Brainstuff
BrainStuff
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How much oxygen does a person consume in a day?
The average adult at rest inhales and exhales between 7 ...
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.
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How Marshmallows Work
Marshmallows are an old candy -- they've been around since ...
Marshmallows are an old candy -- they've been around since the 1800s. The name marshmallow comes from the original recipe, which called for sap from the marshmallow plant. Check out this HowStuffWorks to learn more about the history of marshmallows.
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What is a lightyear?
A lightyear is a way of measuring distance -- specifically, ...
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.
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Why are traffic lights being replaced with LEDs?
Across the country, incandescent traffic lights are being replaced with ...
Across the country, incandescent traffic lights are being replaced with LED arrays. Check out this podcast from HowStuffWorks to learn more about the advantages of LED traffic lights.
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What are hot dogs made from?
Hot dogs were first created in Frankfurt, Germany. But what ...
Hot dogs were first created in Frankfurt, Germany. But what exactly are they made from? Check out this HowStuffWorks podcast to learn more about the mysterious ingredients of hot dogs.
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Why is there a small hole on the top of spray can lids?
Many spray can lids have a tiny hole at the ...
Many spray can lids have a tiny hole at the top. Check out this HowStuffWorks podcast to learn more about spray cans, shipping, and air pressure.
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What Happens to Blood During the Embalming Process?
The embalming process is designed to keep the body preserved ...
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.
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What causes poison ivy blisters?
When people get a rash from poison ivy, their bodies ...
When people get a rash from poison ivy, their bodies are reacting to a chemical called urushiol. Check out this HowStuffWorks podcast to learn more about poison ivy rashes.
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What do the yellow and black wires in a home telephone jack do?
It only takes two wires to connect a phone, but ...
It only takes two wires to connect a phone, but most house wiring contains four wires. Check out this HowStuffWorks podcast to learn why.
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How the Lightsaber Effect Works
Unfortunately lightsabers aren't real. The technique used to produce the ...
Unfortunately lightsabers aren't real. The technique used to produce the lightsaber effect is simple, but tedious. Check out this HowStuffWorks podcast to learn more about the special effects behind lightsabers.
