How Stuff Works  |  Podcast, ±3 min episodes every 2 days
Join Marshall Brain in the BrainStuff Podcast and learn answers to life's everyday questions. Improve your knowledge with the BrainStuff Podcast.

How do self-setting clocks work?

Self-setting clocks and watches synchronize themselves with the atomic clock in Colorado with the help of a special radio station. Find out how -- and learn more about NIST's radio station -- in this episode.

How do they get the lead in a wooden pencil?

Today's pencils are manufactured very differently than the original versions; but they still use a material called graphite, which isn't lead at all. How does the graphite get in the pencil? Find out in this episode.

How can a valet rip you off?

Once relegated to high-end restaurants and clubs, valets are increasingly common across the United States. But how can you trust your valet -- and how will you know if the valet is scamming you? Tune in and find out.

How Proton Therapy Works

As a method of treating cancer, proton therapy has great potential. But how does it work, exactly, and what makes it superior to other forms of cancer treatment? Tune in and find out.

How do bake and broil settings differ?

Kitchen ovens typically have two settings: bake and broil. What's the difference between the two? Explore the science behind baking and broiling in this podcast from

What is a lightyear?

A lightyear is a way of measuring distance -- specifically, the distance light can travel in one year. Just how far is that? Check out this podcast from HowStuffWorks to learn more about astronomy.

How much oxygen does a person consume in a day?

The average adult at rest inhales and exhales between 7 to 8 liters of air each minutes. Check out this HowStuffWorks podcast to learn how much oxygen a person uses during a day of inhalation and exhalation.

How Sea Monkeys Work

Sea Monkeys are a type of brine shrimp. These shrimp create remarkably resilient eggs called cysts. Check out this HowStuffWorks podcast and learn more about the secret behind Sea Monkeys.

How does chlorine bleach work?

When you buy a gallon of bleach at the grocery store, what are you actually purchasing? Check out this HowStuffWorks podcast to learn more about bleach, chlorine and the chemical reactions behind these products.

Why can't we breathe underwater?

Water is made up of hydrogen and oxygen, so why aren't we able to breathe underwater? Find out in this episode of BrainStuff.

What does it mean when a car has dual overhead cams?

A camshaft plays an integral role in the functioning of an engine. And dual overhead cams ramp up a machine's performance even more. Find out how dual overhead camshafts work in this episode.

Could anti-lock brakes detect a flat tire?

By using a computer to monitor the rotation of the car's wheels, an anti-lock braking system helps drivers avoid skids. Could this computer also monitor flat tires? Check out this HowStuffWorks podcast to learn more about brake systems.