BrainStuff: Episodes
When you buy a gallon of bleach at the grocery store, what are you actually purchasing? Check out this HowStuffWorks podcast to learn more about bleach, chlorine and the chemical reactions behind these products.
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Many people store water for emergencies -- but is it true that water sitting for too long will go bad? Listen in as Marshall Brain breaks down the science of water purification in this HowStuffWorks podcast.
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Check out this podcast from HowStuffWorks to learn how to gauge the distance of a lightning strike with a simple equation.
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Since liquefied petroleum gas and natural gas have very different properties, it's always important to specify which substance you will use when buying an appliance. Check out this podcast from HowStuffWorks to learn more.
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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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Botulism bacteria creates a type of poisoning and paralysis. Check out this HowStuffWorks podcast to learn more about the effects and spread of botulism.
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The purpose of a refrigerator is to slow the growth of bacteria -- since some foods don't freeze well, they can't be placed in a freezer. Check out this HowStuffWorks podcast to learn the ideal temperature for your refrigerator.
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Adding random access memory -- or RAM -- to your computer can, to a degree, make the machine faster. Check out this podcast from HowStuffWorks to learn how RAM affects your computer.
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The octane rating of gasoline indicates how much a fuel can be compressed before it ignites. When gas ignites due to compression, knocking occurs within the engine. Check out this HowStuffWorks podcast to learn more about octane and engines.
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The clouds that some jets form on certain days are called condensation trails -- or contrails. Check out this HowStuffWorks podcast to learn more about condensation, weather and jets.
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If a balloon was filled by a vacuum -- rather than helium or air -- would it float? Check out this HowStuffWorks podcast to learn the science behind balloons and vacuum.
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An MRE -- or meal ready to eat -- contains precooked, sterilized food originally made to nourish soldiers. Check out this HowStuffWorks podcast to learn more about the retort packaging that makes MREs possible.
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Most disposable diapers contain a crystalline, absorbent substance called sodium polyacrylate. Learn how this polymer helps contain messes -- and some of the controversy surrounding this substance -- in this podcast from HowStuffWorks.
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Steel is an amazing metal. Many different varieties of steel exist, and some types of steel are better for certain tasks. Check out this HowStuffWorks podcast to learn how case hardening allows manufactures to get the best of multiple types of steel.
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Inkjet printers shoot extremely small droplets of ink -- thirty dots per millimeter or more -- onto paper to produce a picture. Check out this HowStuffWorks podcast to learn more about inkjet printers.
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Also known as 'lie detectors,' polygraphs are used to record an individual's vital signs, such as breathing rate, pulse, and so forth. Check out this podcast from HowStuffWorks to learn more about polygraphs and the art of lie detection.
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As of 1999, all TV sets sold in the Untied States are required to contain a viewer-control chip, also known as a v-chip. Check out this HowStuffWorks podcast to learn more about v-chips and television ratings.
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A family of four can consume more than 300 galloons of water per day. Old toilets use 5 galloons 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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Using a telescope to view the moon is fascinating -- but could we see the leftovers of NASA's lunar expeditions? Check out this HowStuffWorks podcast to learn more about lunar landings and telescopes.
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When you stand at the water's edge and look out toward the horizon, how far away can you actually see? Check out this HowStuffWorks podcast to learn more about the horizon and the curvature of Earth.
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