MS-PS4-2
Develop and use a model to describe that waves are reflected, absorbed, or transmitted through various materials.
- Physics
Here’s how to levitate something without magic
Levitation may seem like fantasy. But all it takes is a little physics — and sound waves, magnetism or electricity.
- Animals
Rudolph’s red nose could glow through bioluminescence
Simple chemistry could give the reindeer his iconic red snout. But physics would make it look different colors to anyone who spied Rudolph from the ground.
- Physics
Scientists Say: Blue whirl
Four types of smaller flames create the perfect firestorm of elegantly efficient combustion.
- Physics
This microphone picks up sounds by watching them
This microphone can “hear” by viewing the tiny vibrations made in everyday objects as sound waves strike them.
- Psychology
Listening to slightly different sounds in each ear may boost focus, teen finds
While “binaural beats” may boost attention, his research shows video game music is distracting.
- Space
Scientists caught a black hole ringing like a bell
Two black holes merged, creating a new, bigger one. This event triggered the clearest ripples in spacetime ever observed.
- Physics
How polarized and UV-blocking sunglasses protect our eyes
Their filters can cut glare to help us see more clearly. The best ones also filter out the sun’s UV rays — even on cloudy days — to limit eye damage.
- Physics
Much of the sun’s light is green. Why does it look yellow?
Sunlight's peak intensity is at a green wavelength. Here’s why it doesn’t appear that way to us.
- Physics
Physics finally explains the sound of clapping
The “Helmholtz resonator” concept is responsible for the sound produced by hand-clapping.
- Microbes
Living lenses? Glass-coated microbes might take better photos
Bacteria with a gene from sea sponges can coat themselves in glass. Working as tiny, bendable lenses, they could lead to thinner cameras or sensors.
- Materials Science
Orange food dye can temporarily turn skin transparent
When mixed with water and rubbed on the skin, a common food dye allows researchers to peer inside the body of a mouse.
- Space
Here’s how to build an internet on Mars
Future Red Planet residents will need to get online to talk to each other and Earth. But that will require a lot of new tech.
