Brainstuff
BrainStuff
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how do I know if my catalytic converter has failed?
An automobile's catalytic converter uses a catalyst to convert harmful ...
An automobile's catalytic converter uses a catalyst to convert harmful exhaust fumes into harmless ones. Find out what happens when your catalytic converter stops working properly -- and how you can tell -- in this episode.
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Why is carbon monoxide so poisonous?
The structure of hemoglobin causes oxygen to bind loosely to ...
The structure of hemoglobin causes oxygen to bind loosely to iron -- however, carbon monoxide binds very tightly to the blood's iron, reducing your ability to breathe. Check out this podcast from HowStuffWorks to learn more.
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How do scratch-and-sniff stickers work?
Scratch-and-sniff stickers are novelties that delight both children and adults. ...
Scratch-and-sniff stickers are novelties that delight both children and adults. Sniff out the ingenious technology that makes them work in this podcast from HowStuffWorks.com.
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What is a funicular railway?
A funicular railway combines the technology of an elevator and ...
A funicular railway combines the technology of an elevator and a train. But how do they actually work? Learn more about these fascinating railways -- and how old they are -- in this episode.
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Why doesn’t the vacuum of space suck away Earth’s atmosphere?
It's often said that "nature abhors a vacuum." If that's ...
It's often said that "nature abhors a vacuum." If that's true, then why doesn't the vacuum of space suck away our atmosphere? Tune in as Marshall Brain explains the science behind vacuums in this HowStuffWorks podcast.
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How Replacing Toilets Work
A family of four can consume more than 300 gallons ...
A family of four can consume more than 300 gallons of water per day. Old toilets use 5 gallons per flush, and this water use quickly adds up. Check out this HowStuffWorks podcast and learn why cities across the US are replacing their old commodes.
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What is a stratospheric aerosol?
Stratospheric aerosols have been proposed as a new way to ...
Stratospheric aerosols have been proposed as a new way to combat global warming -- but what's the science behind this proposal? Discover how stratospheric aerosols would work in this podcast from HowStuffWorks.com.
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How are LCD screens backlit?
In this episode, Marshall explains the two technologies that are ...
In this episode, Marshall explains the two technologies that are used to backlight LCD panels. Tune in to learn more about the science behind LCD panels.
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What do those plastic recycling symbols mean?
A typical recycling symbol on plastic looks like a triangle ...
A typical recycling symbol on plastic looks like a triangle made of arrows. There are seven different types of plastic indicated by the symbols. Check out this HowStuffWorks podcast to learn the difference between each of these plastic types.
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how does a direct-injection 2-stroke engine work?
In a previous episode, Marshall explained how 4-stroke, direct-injection engines ...
In a previous episode, Marshall explained how 4-stroke, direct-injection engines work. In this one, he takes a look at 2-stroke engines that utilize direct injection technology.
