Physics
- Physics
Rubidium atoms used to record coldest temperature — ever
A swarm of rubidium atoms has been cooled to about 50 trillionths of a kelvin, making it the coldest substance ever measured.
- Particle Physics
Exotic particle turns out to be quark molecule
Subatomic particles made of quarks can bind together to form molecules, according to a computer simulation of a long-studied mysterious particle.
- Materials Science
A new spin on guiding sound waves along a one-way route
A proposed acoustic topological insulator made of an array of spinning metal rods would channel sound waves in one direction along its edge, preventing any sound from bouncing away.
- Materials Science
Suds turn silver nanoparticles in clothes into duds
Bleach-containing detergents destroy antibacterial silver nanoparticles that coat clothes.
- Chemistry
Idea for new battery material isn’t nuts
Baking foam peanuts at high heat can form wee structures that lure lithium ions and could make for cheaper, more powerful batteries.
- Quantum Physics
One photon wrangles 3,000 atoms into quantum entanglement
A single photon can trigger the creation of quantum entanglement between thousands of atoms.
- Psychology
Rethinking light’s speed, helping young adults with autism and more reader feedback
Readers discuss the best ways to replicate findings in scientific studies, help teenagers with autism transition to adulthood, and more.
- Quantum Physics
Quantum links provide clues to causation
Quantum entanglement enables physicists to determine cause and effect just by tracking the association between two measurements.
- Tech
‘Rust’ chronicles humankind’s incessant battle with corrosion
‘Rust’ recounts humanity’s unending battle against corrosion, which each year costs the United States an estimated $437 billion — more than all natural disasters combined.
- Animals
Snail shell creates blue iridescence with mineral
Mollusk shines blue using calcium compound rather than organic molecule.
- Chemistry
New method leaves older ways of 3-D printing in its goopy wake
Finding the sweet spot in a pool of resin, chemists can create detailed 3-D objects faster than 3-D printers.
- Materials Science
Copper-wire ‘metamirror’ reflects selectively
A metamaterial mirror reflects only a single wavelength of light, potentially leading to more compact and affordable radio antennas.
