Physics
Energy may seem to disappear, but there’s a law against that
When a ball rolls to stop or a phone battery dies, it’s energy didn't vanish — it just morphed to another form. Energy is always conserved.
Energy
More Stories in Energy
- Animals
Weird? These bat toes can glow greenish-blue
Hairy bristles on the toes of Mexican free-tailed bats fluoresce under UV light. The reason is a mystery.
- Earth
As Yellowstone’s supervolcano slumbers, another big danger lurks
Superheated water beneath Yellowstone could fuel hydrothermal explosions with the force of an atomic bomb. And lessons from the past suggest they could happen today.
- Materials Science
Scientists Say: Semiconductor
Modern electronics, from cell phones to video games, work thanks to these conductor-insulator hybrids.
- Tech
Artificial intelligence helped design a new type of battery
Supercomputing and AI cut the early discovery steps from decades to just 80 hours. The process led to a new solid electrolyte.
- Physics
Physics explains why poured water burbles the way it does
The loudness of falling water depends on the height of the pour and the thickness of the stream.
- Artificial Intelligence
To ‘green’ AI, scientists are making it less resource-hungry
Energy demands of ChatGPT and similar AI tools can threaten Earth’s climate. So researchers have begun redesigning how to run data centers and build AI.
- Physics
Experiment: Where does a bouncing basketball’s energy go?
Let’s explore whether energy loss to heat could explain why a basketball doesn’t bounce back to its original height.
- Physics
Heat makes water evaporate. Now it appears light can, too
In the lab, shining light on water made it evaporate faster. This never-before-seen effect, if real, might be happening naturally all around us.
- Physics
Experiment: How well do different materials create static electricity?
Why are some materials more susceptible to static cling than others? Investigate by making your own electroscope.
