Physics
- Chemistry
Working up a sweat may one day power up a device
Tech that turns sweat into power may make for greener gadgets. A new device uses perspiration to charge a supercapacitor and run a sensor.
- Chemistry
Scientists Say: Polymer
Polymers can be natural or man-made, but they are all big molecules made up of smaller units linked together.
- Materials Science
Silk-based microneedles may help treat diseased plants
Engineers have invented silk microneedles to inject medicines into plants. One day farmers might use drones to dart their sick plants with meds from the air.
- Materials Science
Astronauts may be able to make cement with their own pee
Lunar dust and a compound found in urine might one day be used to build future dwellings on the moon, a new study finds.
- Chemistry
Let’s learn about colors
The colors we see come from electromagnetic waves traveling through space and hitting our eyes.
- Physics
Physicists foil classic oobleck science trick
Cornstarch and water — best known as oobleck — solidifies upon impact. Researchers used a new technique to make it stay liquid.
- Physics
Scientists Say: Spaghettification
Black holes cram a lot of mass into a small area. When another object gets close, the black hole’s gravity can stretch it into a noodle-like strand.
- Physics
Scientists Say: Momentum
This word describes a property of a moving object based on its mass and the direction and speed of its motion.
- Chemistry
Let’s learn about bubbles
Bubbles are a great way to while away a beautiful summer day. Knowing a bit of science can help you blow the biggest and the best bubbles.
- Climate
Did rain put the Kilauea volcano’s lava-making into overdrive?
Scientists share strongly conflicting opinions about why Hawaii’s Kilauea volcano spewed an overabundance of lava in 2018.
- Animals
Minecraft’s big bees don’t exist, but giant insects once did
Big bees buzz in Minecraft. In our world, blocky bees might starve and be stuck on the ground. Yet long ago, giant insects did roam our planet.
- Physics
Science offers recipes for homemade coronavirus masks
New studies provide data on what types of mask materials protect best against the virus that causes COVID-19. They also point to the value of a really snug fit.
