Search results for drag force

Astronomy May 31, 2023

NIRISS instrument on Webb maps an ultra-hot Jupiter-like exoplanet's atmosphere

400 light-years out there is something that is so tantalizing that astronomers have been studying it since its discovery in 2009. One orbit for WASP-18 b around its star that is slightly larger than our sun takes just 23 ...

Condensed Matter May 19, 2023

When crystals flow: Semicrystalline polymer shown to flow at temperatures below its melting point

Semicrystalline polymers are solids that are assumed to flow only above their melting temperature. In a new study published in Science Advances, Chien-Hua Tu and a research team at the Max Planck Institute for Polymer Research ...

Evolution May 18, 2023

Perfection: The enemy of evolution

Scientists are often trained to seek out the absolute best solution to a given problem. On a chalk board, this might look something like drawing a graph to find a function's minimum or maximum point. When designing a turbojet ...

Social Sciences May 17, 2023

New book asks whether the benefits of AI will be shared widely or feed inequality

The Dark Ages were not entirely dark. Advances in agriculture and building technology increased Medieval wealth and led to a wave of cathedral construction in Europe. However, it was a time of profound inequality. Elites ...

Astronomy May 16, 2023

Temperature of solar flares helps understand nature of solar plasma

The sun's rotation produces changes in its magnetic field, which flips completely every 11 years or so, triggering a phase of intense activity. Solar flares—huge eruptions from the surface of the sun lasting minutes or ...

Planetary Sciences May 10, 2023

One in ten stars ate a Jupiter-sized planet, suggests paper

In space, cataclysmic events happen to stars all the time. Some explode as supernovae, some get torn apart by black holes, and some suffer other fates. But when it comes to planets, stars turn the tables. Then it's the stars ...

Soft Matter Apr 25, 2023

Improving bloodstain pattern analysis with fluid dynamics

Often left on the surfaces of a crime scene or on the clothes of an accused criminal, blood backspatter can be used as evidence for forensic scientists to reconstruct what occurred. However, the fluid dynamics at play are ...

Ecology Apr 20, 2023

2030 nature targets agreed in December may already be slipping out of reach

As recently as December 2022, 196 countries signed an agreement promising to "live in harmony with nature" by 2050 and to "halt and reverse biodiversity loss" by 2030.

Plants & Animals Apr 3, 2023

Monk parakeets shown to lose social standing during an absence

Monk parakeets take that saying to heart, according to new research by the University of Cincinnati.

Environment Mar 31, 2023

The coming flood: Meet the flood watchers

Floods in California rarely attract the sort of attention that earthquakes, wildfires or even shark attacks do. Perhaps it has something to do with the severity of an unprecedented, yearslong drought that is far from over. ...

page 8 from 40