Uncategorized
- Earth
Plastic trash rides ocean currents to the Arctic
Ocean currents can carry plastic trash far from the cities that shed it. Some plastic debris has made it all of the way to the Arctic Ocean, new data show.
- Microbes
Tweaked germs glow to pinpoint buried landmines
Finding landmines could become much safer with a new technology. It uses genetically modified bacteria that glow under laser light.
- Life
Scientists Say: Mitochondrion
Mitochondria are structures inside cells that converts certain chemicals into adenosine triphosphate — a molecule cells use as energy.
- Tech
Teens garner some $4 million in prizes at 2017 Intel ISEF
Hundreds of teens collectively took home about $4 million in awards from the Intel International Science and Engineering Fair this week.
- Materials Science
A better way to stop a bullet?
A teen researcher's tests suggest that fabric body armor might stop bullets better if it were woven using a three-fiber, triangular mesh instead of the typical two-fiber-mesh configuration.
- Earth
Some food-packaging pollutants mess with the thyroid
Chemical pollutants may hurt the ability of the thyroid gland to make an important hormone. Teens may be most at risk.
- Oceans
Teen’s invention can warn of deadly rip currents
A teen lifeguard from Australia has invented a buoy that can alert swimmers to the strong, swift and deadly rip currents that can sweep them dangerously far offshore.
- Physics
After 30 years, this supernova is still sharing secrets
It’s been 30 years since astronomers first witnessed the stellar explosion known as SN 1987A. Today, researchers are still learning from this cataclysmic phenomenon.
- Physics
Why your shoelaces untie themselves
High-speed video shows how the combined motions of a shoe’s swinging and landing on the ground provoke shoelaces to come untied.
- Materials Science
Nanowires made from silver are super stretchy
When silver nanowires stretch slowly, atoms on their surface can spread to heal weak spots. The discovery could lead to more flexible electronics.
- Animals
These killer whales exhale sickening germs
A group of endangered killer whales are exhaling disease-causing germs. Researchers worry these microbes could make the animals sick.
- Space
Scientists Say: Supernova
When a star has too much mass, it can explode. The explosion is called a supernova.
