BrainStuff

Learn about the causes of gas (flatulence) in this podcast from Marshall Brain.

A normal calendar years is 365 days long, but the earth actually takes 365.2422 days to completely orbit the sun. Learn more about leap years in this HowStuffWorks podcast. Learn more about your...

A normal calendar years is 365 days long, but the earth actually takes 365.2422 days to completely orbit the sun. Learn more about leap years in this HowStuffWorks podcast.

The flash of a camera is bright enough to cause a reflection off the human retina -- the red we see in these photos comes from the blood vessels in the eye. Learn more about red eyes and cameras in...

The flash of a camera is bright enough to cause a reflection off the human retina -- the red we see in these photos comes from the blood vessels in the eye. Learn more about red eyes and cameras in...

Although the speed of computers is growing exponentially, the human brain may handle roughly ten quadrillion instructions per second. Learn more about the world's fastest computer in this...

Although the speed of computers is growing exponentially, the human brain may handle roughly ten quadrillion instructions per second. Learn more about the world's fastest computer in this...

A vitamin is a small molecule the body needs but cannot manufacture on its own. Learn more about vitamins in this HowStuffWorks podcast. Learn more about your ad-choices at...

A vitamin is a small molecule the body needs but cannot manufacture on its own. Learn more about vitamins in this HowStuffWorks podcast.

A company named Nanosolar is shaking up the alternative energy industry by offering solar technology at the lowest prices in history -- even cheaper than energy derived from coal. Learn more about...

A company named Nanosolar is shaking up the alternative energy industry by offering solar technology at the lowest prices in history -- even cheaper than energy derived from coal. Learn more about...

A standard HD screen has roughly 2 million pixels per frame -- but an ultra HD has four times that resolution. Learn more about ultra hi-definition in this HowStuffWorks podcast. Learn more about...

A standard HD screen has roughly 2 million pixels per frame -- but an ultra HD has four times that resolution. Learn more about ultra hi-definition in this HowStuffWorks podcast.

Shaping an airplane a certain way -- or using materials that absorb radar waves -- causes a stealth aircraft to have the signature of a small bird, rather than an airplane. Learn more about your...

Shaping an airplane a certain way -- or using materials that absorb radar waves -- causes a stealth aircraft to have the signature of a small bird, rather than an airplane.