Uncategorized
- Physics
Gravity waves detected at last!
Albert Einstein predicted gravitational waves 100 years ago. Now scientists have detected them coming from the collision of two black holes.
- Physics
Explainer: What are gravitational waves?
Albert Einstein had predicted that large catastrophes, like colliding black holes, should produce tiny ripples in the fabric of space. In 2016, scientists reported finally detecting them
- Physics
How to catch a gravity wave
Physicists have just announced finding gravity waves. The phenomenon was predicted a century ago by Einstein’s theory of general relativity. Here’s what it took to detect the waves.
- Health & Medicine
Teen data find vapers often become smokers
Many view vaping as less harmful than cigarettes. But an increasing number of studies suggest that using e-cigarettes increases the risk a teenager will start to smoke.
- Plants
Before eating, Venus flytraps must ‘count’
Researchers find that Venus flytraps respond to the number of times insects touch their sensory hairs. This tells them when it’s time to turn on digestion.
- Health & Medicine
To control overeating: Slow down!
Encouraging young people to eat more slowly — and to stop when they’re full — may help prevent obesity, a new study finds.
- Chemistry
Scientists Say: Precipitation
Chemicals can dissolve into a solution, but when they come out, they precipitate.
- Animals
Picture This: Plesiosaurs swam like penguins
A computer model suggests plesiosaurs — ancient marine reptiles — swam like penguins, using front flippers for power and back flippers for steering.
- Tech
Powered by poop and pee?
Scientists are developing methods to not only remove human waste from wastewater, but also to harness the energy hidden within it.
- Animals
Bugs that call your house home
A survey of North Carolina homes found hundreds of species of insects, arachnids and other arthropods. Most, though, were harmless.
- Math
Hunt is on for new Planet Nine
Lots of clues point to the likelihood that a mystery planet lurks in the outer suburbs of our solar system. Math and the screening of old photos may turn it up.
- Earth
Bright night lights, big science
When the northern lights flare, blame the sun. Scientists say auroras “surge” when energy from solar wind builds up on the night side of the Earth.
