrons can form vortex-like structures ...

Einstein's description of the photoelectric effect, also known as photoionization, laid the theoretical foundation for ...

Researchers have experimentally demonstrated a quantum tornado. Electrons form vortices in the momentum space of the quantum semi-metal tantalum arsenide.

Scientists experimentally confirm electron vortices in momentum space, a quantum phenomenon that could enable efficient, ...

Wave particle duality The photoelectric effect shows that light is made up of individual photons. Photoemissions will take place if photons have a high enough frequency and have enough energy.