Uncategorized
- Archaeology
The oldest known grass beds from 200,000 years ago included insect repellents
Found in South Africa, 200,000-year-old bedding remnants included fossilized grass, bug-repelling ash and once aromatic camphor leaves.
- Life
Climate change, not hunters, may have killed off woolly rhinos
Ancient DNA indicates that numbers of woolly rhinos held steady long after people arrived on the scene.
- Health & Medicine
4 reasons you shouldn’t trash your neck gaiter based on the new mask study
Despite news coverage to the contrary, the study was meant to figure out how to evaluate masks, not actually do the comparison.
- Physics
Four types of flames join forces to make this eerie ‘blue whirl’
Pinning down the structure of the “amazingly complex” blaze could help scientists control it.
