Stuff You Should Know

Blushing from embarrassment is governed by the sympathetic nervous system, which governs involuntary processes. Although we know how people blush, we still don't understand why. Check out the theories of blushing in our HowStuffWorks article.

See omnystudio.com/listener for privacy information.

Carbon capture is the process of trapping carbon emissions and storing them away from the atmosphere to prevent global warming. Check out our carbon capture article at HowStuffWorks.com to learn more about the possibility of reducing carbon emissions.

See omnystudio.com/listener for privacy information.

In 2005, The Sun reported that dogs were being used as live bait in the Indian Ocean. Is it possible that dogs are a delicacy to sharks? Take a look at our HowStuffWorks article to learn more about the diet of sharks.

See omnystudio.com/listener for privacy information.

Although it can be intimidating, a shark is not invulnerable. Punching its nose, gouging its eyes, or grabbing its gills can stun the shark and give victims a chance to escape. Check out our HowStuffWorks article to learn more about shark attacks.

See omnystudio.com/listener for privacy information.

The unsolved murder spree of Jack the Ripper has captivated generations of amateur investigators, each with their own theory of the killer's identity. Learn more about one particularly thought-provoking suspect in this HowStuffWorks podcast.

See omnystudio.com/listener for privacy information.

Personal rapid transport combines the best traits of subways and taxis, and costs less to build than light rail. Could this be the future of transportation? Check out this HowStuffWorks podcast and learn more about personal rapid transport.

See omnystudio.com/listener for privacy information.

Cities can become abandoned for a number of reasons, from economic meltdowns to nuclear catastrophes. Check out this HowStuffWorks podcast and learn more about modern abandoned cities.

See omnystudio.com/listener for privacy information.

Murphy's law originates in 1949, and states 'anything that can go wrong, will.' Check out this HowStuffWorks to learn more about how the Air Force discovered Murphy's law.

See omnystudio.com/listener for privacy information.

Could high-end digital auto systems such as blind-spot detection and collision prevention overcome the errors of human drivers? Check out this HowStuffWorks podcast to learn more about the death-proof cars of the future.

See omnystudio.com/listener for privacy information.

Oil shale is a term for oil trapped in rock, rather than existing in liquid form. Check out this HowStuffWorks podcast to learn more about the nature of oil shale.

See omnystudio.com/listener for privacy information.