HS-PS4-1
Use mathematical representations to support a claim regarding relationships among the frequency, wavelength, and speed of waves traveling in various media.
- Tech
‘Frozen smoke’ could protect electronics from annoying static
A fluffy material made from cellulose nanofibers and silver nanowires can protect electronic devices by blocking more than 99.99 percent of disrupting interference, a new study reveals.
- Humans
Changing climates can take cooling tips from warm regions
When summer heat waves hit northern cities, people might look to keep cool using tropical building strategies — and forgotten architectural wisdom.
- Archaeology
Stonehenge enhanced voices and music within the stone ring
Scientists built a 'Stonehenge Lego' model in a sound chamber to study how sound would have behaved in the ancient stone circle.
- Planets
Saturn’s moon Titan may host lots of dried lakes
Suspicious spots around the moon’s middle could be the beds of ancient lakes. If so, this might solve a 20-year-old mystery.
- Space
Spotted: Milky Way’s giant gas bubbles in visible light
The bubbles have different colors, based on how the gas inside them moves. That could give clues to how the bubbles developed.
- Physics
Understanding light and other forms of energy on the move
Radiation needn’t be scary, especially if it allows us to see our family or use our cell phones. Here’s a guide to light and other types of emitted energy.
- Physics
Explainer: Rainbows, fogbows and their eerie cousins
Light shining through a water droplet can make more than just a rainbow. A range of other colorful arcs also can develop.
- Environment
Legos could last a disturbingly long time in the ocean
By looking at toys washed up on beaches, scientists have estimated how long it takes hard plastics to break down in the oceans. And it’s a long time.
- Health & Medicine
New ultrasound treatment kills off cancer cells
Low-frequency ultrasound destroys cancer cells while leaving most healthy cells intact.
- Physics
Soap bubbles’ ‘pop’ reveals the physics of the bursts
A bubble’s pop is a quiet, high-pitched noise. This can reveal the forces that occur during the bubble’s demise.
- Earth
Newfound ‘dunes’ is among weirdest of northern lights
There’s a new aurora dubbed the 'dunes.' It’s weird and joins the ranks of black auroras, STEVE and other odd natural light shows.
- Life
Here’s how butterfly wings keep cool in the sun
Butterfly wings sport structures that let living tissues release more heat than the rest of the wing.
