Energy
- Microbes
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.
- Physics
Scientists ‘see’ thunder for first time
Scientists have captured the first image of thunder. The map shows the relative strengths of the sound waves emanating from the loud clap.
- Tech
‘Smart’ clothes generate electricity
Scientists in South Korea have developed a fabric that captures energy from its wearer’s motions and turns it into electricity.
- Physics
How popcorn got its pop
Popcorn is a popular treat. Now, scientists have learned exactly what happens as it pops. They also have come up with an experiment they hope you will try.
- Climate
Fast sea level rise is a very recent change
Sea levels have been rising for more than a century. But that rise is now speeding up. That suggests that what is driving the rise — climate change — also has increased dramatically in recent years.
- Brain
A new ‘spin’ on concussions
Scientists have suspected that rotational forces in the brain may underlie concussions. A new study used athletic mouthguards containing sensors. Data on head movements during collisions suggest that a twisting of the brain may underlie mild brain injuries, including concussion.
- Physics
Machine simulates the sun’s core
A machine heats iron atoms to temperatures that match the interior of the sun. This has helped solve a solar mystery.
- Tech
Digital lighting goes organic
An environmentally friendly lighting technology promises not only to save energy but also to transform our indoor environment.
- Computing
Electricity: Cutting the cords
Engineers are working to charge more wireless gadgets — without relying on cords and plugs.
- Physics
Student radiation experiment goes to space
The Exploration Design Challenge asked students to design shields that would protect astronauts from radiation. Teachers can still involve classes in the challenge.
- Earth
Explainer: Telling a tsunami from a seiche
Waves that hit coastlines with ferocious power, tsunamis are one of the planet’s most devastating forces of nature. And seiches: They’re tsunamis little, but still potentially deadly, cousins.
- Earth
Earthquake-triggered lightning?
An experiment with beads offers support for the claim that a rare type of lightning may accompany some quakes.
