Search results for drag force

Optics & Photonics Jun 6, 2024

Study of photons in quantum computing reveals that when photons collide, they create vortices

Vortices are a common physical phenomenon. You find them in the structure of galaxies, tornadoes and hurricanes, as well as in a cup of tea, or water as it drains from the bathtub.

Social Sciences Jun 4, 2024

Q&A: Researcher investigates how LGBTQ people are treated by law enforcement

June is Pride Month, which commemorates the 1969 Stonewall Inn uprisings in Manhattan that brought the civil rights of LGBTQ+ people to the fore.

Mathematics May 31, 2024

How science, math, and tech can propel swimmers to new heights

One hundred years ago, in the 1924 Paris Olympics, American Johnny Weissmuller won the men's 100m freestyle with a time of 59 seconds. Nearly 100 years later, in the most recent Olympics, the delayed 2020 Games in Tokyo, ...

Astronomy May 25, 2024

First proof that 'plunging regions' exist around black holes in space

An international team led by researchers at Oxford University Physics have proved Einstein was correct about a key prediction concerning black holes. Using X-ray data to test Einstein's theory of gravity, their study gives ...

Astronomy May 22, 2024

Astronomers observe jet reorientation in 'Death Star' black holes

Huge black holes are firing powerful beams of particles into space—and then changing their aim to fire at new targets. This discovery, made using NASA's Chandra X-ray Observatory and the U.S. National Science Foundation ...

Astronomy May 22, 2024

Using wobbling stellar material, astronomers measure the spin of a supermassive black hole for the first time

Astronomers at MIT, NASA, and elsewhere have a new way to measure how fast a black hole spins, by using the wobbly aftermath from its stellar feasting.

General Physics May 14, 2024

'Dancing' raisins: A simple kitchen experiment reveals how objects can extract energy from their environment

Scientific discovery doesn't always require a high-tech laboratory or a hefty budget. Many people have a first-rate lab right in their own homes—their kitchen.

Planetary Sciences May 9, 2024

TESS discovers a rocky planet that glows with molten lava as it's squeezed by its neighbors

UC Riverside astrophysicist Stephen Kane had to double-check his calculations. He wasn't sure the planet he was studying could be as extreme as it seemed.

Ecology May 8, 2024

Human activity is making it harder for scientists to interpret oceans' past

New research shows human activity is significantly altering the ways in which marine organisms are preserved, with lasting effects that can both improve and impair the fossil record. The findings are published in the journal ...

Ecology Apr 25, 2024

How do birds flock? Researchers do the math to reveal previously unknown aerodynamic phenomenon

In looking up at the sky during these early weeks of spring, you may very well see a flock of birds moving in unison as they migrate north. But how do these creatures fly in such a coordinated and seemingly effortless fashion?

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