Brainstuff
BrainStuff
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What is a Nor’easter?
Nor'easters are storm systems that frequently occur in the eastern ...
Nor'easters are storm systems that frequently occur in the eastern United States during winter. In this episode, Marshall explains where Nor'easters get their name, how they work and why some Nor'easters are more powerful than others.
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How do smoke detectors intercommunicate?
Some AC-powered smoke detectors are wired to communicate with each ...
Some AC-powered smoke detectors are wired to communicate with each other. So when one unit is triggered, all of the units go off. Find out how this intercommunication works in this episode.
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Where did the potato chip come from?
Potato chips were invented in 1853 by an American cook ...
Potato chips were invented in 1853 by an American cook named George Crum, and they've been a popular food item ever since. Learn more about George Crum and the evolution of the potato chip in this episode of BrainStuff.
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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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How do mood rings work?
Mood rings claim to reflect changes in your emotional state ...
Mood rings claim to reflect changes in your emotional state -- and, in a way, they do. Discover the science behind mood rings in this episode of BrainStuff.
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What makes your knuckles pop?
Learn more about the anatomy (and chemistry) behind that popping ...
Learn more about the anatomy (and chemistry) behind that popping sound your knuckles make when you crack them in this episode of BrainStuff.
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Could I see a flashlight beam from Earth on the moon?
If you shone a flashlight beam from Earth, would you ...
If you shone a flashlight beam from Earth, would you be able to see it from the moon? It depends. Find out why -- and get a lesson in how light works -- in this episode of BrainStuff.
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Why do tools have "drop forged" stamped on them?
Tools that say "drop forged" have been created using a ...
Tools that say "drop forged" have been created using a technique called drop forging. Find out how drop forging and several other kinds of forging work, and why drop forging is a sign of a sturdy tool, in this episode of BrainStuff.
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How does the lighter in a barbeque grill work?
A barbeque grill has a push-button lighter that relies on ...
A barbeque grill has a push-button lighter that relies on piezoelectricity to generate a spark. Learn more about how piezoelectricity works -- and the kinds of devices that use piezoelectric materials -- in this episode of BrainStuff.
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How can you measure the height of a tall tower?
In this episode of BrainStuff, Marshall reveals three common techniques ...
In this episode of BrainStuff, Marshall reveals three common techniques for measuring the height of tall objects like towers.
