What Is Entropy, Really?
Never mind the “heat death of the universe.” Entropy is just a bridge between two levels of reality.
What Is Entropy, Really? Read More »
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Drive Slower, Save Money on Gas. Thanks, Physics!
Planning a Fourth of July getaway? Use less gas—and cut your emissions—by easing up on the pedal.
Drive Slower, Save Money on Gas. Thanks, Physics! Read More »
How Can Soccer Players Bend Their Shots in Midair?
As World Cup action kicks off, we look at the physics of the beautiful game.
How Can Soccer Players Bend Their Shots in Midair? Read More »
All the Fancy Measuring Devices Used in Science Rely on Two Stone-Age Techniques
The multifarious methods we use to gather experimental data ultimately boil down to counting or comparing.
All the Fancy Measuring Devices Used in Science Rely on Two Stone-Age Techniques Read More »
Build a Radio Wave Detector With Balls of Aluminum Foil!
Here’s how you can hack together a radio transmitter and receiver out of stuff you have at home—and explore the weirdness of wireless.
Build a Radio Wave Detector With Balls of Aluminum Foil! Read More »
Do Lightsaber Blades Have Mass?
On Star Wars Day, we put to rest a question that has bedeviled sci-fi nerds for years.
Do Lightsaber Blades Have Mass? Read More »
How Can Astronauts Tell How Fast They’re Going?
Weirdly, spaceships have no direct way to gauge their own speed. Luckily, we can use some physics tricks to figure it out.
How Can Astronauts Tell How Fast They’re Going? Read More »
One Way or Another, Most of Our Electricity Comes From Solar Power
That’s good news, since the forecast is sunshine for the next 5 billion years.
One Way or Another, Most of Our Electricity Comes From Solar Power Read More »
You Can Approximate Pi by Dropping Needles on the Floor
Who needs a supercomputer when you can calculate pi with a box of sewing needles?
You Can Approximate Pi by Dropping Needles on the Floor Read More »
How Can a Locomotive Pull a Long Train That’s Much Heavier?
For railroads, it’s all about managing static and kinetic friction.
How Can a Locomotive Pull a Long Train That’s Much Heavier? Read More »