There's still a symmetry, and still a conserved quantity, but it's not the same collection of stuff that we call "energy" in upper-level physics, let alone introductory mechanics.

A gap in the energy levels of positronium seems to be substantially larger than predicted, ... Senior physics writer Emily Conover has a Ph.D. in physics from the University of Chicago.

Different chemical elements have different energy level spacings, so we can work out the constituents of the sun and other stars from the precise colors that are absent. 6. Without it the sun ...

One of the fundamental aspects of physics is the study of light and how that interacts with matter. I have been putting off this post - mainly because I am not a quantum mechanic (I am a classical ...

Scientists are using trapped ions in cutting-edge experiments to hunt for signs of an undiscovered particle that might help ...

Researchers have gained new insights into the energy states of quantum dots. They are semiconductor nanostructures and promising building blocks for quantum communication. With their experiments ...

High-energy cosmic rays are extremely rare to begin with, but Fujii said the Amaterasu particle has an energy level not seen in a staggering 30 years of cosmic ray detections.

The detector is set to run at its highest energies yet. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The Large Hadron Collider has been ...