Physics
- Physics
Colliding dust grains charge each other up
Physicists propose a way that cloud particles can electrify themselves.
- Life
Fruit flies turn on autopilot
High-speed video reveals the aerodynamics behind the insects’ maneuverability.
- Chemistry
Superheavy element 117 makes debut
An international team of researchers fill a gap in the periodic table, and lay another stepping stone along the path to the “island of stability.”
- Physics
LHC revs up
The world’s most powerful atom smasher achieves its most energetic collisions yet.
- Physics
Bar codes could be next to check out
New radio frequency tags would use nanotechnology to identify and track products.
- Chemistry
Building a cheaper catalyst
Using perovskite instead of platinum in catalytic converters could shave many hundreds of dollars off the cost of a diesel car.
- Chemistry
BPA found beached and at sea
Food chemists have been showing for years that bisphenol A, an estrogen-mimicking building block of polycarbonate plastics and food-can coatings, can leach into food and drinks. But other materials contain BPA – and leach it – such as certain resins used in nautical paint. And Katsuhiko Saido suspects those paints explain the high concentrations of BPA that he’s just found in beach sand and coastal seawater around the world.
- Physics
You really can freeze hot water faster than cold*
Experiments suggest that impurities in the warmer water may explain the “Mpemba effect” in which warm water freezes faster than cold water.
- Physics
Superchilly chemistry
New theory and experiments help reveal how molecules interact in an ultracold system.
- Physics
How to hide a bump with some logs
Physicists take a step toward true invisibility with a cloak that makes objects invisible from multiple points of view.
- Physics
Next on CSI: Surface-enhanced Raman spectroscopy
The modification of a powerful chemical analysis technique could make it the gold standard in detecting trace substances.
- Physics
Body heat may draw particles into breathing range
Computer simulations suggest thermal plumes may trap microbes, pollen and dust near a person’s head.
