Physics
Here’s how to levitate something without magic
Levitation may seem like fantasy. But all it takes is a little physics — and sound waves, magnetism or electricity.
Physics
More Stories in Physics
- Earth
Scientists Say: Van Allen belts
Astronomers have detected these radiation belts around Earth and beyond. Jupiter’s belt is thousands of times as intense as Earth’s.
- Physics
Why are skis so long?
Let’s strap skis to an action figure to see how long sticks of wood help people glide gracefully over snow.
- Physics
Scientists Say: Blue whirl
Four types of smaller flames create the perfect firestorm of elegantly efficient combustion.
- Physics
Scientists shrink 3-D printing so it can work inside cells
The new tech created barcodes, micro-lasers and a tiny elephant — all in living cells.
- Physics
This microphone picks up sounds by watching them
This microphone can “hear” by viewing the tiny vibrations made in everyday objects as sound waves strike them.
- Tech
A modified glue gun squirts a material to help heal broken bones
The handheld printer might someday apply bone-repair patches directly onto fractures — complete with antibiotics to prevent infection.
- Space
Scientists caught a black hole ringing like a bell
Two black holes merged, creating a new, bigger one. This event triggered the clearest ripples in spacetime ever observed.
- Earth
These ultra-long experiments outlive their scientists — on purpose
To study phenomena that unfold over decades or even centuries, scientists may launch projects they may never see finished.
- Chemistry
New materials yank ‘forever chemicals’ from water
Materials known as metal-organic frameworks, or MOFs, trap some PFAS fast — and can be reused again and again.
