Environment
Ultrasound waves can help remove polluting microplastics in water
The innovative process concentrates microplastics within a flowing liquid. A two-step process then removes the potentially toxic bits.
Chemistry
More Stories in Chemistry
-
ChemistryCreation of quantum dots wins 2023 chemistry Nobel
The award honors three scientists who discovered and built quantum dots, which are now used in everything from TVs to medical tools.
-
ChemistryScientists Say: Rare earth element
Rare earth elements aren’t all that rare — but skyrocketing demand for these metals makes them precious.
-
AnimalsA new technique creates glowing whole-body maps of mice
Removing cholesterol from mouse bodies lets fluorescent proteins seep into every tissue. That has helped researchers map entire body parts.
-
AgricultureCow dung spews a climate-warming gas. Adding algae could limit that
But how useful this is depends on whether cows eat the red algae, a type of seaweed — or it gets added to their wastes after they’re pooped out.
-
TechHigh-tech solar ‘leaves’ create green fuels from the sun
Chemists make a liquid alternative to fossil fuels from carbon dioxide, water and the sun. Their trick? They use a new type of artificial leaf.
-
ChemistryScientists Say: Valence electrons
These far-out electrons do the hard work when it comes to chemical reactions.
-
PlantsA single particle of light can kick off photosynthesis
In a new experiment with bacteria, a lone photon sparked the process of turning light to chemical energy.
-
ChemistryExperiment: Test the effect of temperature on reaction time
Alka-Seltzer tablets fizzle furiously when dropped into water. Can you make Alka-Seltzer fizz faster or more loudly by changing the water’s temperature?
-
PhysicsScientists Say: Explosion
Explosions happen when chemical or nuclear reactions blow out a lot of heat, noise and expanding gas.