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PODCAST

BrainStuff

Whether the topic is popcorn or particle physics, you can count on BrainStuff to explore -- and explain -- the everyday science in the world around us.

science natural sciences

All Episodes

2:04

How Polygraph Machines Work

BrainStuff ·

2008/12/03

Also known as 'lie detectors,' polygraphs are used to record an individual's vital signs, such as breathing rate, pulse, and so forth. Check out this podcast from HowStuffWorks to learn more about polygraphs and the art of lie detection. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

en-US

1:35

How much fuel does an international airplane use for...

BrainStuff ·

2008/11/21

A Boeing 747 uses approximately one galloon of fuel per second -- over the course of a ten hour flight, it might burn 36,00 galloons of fuel. How does this compare to a car? Check out this HowStuffWorks podcast to learn more about airplane mileage. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

en-US

2:06

What are MP3 files and how do they work

BrainStuff ·

2008/11/19

CDs store music using 44,100 16-bit digital samples per second, adding up to about 10 megabytes per minute -- and that's too large to move easily move across the internet. Check out this HowStuffWorks podcast to learn how MP3 files solve this problem. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

en-US

1:29

Why do apples and potatoes turn brown when you slice...

BrainStuff ·

2008/10/10

All cells contains thousands of enzymes, and each of these enzymes is necessary for the cell. Check out this HowStuffWorks podcast to learn which enzymes cause apples and potatoes to turn brown upon exposure to oxygen. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

en-US

3:23

What is an anti-siphon valve?

BrainStuff ·

2008/10/08

In houses with a built-in sprinkler system, anti-siphon valves prevent pesticides, pet waste, and other contaminants from polluting the home's water source. Check out this HowStuffWorks podcast to learn more about anti-siphon valves. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

en-US

0:22

How a GFCI outlet works

BrainStuff ·

2008/10/03

A normal 120 volt outlet in the US has two vertical slots and a role hole centered below the slots -- the outlets with a pair of red and black 'test' and 'reset' buttons are known as GCFI outlets. Check out this HowStuffWorks podcast to learn more. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

en-US

2:17

Could anti-lock brakes detect a flat?

BrainStuff ·

2008/09/29

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. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

en-US

2:01

How Gun Silencers Work

BrainStuff ·

2008/09/22

The sound of gunfire is incredibly loud, and it is amazing that anything is able to silence a firearm. However, the principle behind a gun silencer is surprisingly simple. Check out our HowStuffWorks article to learn more about silencers. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

en-US

2:19

How Heart Bypass Operations Work

BrainStuff ·

2008/09/19

Since the heart is a muscle, it relies on the oxygen and nutrients contained in blood. This blood is supplied by arteries on the exterior of the heart -- when these arteries are blocked, a heart attack results. Take a look at our HowStuffWorks article to Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

en-US

1:50

What is the difference between jelly jam and...

BrainStuff ·

2008/09/12

Jam, jelly, and preserves are all made from fruit mixed with sugar and pectin. Jell-O, on the other hand, is completely different. Take a look at our HowStuffWorks article to learn more. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

en-US

2:32

How children from the same parents look so different?

BrainStuff ·

2008/09/08

Every person has a set of chromosomes, or coiled strands of DNA. Check out this HowStuffWorks podcast to learn how chromosomes combine to promote variation from one generation to the next. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

en-US

1:34

How Catapults Works

BrainStuff ·

2008/09/05

There are three different technologies that fall into the catapult category: the ballista, the trebuchet and the catapult. Check out this HowStuffWorks podcast to learn more about the differences between catapult technologies. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

en-US

1:17

What does the computer in a car do?

BrainStuff ·

2008/09/03

All cars manufactured today contain at least one computer -- but what does it do? Check out this HowStuffWorks podcast to learn more about car computers. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

en-US

2:48

How Water Softener Works

BrainStuff ·

2008/08/29

The idea behind a water softener is simple: the calcium and magnesium ions in hard water are replaced with sodium ions. Learn more about the harmful effects of hard water -- and the benefits of soft water -- in this HowStuffWorks podcast. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

en-US

2:54

How Carbon Chains Work

BrainStuff ·

2008/08/27

Learn how the length of hydrocarbon atom chains have different properties, producing substances such as kerosene, methane and other forms of fossil fuel. Check out this HowStuffWorks podcast to learn more about fossil fuels. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

en-US

1:53

Do the humps on camels hold water?

BrainStuff ·

2008/08/25

The camel's hump is a giant deposit of fat that lets the camel survive up to 2 weeks without food. Learn more about camels in this HowStuffWorks podcast. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

en-US

1:07

Why does Alka-Seltzer fizz?

BrainStuff ·

2008/08/20

The fizzing you see when you drop an Alka-Seltzer tablet in water is the same sort of fizzing that you see from baking powder. This reaction is caused by an acid reacting with a base. Check out this HowStuffWorks podcast to learn more. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

en-US

2:17

What causes the banging noise in my home's pipes?

BrainStuff ·

2008/08/18

The problem of pipes banging on a wall is often called "water hammer." Check out this HowStuffWorks podcast to learn more about this phenomenon. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

en-US

1:41

How Catalytic Convertors Work

BrainStuff ·

2008/08/11

Catalytic convertors convert hydrocarbons, carbon monoxide, and nitrogen oxides into three harmless chemicals, making the exhaust of a vehicle much cleaner. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

en-US

1:14

How 3-Way Lightbulbs Work

BrainStuff ·

2008/08/01

A 3-way bulb contains two filaments, and these filaments have differing wattages. Depending on the setting, the filaments operate separately or together to create the appropriate amount of light. Learn more about 3-way bulbs in this HowStuffWorks podcast. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.

en-US

2,702 results

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