Elastic collisions in one dimension are a clear example of physics in action, where both momentum and kinetic energy remain unchanged. With the right formulas, you can predict exactly how objects will ...

Plasmonic nanomachines use light-generated gradients to create local force, offering a design framework for controlled motion at micro- and nanoscale dimensions.

How to Watch PBS News Hour. PBS News Hour is available to stream on pbs.org and the free PBS App, available on iPhone, Apple ...

Particles are nature’s smallest constituents, but that doesn’t mean they’re fundamental. So what is the Universe made of?

Electronic nematicity is a phase of some crystalline solids in which electrons' collective properties, such as charge or spin ...

The Takedown on SI's coverage of AEW Collision features Kevin Knight, Anna Jay, Jungle Jack Perry, Willow Nightingale, and more.

Something invisible holds the universe intact. It outweighs everything you can see—every star, every gas cloud, every ...