Brainstuff
BrainStuff
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Is the sound on vinyl records better than on CDs?
The sound quality of vinyl records is sometimes better than ...
The sound quality of vinyl records is sometimes better than that of CDs and DVDs -- and sometimes worse. Learn more about the difference between the sound quality of records, CDs and DVDs in this episode.
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How do we measure sea level?
Sea level is an important measurement, but it's also a ...
Sea level is an important measurement, but it's also a complicated one. Find out why in this episode of BrainStuff.
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What does Pez mean?
Today, Pez candy dispensers are a sweet treat for children ...
Today, Pez candy dispensers are a sweet treat for children and a novelty for adults. Originally, however, they were created to help adults quit smoking. Learn more about the fascinating history of Pez in this podcast from HowStuffWorks.com.
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What is the difference between hardwood and softwood?
When it comes to differentiating between hardwoods and softwoods, it's ...
When it comes to differentiating between hardwoods and softwoods, it's not a matter of hardness or density -- it's all about plant reproduction. Marshall explains what angiosperms and gymnosperms are in this episode.
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Where does cork come from?
Most cork comes from special trees that grow in places ...
Most cork comes from special trees that grow in places near the Mediterranean Sea. Learn more about cork oak trees, cork properties, cork products and cork processing in this episode.
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Is it true that a diesel engine can operate underwater?
Under certain circumstances, diesel engines can operate while submerged in ...
Under certain circumstances, diesel engines can operate while submerged in water. Find out what it takes to waterproof an engine -- and why diesel engines are better candidates than their gasoline counterparts -- in this episode of BrainStuff.
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How do stabilizer bars work?
Stabilizer bars are designed to keep your car from rolling ...
Stabilizer bars are designed to keep your car from rolling when you make sharp turns. Learn more about how these bars work in this episode of BrainStuff.
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What are motion cards and how do they work?
Motion cards, which have been around for decades, give the ...
Motion cards, which have been around for decades, give the illusion of motion using multiple images and a special printing process. In this episode, Marshall discusses the technology behind motion cards and how it has improved over the years.
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How does a CB radio antenna work?
A citizens band (CB) radio is often used by truck ...
A citizens band (CB) radio is often used by truck drivers to communicate while on the road, but how does it work? Marshall Brain gives a detailed explanation of how a CB radio's antenna works in this episode.
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When you have an itch, what's happening under your skin?
Skin covers our bodies, so it's very easy for this ...
Skin covers our bodies, so it's very easy for this delicate organ to get irritated. In this episode, Marshall explains why our bodies respond to irritants with an itching sensation -- and why we're programmed to scratch.
