Chemistry
- Chemistry
Chemists have unlocked the secrets of long-lasting Roman concrete
By searching ancient texts and ruins, scientists found a concrete recipe that could make buildings stronger — and help address climate change.
- Environment
Sea life may suffer as plastic bits alter metals in water
This interplay between plastics and metals could affect how each affects the environment — and suggests opportunities for controlling their risks.
- Materials Science
Let’s learn about the weird science of ice
Better understanding of ice could lead to new deicing materials or even, someday, weather control.
- Chemistry
Scientists Say: Rubisco
Rubisco is a key protein in the process of photosynthesis, which feeds plants — and, in turn, us.
- Materials Science
Scientists Say: Hydrogel
Tangled polymer chains help hydrogels hold their shape despite being full of water.
- Environment
For a better brick, just add poop
Sewage sludge. Cow dung. They’re not just waste — scientists are finding uses for processed poop in construction materials.
- Physics
How salty does the sea have to be for an egg to float?
Some objects float on top of the ocean, and other objects sink to the bottom. Why? Try this eggs-periment to find out!
- Chemistry
Explainer: All about carbon dioxide
Animals and other life on Earth exhale carbon dioxide, which plants use for photosynthesis. But too much of this gas can perturb Earth’s climate.
- Environment
Microplastic pollution aids viruses and prolongs their infectivity
The tiny plastic bits give these germs safe havens. That protection seems to increase as the plastic ages and breaks into ever smaller pieces.
- Chemistry
Was that fingerprint left during a crime? A new test may answer that
In what could be a boon to forensics, Iowa State University chemists have come up with a way to analyze the age of fingerprints.
- Physics
Explainer: Radiation and radioactive decay
Like clockwork, radioactive forms of some elements shed parts of themselves as they attempt to become nonradioactive.
- Physics
Explainer: Radioactive dating helps solve mysteries
Knowing the decay rate of radioactive elements can help date ancient fossils and other artifacts.
