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Sam Jarman

Sam Jarman

Author

Sam is a freelance science writer who spends most of the year juggling between writing and travelling the world. He has a lifelong interest in astrophysics, but is also fascinated by fast-growing fields in physics including novel materials, medical imaging, and bio-inspired technologies. He also contributes to outlets including Physics World and APS Physics Magazine.

Articles by Sam Jarman

Tech Xplore / Atom-thin material could overcome key transistor bottleneck for next-generation computer chips

If computer chips could be built from semiconductors just one atom thick, they could pack far more transistors into a smaller space while using less power. So far, however, the technology has been held back by the weakness ...

15 hours ago
Phys.org / Visible light does not speed up water evaporation, rigorous experiments suggest

In recent experiments involving hydrogels and water droplets, researchers have proposed that exposure to visible light could make water evaporate faster without heating it. However, direct evidence that light acts on water ...

Oct 3, 2026
Phys.org / Hidden 'funnels' let complex systems slip between stable states

Many systems in nature can settle into several different stable states, with the final state depending on their starting conditions. However, the boundaries separating these states are often far more complicated than they ...

Oct 1, 2026
Phys.org / Laser-made muons produce first images of dense objects

Muons are constantly being created as cosmic rays collide with molecules in Earth's upper atmosphere. With their ability to penetrate far into dense, solid materials, these cosmic muons are often used to image the insides ...

Sep 30, 2026
Phys.org / Peeling crust beneath Italy's Apennines may explain why mountains stretch and squeeze

Extending some 1,200 kilometers (750 miles) along the length of Italy, the Apennine Mountains present a challenging puzzle for geologists. In some places, the mountains are steadily being stretched apart, while in regions ...

Sep 29, 2026
Phys.org / DarkSide detector puts 'nuclear' dark matter to the test

Researchers at the DarkSide collaboration have unveiled results from a seven-year experiment that tested whether dark matter particles could exist as composites of smaller, elementary particles. While the search turned up ...

Sep 28, 2026
Phys.org / Whirlpool in a water tank reveals long-predicted wave turbulence

When water drains from a bathtub, a whirlpool often forms above the drain, and its narrow core can start to wobble and twist. For almost 150 years, physicists have predicted that these wobbles can become turbulent, passing ...

Sep 24, 2026
Phys.org / Carbon nanotube foams reveal a new kind of mechanical memory

In their earliest years of development, computers used mechanical gears and levers to store information. Today, researchers are exploring whether a material itself can hold onto information, storing memory in how it bends ...

Sep 22, 2026
Phys.org / Nuclear-spin swap extends room-temperature entanglement lifetime up to 240-fold

Researchers in China have extended the lifetime of entanglement in a room-temperature, solid-state system by up to a factor of 240. Led by Shuo Ren and Rui-Jian Liang at the University of Science and Technology of China in ...

Sep 21, 2026
Phys.org / Asteroid Ryugu's dust reveals nitrogen's slow concentration into complex molecules

Nitrogen is a key ingredient in the biomolecules that form the building blocks of life. Yet as an unbonded gas, it is far more likely to drift into space than to lock itself into solid compounds, making it difficult for astronomers ...

Sep 10, 2026
Phys.org / A new game demonstrates quantum advantage with provable classical limits

For decades, physicists have worked to prove the strange predictions of quantum mechanics with real experiments. As quantum computers have grown more powerful, researchers have devised increasingly sophisticated ways to test ...

Sep 8, 2026
Phys.org / Entangled particles revive a 35-year-old test of the Standard Model

Physicists at the BESIII Collaboration have breathed new life into a decades-old test of one of the Standard Model's most important ideas, using a technique that had gone almost untouched by experimenters for 35 years.

Sep 7, 2026
Phys.org / Betelgeuse's atmosphere is becoming spotty and asymmetric—and a nearby companion could be shaping the pattern

For the first time since its dramatic dimming in 2020, a team of astronomers has observed the inner atmosphere of Betelgeuse using the Atacama Large Millimeter Array (ALMA). Led by Bill Dent at the University of Manchester, ...

Sep 4, 2026
Phys.org / The biggest black hole merger ever observed could be less massive than it appears

Gravitational waves are ripples in spacetime created when pairs of black holes spiral into each other and eventually merge. But if this ripple has been warped by another massive object on its way to Earth, a new analysis ...

Sep 3, 2026
Phys.org / Physicists test the weak equivalence principle in an orbiting space station

The weak equivalence principle (WEP) is central to Einstein's general relativity. It posits that gravity must accelerate everything equally, regardless of what it is made from. For the first time, a team led by Ming-Sheng ...

Sep 2, 2026