Search results for drag force

Astronomy Mar 21, 2023

Research team finds indirect evidence for existence of dark matter surrounding black holes

Dark matter does not emit or reflect light, nor does it interact with electromagnetic forces, making it exceptionally difficult to detect. Nevertheless, a research team from The Education University of Hong Kong (EdUHK) has ...

Space Exploration Mar 16, 2023

Satellite powered by 48 AA batteries and a $20 microprocessor shows a low-cost way to reduce space junk

Common sense suggests that space missions can only happen with multimillion-dollar budgets, materials built to withstand the unforgiving conditions beyond Earth's atmosphere, and as a result of work done by highly trained ...

Earth Sciences Mar 14, 2023

Can Florida survive climate change? Here's what the Aspen Ideas: Climate conference had to say

Some of the most pivotal climate-change questions—and potential solutions—focus on Florida.

Astrobiology Mar 14, 2023

Study finds ocean currents may affect rotation of Europa's icy crust

Research reveals a new explanation for how the icy shell of Jupiter's moon Europa rotates at a different rate than its interior. NASA's Europa Clipper will take a closer look.

Social Sciences Mar 13, 2023

Syrian earthquake devastated an area that was already a disaster zone—and highlights the vital role of local aid groups

Three weeks after the February 2023 earthquakes struck Turkey and Syria, I stood amid the rubble in Jindires, a devastated Syrian village. An estimated 50,000 people had lost their lives in the two countries by that point, ...

Astronomy Feb 21, 2023

The swan song of a cloud approaching the Milky Way's supermassive black hole

Two decades of monitoring from W. M. Keck Observatory on Mauna Kea in Hawaiʻi reveals a peculiar cloud dubbed X7 being pulled apart as it accelerates toward the supermassive black hole at the center of our Milky Way galaxy.

Political science Feb 21, 2023

A year on, Russia's war on Ukraine threatens to redraw the map of world politics—and 2023 will be crucial

Wars are world-shaping. Beyond their immediate human and physical tolls, wars alter the fates of societies and states; of clans, cultures and leaders. They establish new lines of access to resources and influence, determining ...

Astronomy Feb 16, 2023

Astronomers spot a rogue supermassive black hole hurtling through space leaving star formation in its wake

Supermassive black holes (SMBHs) lurk in the center of large galaxies like ours. From their commanding position in the galaxy's heart, they feed on gas, dust, stars, and anything else that strays too close, growing more massive ...

General Physics Jan 26, 2023

Scientists observe 'quasiparticles' in classical systems for the first time

Starting with the emergence of quantum mechanics, the world of physics has been divided between classical and quantum physics. Classical physics deals with the motions of objects we typically see every day in the macroscopic ...

Polymers Jan 24, 2023

A rainbow of force-activated pigments for identifying stress

Stress isn't just the psychological pressure you feel in response to a looming deadline at work. It is also a description of the physical forces pushing, pulling, or twisting an object, structure, or material. Examples of ...

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