What is a light year?09/30/15
A light year is a way of measuring distance -- specifically, the distance light can travel in one year. Just how far is that? Check out this classic Brainstuff podcast from HowStuffWorks' archives to learn more about astronomy.
What is the difference between a turbo-charger and a...
Both turbo- and super-chargers are forced inductions systems, meaning they compress the air flowing into the engine. This compression causes each cylinder of an engine to produce more power. Check out this HowStuffWorks article to learn more.
How Rearview Mirrors Work
How can the same piece of glass have two different amounts of reflection? Learn more about rearview mirrors in this HowStuffWorks podcast.
Will a really big earthquake sink Western California?
Given California's history of earthquakes and major fault lines, it's not surprising that people speculate about parts of California breaking off into the ocean. Fortunately, seismic forces don't work that way, as Marshall Brain explains in this...
How do the Northern Lights work?
The Northern Lights, also known as the aurora borealis, occur when charged electrons from the sun interact with the Earth's magnetic field. Learn more about auroras and solar activity in this episode.
What would happen if the polar ice caps melted?
Learn more about melting ice caps, global warming and rising sea levels in this episode of BrainStuff.
What causes the smell after rain?
The smell of rain is often linked with spring, and it's been alluded to in poems, songs and stories for centuries. But what exactly causes this distinctive smell? Tune in and find out.
How do Pop Rocks candy work?
Hard candy (like a lollypop or a Jolly Rancher) is made from sugar, corn syrup, water and flavoring. Check out our HowStuffWorks article to learn how conventional candy is combined with carbon dioxide to produce Pop Rocks.
Can I see the stuff astronauts left on the moon?
Using a telescope to view the moon is fascinating -- but could we see the leftovers of NASA's lunar expeditions? Check out this HowStuffWorks podcast to learn more about lunar landings and telescopes.
How Golf Ball Dimples Work
If you've ever looked at a golf ball, you've probably noticed it has dimples. But why is that? Learn the story behind dimpled golf balls in this Brainstuff podcast.
How the Dow Jones Industrial Average Works
The Dow Jones Industrial Average tracks a variety of stocks to assist investors. Learn how the Dow Jones keeps tabs on the stock market.
What Happens to Blood During the Embalming Process?
The embalming process is designed to keep the body preserved until the funeral, but how exactly does it work and what happens to bodily fluids like blood? Get the gory details in this HowStuffWorks podcast.
How does the snow dragon eat and digest snow?
For cities plagued by yearly snowstorms, a fleet of snow plows and salt often aren't enough to get rid of excess drifts. Luckily, there's another option: Snow dragons. These machines can melt snow on the spot -- but how do they work? Tune in to find...
Can nasal sprays be addictive?
Some people have become so dependent on their nasal sprays and products that they might worry they're addicted. Marshall Brain explains why you can't really be addicted to nasal products in this episode.
What is Schadenfreude?
Schadenfreude is a German word that means taking pleasure in someone else's pain. But it's not the same as sadism, as Marshall Brain explains in this episode. Tune in to learn more about this particularly German sensation.
How many balloons would it take to life someone off the...
Balloons are often filled with helium, which has a lifting force of one gram per meter. It's possible to assemble enough balloons to lift yourself from the ground -- but how many balloons does it take? Tune into this HowStuffWorks podcast to learn...
What's the difference between LPG or natural gas?
Since liquefied petroleum gas and natural gas have very different properties, it's always important to specify which substance you will use when buying an appliance. Check out this podcast from HowStuffWorks to learn more.
How can you figure out how far away lightning struck?
Check out this podcast from HowStuffWorks to learn how to gauge the distance of a lightning strike with a simple equation.
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 HowStuffWorks.com.
How do astronauts function in their spacesuits?
Astronauts wear special suits while they're working in space, and these spacewalks can last for hours. In this episode, Marshall Brain explains how astronauts take care of their basic needs while wearing spacesuits.
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