Uncategorized
- Science & Society
Suffering from racist acts can prompt Black teens to constructive action
Stress from experiencing racist acts can lead Black teens to recognize and confront racism and fight for social justice.
- Physics
Scientists Say: Velocity
Velocity is more than speed. It is both speed and the direction in which an object is traveling.
- Tech
New device tells smiles from frowns — even through a mask
Most facial-recognition software has to see the whole face to work. The new type can reconstruct an entire expression from just viewing your cheeks.
- Oceans
Analyze This: Shipwrecks provide a home for bottom-dwelling fish
Fish have found a habitat in a submarine and freighter that sunk to the seafloor during World War II.
- Animals
Around the world, birds are in crisis
Human activities around the world are threatening bird species. Numbers of even some of the most common species are starting to fall.
- Archaeology
This prehistoric woman from Peru hunted big game
Women in the Americas speared large prey as early as 9,000 years ago, new archaeological evidence suggests.
- Space
Jupiter may have ‘sprites’ or ‘elves’ in its atmosphere
This is the first time that scientists have seen hints of these weird side effects of lightning storms somewhere other than on Earth.
- Tech
Let’s learn about virtual reality
Scientists use virtual reality to build new games and to help people fight their fears.
- Earth
Explainer: Our atmosphere — layer by layer
Earth’s five layers extend from the ground up and into outer space. Each has its own distinct features and serves as the site of different activities and phenomena.
- Life
Ogre-faced spiders listen closely to snatch bugs from the air
Ogre-faced spiders can hear prey sneaking around behind them. Low frequencies can trigger a blind, backwards attack.
- Health & Medicine
Scientists Say: Apoptosis
When it’s time for cells to die, they need to do it carefully, so they don’t harm other cells.
- Plants
Please do not touch the Australian stinging tree
Stinging-tree leaves look soft and inviting, but one touch delivers agony. Structurally, the plant's painful chemical looks a lot like spider venom.
