Physics
- Physics
A laser gyroscope measured tiny variations in the lengths of days on Earth
An underground gyroscope known as ‘G’ uses laser beams traveling in opposite directions to precisely measure Earth’s rotation.
- Physics
Scientists have two ways to spot gravitational waves. Here are some other ideas
From lasers in space to falling atoms on Earth, researchers are cooking up ways to sense gravitational waves that current methods can’t detect.
- Particle Physics
Scientists finally detected oxygen-28. Its instability surprised them
The elusive isotope was predicted to be very stable, thanks to “magic” numbers of neutrons and protons. It fell apart almost immediately.
- Physics
Filipino math teacher Emma Rotor helped develop crucial WWII weapons tech
Devoted wife of a famed Filipino writer, Emma Unson Rotor worked on the proximity fuze at a U.S. agency in the 1940s.
- Physics
Superconductor research surges forward despite controversy over stunning claims
After retractions from Ranga Dias’ group, high-pressure physicists are feeling the squeeze, fearing the controversy will tarnish other research.
- Health & Medicine
50 years ago, X-rays provided an unprecedented look inside the brain
CT scans can now image the whole body and are even used in other scientific fields such as archaeology, zoology and physics.
- Chemistry
Chemists turned plastic waste into tiny bars of soap
Researchers developed a process to turn plastic waste into surfactants, the key ingredients in dozens of products, including soap.
- Chemistry
Magnetic ‘rusty’ nanoparticles pull estrogen out of water
Iron oxide particles adorned with “sticky” molecules trap estrogen in water, possibly limiting the hormone’s harmful effects on aquatic life.
- Physics
How to run a marathon in under two hours
Running between other people reduces air resistance. A new study identifies optimal positioning of such drafting formations. Watch out, marathon records.
- Particle Physics
There’s a new measurement of muon magnetism. What it means isn’t clear
The measurement, from the Muon g−2 experiment, is the most precise yet. But recent theoretical predictions are a bit muddled.
- Physics
Centuries on, Newton’s gravitational constant still can’t be pinned down
A new experiment could finally answer the question 'What is the strength of gravity?' But it's a hard test to do.
- Physics
Mass has different definitions. The moon’s orbit confirms two are equivalent
Laser measurements of the moon’s orbit square with Newton’s third law of motion and Einstein’s theory of gravity.
