Search results for second law of motion

Education Apr 8, 2024

Earth, the sun and a bike wheel: Why your high-school textbook was wrong about the shape of Earth's orbit

If you've ever been taught about how Earth orbits around the sun, you might well think our planet travels along an oval-shaped path that brings it much closer to the sun at some times of the year than at others. You'd have ...

Plants & Animals Apr 3, 2024

Extinction risk to southern resident orcas accelerating as researchers raise alarm

Orca scientist Rob Williams always thought that conservation was a knowledge problem, that once science showed why a species was declining, people would fix it.

Education Mar 20, 2024

A century ago, one state tried to close religious schools

Almost 100 years ago, a group of nuns joined a suit against the state of Oregon—and made it all the way to the U.S. Supreme Court.

General Physics Mar 7, 2024

Classifying quantum secrets: Pendulum experiment reveals insights into topological materials

A recent study conducted at Tel Aviv University has devised a large mechanical system that operates under dynamical rules akin to those found in quantum systems. The dynamics of quantum systems, composed of microscopic particles ...

Space Exploration Feb 28, 2024

Research on dynamics and FNTSM control of spacecraft with a film capture pocket system

In recent years, with the significant increase in space launch activities, the number of deorbited spacecraft has sharply risen, posing a serious impact on both active orbiting spacecraft and future space activities. Traditional ...

Planetary Sciences Feb 21, 2024

Possible atmospheric destruction of a potentially habitable exoplanet

Astrophysicists studying a popular exoplanet in its star's habitable zone have found that electric currents in the planet's upper atmosphere could create sufficient heating to expand the atmosphere enough that it leaves the ...

Condensed Matter Jan 26, 2024

Physicists identify a surprising phenomenon of aging in materials over time

Physicists in Darmstadt are investigating aging processes in materials. For the first time, they have measured the ticking of an internal clock in glass. When evaluating the data, they discovered a surprising phenomenon.

Environment Jan 5, 2024

Their land is sinking: Farm barons defy calls to cut groundwater pumping

In 2023, as floodwaters rushed toward the San Joaquin Valley city of Corcoran—home to roughly 20,000 people and a sprawling maximum-security state prison—emergency workers and desperate local officials begged the state ...

Environment Dec 19, 2023

Grenfell should have been a wake-up call—but the UK still doesn't take fire safety seriously

In March 2023, a fire in Tower Hamlets, east London, claimed the life of Mizanur Rahman, a 41-year-old father-of-two from Bangladesh. Five fire engines and 35 firefighters attended the call to the two-bedroom flat in Maddocks ...

Space Exploration Nov 2, 2023

Scientists describe deployment of three-body chain-type tethered satellites in low-eccentricity orbits

Recently, the tethered satellite system (TSS) has been used in Earth observations, space interferometry and other space missions, due to its potential merits. The tethered TSAR (tomographic synthetic aperture radar) system ...

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