Brainstuff
BrainStuff
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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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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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How can I recover a deleted file from my computer?
In many cases, it's possible to recover files that have ...
In many cases, it's possible to recover files that have been deleted by using your computer's Recycle Bin. Marshall Brain reveals ways to recover deleted files -- and how to erase them permanently -- in this episode.
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What is Windows Safe Mode?
Safe Mode is a feature of the Windows operating system ...
Safe Mode is a feature of the Windows operating system that allows users to load a limited version of the system in order to troubleshoot problems. Learn more about using Safe Mode in this episode.
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What makes us yawn?
Yawning is a universal human behavior, yet scientists still don't ...
Yawning is a universal human behavior, yet scientists still don't know exactly why we do it or what purpose it serves. Marshall Brain explores some of the theories behind yawning in this episode.
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What is a digital signature?
A digital signature is a way to authenticate electronic documents. ...
A digital signature is a way to authenticate electronic documents. Find out what 'authentic' means in this context -- and how encryption is involved in the authentication process -- in this episode.
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Will a really big earthquake sink Western California?
Given California's history of earthquakes and major fault lines, it's ...
Given California's history of earthquakes and major fault lines, it's not surprising that people speculate about parts of California breaking off into the ocean. Fortunately, seismic forces don't work that way, as Marshall Brain explains in this episode.
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What are electrolytes?
What are electrolytes, and why do athletes and sick kids ...
What are electrolytes, and why do athletes and sick kids need them? Marshall Brain explains how ions and electrolytes work in your body in this episode.
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Why can biting on aluminum foil be painful?
When (dental) metal in your mouth comes in contact with ...
When (dental) metal in your mouth comes in contact with aluminum foil, your teeth get a painful shock from the electricity produced. Marshall Brain explains how the voltaic effect plays out in your mouth in this episode.
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What exactly is jello made from?
Jello is tasty, colorful and fun to eat, but what's ...
Jello is tasty, colorful and fun to eat, but what's in it? One of its ingredients, gelatin, comes from animals. Marshall Brain breaks down the chemistry of jello and gelatin in this episode.
