HS-PS4-3
Evaluate the claims, evidence, and reasoning behind the idea that electromagnetic radiation can be described either by a wave model or a particle model, and that for some situations one model is more useful than the other.
- Materials Science
Nano medicines take aim at big diseases
Nanomedicines are new treatments and tools that are taking aim at disease from the cellular level. Medicine’s next big thing could be very teeny tiny.
- Physics
Famous physics cat now alive, dead and in two boxes at once
Splitting Erwin Schrödinger’s famous — and fictitious — cat between two boxes brings scientists one step closer to building quantum computers from microwaves.
- Earth
Cool Jobs: Getting to know volcanoes
It’s too hot to explore the insides of a volcano. These scientists examine their lava, their low-frequency rumblings and their ‘vog’.
- Space
Hurricane at this galaxy’s center is wicked fast
The gale-force winds around one quasar whip by at almost 200 million kilometers per hour. That’s 625,000 times faster than the strongest hurricanes on Earth.
- Tech
Feeling objects that aren’t there
A new technology uses high-frequency sound waves to create virtual objects you can feel. Its uses include better video games and safer driving.
- Tech
Explainer: What are lidar, radar and sonar?
Radar, sonar and lidar and are three similar technologies. Each relies on the echoing of waves — radio, sound or light waves — to detect objects.
- Tech
Laser vision reveals hidden worlds
From discovering ancient ruins to forecasting climate change, the laser mapping technology called lidar is changing many fields of science.
- Physics
How to pick up messages after they’re gone
By watching for light’s ‘echoes,’ physicists think they can retrieve information being relayed by or as light. It could make it possible for astronomers to view distant objects without having to see the light they cast off.
- Tech
Rewritable paper: Prints with light, not ink
Rewritable paper could save money, preserve forests and cut down on waste — and all without using any ink.
- 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.
- Physics
Laser tweezers grab nano bits
An optical fiber, a bit of gold and a laser make up a new type of tweezers. Scientists may soon use it to pick up and move around individual viruses or proteins.
