HS-PS4-1
Use mathematical representations to support a claim regarding relationships among the frequency, wavelength, and speed of waves traveling in various media.
- Earth
Earthquake sensor: Taylor Swift fans ‘Shake It Off’
Scientists determined dancing fans were behind the seismic waves recorded during Swift’s August concerts.
- Earth
Explainer: Sprites, jets, ELVES and other storm-powered lights
Fleeting glows collectively known as “transient luminous events” flash in the skies above powerful lightning storms.
- Physics
Here’s why blueberries aren’t blue — but appear to be
Blueberries actually have dark red pigments — no blue ones — in their skin. Tiny structures in the fruits’ waxy coat are what make them seem blue.
- Oceans
Analyze This: Climate change may worsen the spread of ocean noise
Some parts of the ocean may become five times as loud in the future.
- Earth
The weird sky glow called STEVE is really confusing scientists
Researchers are trying to figure out the recipe of atmospheric conditions that creates this aurora-like light show.
- Physics
Scientists Say: Polarized light
Sunlight, lamplight and other lights are usually unpolarized. But passing light waves through filters can ‘polarize’ them.
- Physics
Neutrons are unveiling hidden secrets of fossils and artifacts
Images made with these particles have revealed details of dinosaur bones, mummies and more.
- Oceans
Shading corals during midday heat can limit bleaching
Shading coral reefs during the sunniest part of the day may help corals survive marine heat waves.
- Tech
Bionic plants and electric algae may usher in a greener future
Some can aid the climate by removing pollutants. Others would just avoid dirtying the environment in the first place.
- Physics
Scientists Say: Gamma ray
Lightning bolts, nuclear explosions, colliding stars and black holes all throw off this high-energy type of light.
- Physics
Scientists Say: Ultrasonic
This word describes sound waves that have frequencies too high for human ears to hear.
- Tech
Talking through a tube can trick AI into mistaking one voice for another
Researchers crafted tubes that can trick AI into mistaking one person’s voice for another’s. Bad guys could use such tricks to hack into accounts.
