Search results for Physical Constant

General Physics Apr 15, 2024

Study uses thermodynamics to describe expansion of the universe

The idea that the universe is expanding dates from almost a century ago. It was first put forward by Belgian cosmologist Georges Lemaître (1894–1966) in 1927 and confirmed observationally by American astronomer Edwin Hubble ...

Planetary Sciences Apr 15, 2024

Astrophysicists solve mystery of heart-shaped feature on the surface of Pluto

The mystery of how Pluto got a giant heart-shaped feature on its surface has finally been solved by an international team of astrophysicists led by the University of Bern and members of the National Center of Competence in ...

Quantum Physics Apr 15, 2024

A balanced quantum Hall resistor provides a new measurement method

Researchers at the University of Würzburg have developed a method that can improve the performance of quantum resistance standards. It's based on a quantum phenomenon called Quantum Anomalous Hall effect.

Evolution Apr 15, 2024

Evolution's recipe book: How 'copy paste' errors led to insect flight, octopus camouflage and human cognition

Seven hundred million years ago, a remarkable creature emerged for the first time. Though it may not have been much to look at by today's standards, the animal had a front and a back, a top and a bottom. This was a groundbreaking ...

Astronomy Apr 12, 2024

Fast radio bursts: Research introduces a novel approach to characterize their behavior

Fast radio bursts (FRBs) represent the most intense radio explosions in the universe. Since the first discovery in 2007, FRBs have garnered significant attention, culminating in the 2023 Shaw Prize in Astronomy. With yet ...

Evolution Apr 10, 2024

Flowers may be more ancient than dinosaurs, but scientists can't agree on when they evolved

Flowers may look delicate—but flowering plants, what scientists call angiosperms, are one of the most successful evolutionary organisms on the planet. Including more than 350,000 known species, they dominate the ecological ...

Condensed Matter Apr 10, 2024

Quantum crystal of frozen electrons—the Wigner crystal—is visualized for the first time

Electrons—the infinitesimally small particles that are known to zip around atoms—continue to amaze scientists despite the more than a century that scientists have studied them. Now, physicists at Princeton University ...

Social Sciences Apr 9, 2024

COVID-19 school and daycare closures left working mothers physically and mentally exhausted, study shows

Home-schooling and caring for children during the COVID-19 school and daycare closures left many working mothers physically and mentally exhausted and with little or no time to switch off, a new study shows.

General Physics Apr 8, 2024

A physicist uses X-rays to rescue old music recordings

Researchers are developing a technique that uses the special synchrotron X-ray light from the Swiss Light Source SLS to non-destructively digitize recordings from high-value historic audio tapes—including treasures from ...

Astronomy Apr 7, 2024

The universe's accelerated expansion might be slowing down

The universe is still expanding at an accelerating rate, but it may have slowed down recently compared to a few billion years ago, early results from the most precise measurement of its evolution yet suggested Thursday.

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