How Long Does It Take for a Photon to Escape the Sun?
Light is fast, but the Sun is dense. Uncover the physics of the “random walk” that turns a milliseconds-long journey into a process lasting thousands of years.
Physics
Featured stories
More in Physics
New Research on Light
Here is what light actually involves, what the latest research says about it, and the practical details most people never hear about.
How Energy and Friction Are Linked
Many people misunderstand energy. We look at how it really works, why it matters, and what recent studies have added to the picture.
What’s Really Going On With Heat?
From the basics to the newest findings, this guide explains heat in plain language and clears up a few of the most common myths.
Ten Things to Know About Electricity
What causes the changes linked to electricity, how static electricity fits in, and which simple facts make the whole topic much easier to understand.
Friction: What to Know
Researchers have learned a lot about friction in recent years. Here are the key findings, what they mean, and what is still unknown.
Common Myths About Sound Waves
Here is what sound waves actually involves, what the latest research says about it, and the practical details most people never hear about.
The Science Behind Magnets
From the basics to the newest findings, this guide explains magnets in plain language and clears up a few of the most common myths.
Common Myths About Energy
Many people misunderstand energy. We look at how it really works, why it matters, and what recent studies have added to the picture.
A Beginner’s Guide to Rainbows
Here is what rainbows actually involves, what the latest research says about it, and the practical details most people never hear about.
Everything You Need to Know About Gravity
What causes the changes linked to gravity, how friction fits in, and which simple facts make the whole topic much easier to understand.