Andrew Grant
Science News
Washington, DC, United States
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Past articles by Andrew:
Ultrasmall engines bend second law of thermodynamics
Car engines and batteries run because of the second law of thermodynamics, which appears to work, with just a little bending, for ultrasmall engines in the quantum realm as well. → Read More
Gravity waves from black holes verify Einstein’s prediction
Gravitational waves, tremors in the cosmic fabric of space and time predicted by Einstein a century ago, have finally been detected, opening a new avenue for exploring the universe. → Read More
Dark matter helped destroy the dinosaurs, physicist posits
In ‘Dark Matter and the Dinosaurs,’ Lisa Randall finds connections between particle physics, cosmology, geology and paleontology. → Read More
More tests confirm quantum spookiness
New experimental results confirm and strengthen evidence for the “spooky” reality of quantum physics. → Read More
Acoustic tractor beam reels in objects like the Death Star
A platform tiled with ultrasound-emitting speakers can get small objects to hover, spin, move around and get reeled in as if pulled by a tractor beam. → Read More
Raw chicken, ingenuity make a time-reversal mirror
A new phase-conjugation mirror sends light waves back where they came from, allowing physicists to reconstruct images even if the original light was severely scrambled. → Read More
At last, Voyager 1 slips into interstellar space
Solar blast data provides definitive evidence that Voyager 1 has cruised beyond the heliosphere and into interstellar space. → Read More
Physicists get answers from computer that didn’t run
By exploiting the quirks of quantum mechanics, physicists consistently determined what a quantum computer would have done without actually running the computer. → Read More
Here’s what game theory says about how to win in semifinals
Game theory informs competitors facing off in a semifinal whether to go all out or save energy for the final. → Read More
Like a balloon, peculiar magnet grows and shrinks
A recently discovered alloy of iron and gallium can expand and contract like a balloon when exposed to a magnetic field. → Read More
Electron pairs can take the heat
Electrons have been found pairing up for the first time in a solid that is not in a superconducting state. → Read More
Computer program rivals top poker players in complex card game
A computer program held its own against the world’s best heads-up no-limit Texas Hold’em poker players. → Read More
Quantum experiment dissects wave-particle mash-up
A modified version of a landmark quantum physics experiment has shown that a single parcel of light can be a particle and a wave simultaneously. → Read More
Resistors that remember help circuits learn
Electronic components called memristors have enabled a simple computing circuit to learn to perform a task from experience. → Read More
Explanation for G’s imprecision stumbles
A surprising new result seems to suggest that subtle changes in Earth’s rotation rate could account for physicists’ difficulty in measuring Newton’s gravitational constant. But some confusion with dates appears to derail the finding. → Read More
Cosmic rays illuminate lightning
Radio waves emitted by particles zipping through thunderstorms allow physicists to probe thunderclouds and, perhaps eventually, learn what triggers lightning strikes. → Read More
Atomic clock will keep precise time for 15 billion years
The world’s most precise atomic clock will not lose or gain a second in roughly 15 billion years. → Read More
Cosmic rays misbehave in space station experiment
A puzzling feature in a new cosmic ray census may force physicists to rethink which cosmic objects send these speedy particles hurtling across the galaxy. → Read More
Ringing rings reveal Saturn’s innards
Scientists propose that exotic structures are buried within Saturn, based on analyses of subtle vibrations in the planet’s rings. → Read More
Galactic split provides clue to dark matter mystery
An oddly divided galaxy may provide the first evidence that dark matter particles interact through a force other than gravity. → Read More