Brainstuff
BrainStuff
Visit Show Website http://www.howstuffworks.com/Recently Aired
-
HD
What is an autograph worth?
An autograph is a famous person's signature, but what determines ...
An autograph is a famous person's signature, but what determines how valuable it is? Marshall Brain discusses the relative value of autographs -- and what you can do to increase the value of your own signature.
-
HD
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.
-
HD
What is Low-E glass?
Low-emissivity (Low-E) glass is a special, expensive type that blocks ...
Low-emissivity (Low-E) glass is a special, expensive type that blocks out ultraviolet and infrared light. This coated glass can help protect your furniture and improve the energy efficiency of your home, as Marshall Brain explains in this episode.
-
HD
How do self-winding watches work?
Self-winding watches keep the time with the help of a ...
Self-winding watches keep the time with the help of a piece of metal, gravity and the natural movement of your arm. Tune in to learn more about self-winding watches in this podcast from HowStuffWorks.com.
-
HD
Why do most zippers say 'YKK' on the pull-tab?
Have you ever wondered why zippers often have the letters ...
Have you ever wondered why zippers often have the letters 'YKK' etched into them? Learn more about the Japanese company behind the tiny letters -- and the zippers -- in this episode.
-
HD
Anti-reflective Coatings
Anti-reflective coatings are used to eliminate any light reflective off ...
Anti-reflective coatings are used to eliminate any light reflective off the back of the lenses. Learn about anti-reflective coatings in this BrainStuff episode.
-
HD
How much coal does a light bulb need to run for a year?
How much coal do you need to run a 100-watt ...
How much coal do you need to run a 100-watt light bulb 24 hours a day for a year? The answer might surprised. Tune in and find out in this episode of BrainStuff.
-
HD
What is mayonnaise?
Mayo is an emulsion - a mixture of two liquids ...
Mayo is an emulsion - a mixture of two liquids that normally can't be combined. So how do these ingredients come together? Tune in to learn how oil, egg yolks and acid combine to form one of the world's most popular condiments.
-
HD
Is there an easy way to understand how time zones work?
There are 24 different time zones -- but why do ...
There are 24 different time zones -- but why do we have them? In this podcast, Marshall recounts how society evolved time zones, and also gives you an easy way to model the structure of time zones across the globe.
-
HD
Where does aluminum come from?
Aluminum is both lightweight and strong, so it's no wonder ...
Aluminum is both lightweight and strong, so it's no wonder that space stations, airplanes and thousands of other products use this metal. But where does it come from, and what makes it so special? Tune in to learn more.
