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Brainstuff Videos by Popular

What is dynamite? How does it work?

Dynamite is a type of chemical explosive. Discover how explosives from gasoline to dynamite work in this episode of BrainStuff. tags: blasting_capbrainstuffchemical_explosivedynamitegasoline_explosivehowstuffworksnitroglycerin

How do cats purr?

Cats tend to purr when they're happy, but pleasure isn't the only reason for this behavior. And they aren't the only animals who purr. Find ... tags: big_cats_purrbrainstuffcatsdo_raccoons_purrhowstuffworkspurrScience_Medicine

What is a rice krispy?

Like many cereals, rice krispies are made by puffing grains -- in this case, rice. Find out how rice crispies and other puffed cereals are ... tags: brainstuffcerealhowstuffworkspuffed_cerealspuffingrice_crispiesrice_krispy

Why do batteries die but then come back to life?

Batteries, particularly car batteries, seem to go dead and then come back to life after a resting period. How does this self-recharging ... tags: backbatteriesbrainstuffcomediehowstuffworkslife

How do artificial flavors work?

Artificial flavors imitate natural flavors and are found in many processed products. Learn more about the chemistry of flavors, both ... tags: artificial_flavorsbrainstuffestershowstuffworksnatural_flavorsScience_Medicinesmell

Is there any way to see satellites that are in orbit?

There are hundreds of satellites orbiting the Earth, but it's not always easy to see them. Get Marshall's tips on how to spot satellites in ... tags: asynchronous_orbitbrainstuffgeosynchronous_orbithowstuffworkssatelliteScience_Medicinesee

Why can't we breathe underwater?

Water is made up of hydrogen and oxygen, so why aren't we able to breathe underwater Find out in this episode of BrainStuff. tags: brainstuffbreathecan'tH20howstuffworkshydrogenoxygen

What is leather and where does it come from?

Most leather is made from processed cattle skin, although synthetic and other varieties exist. Learn more about leather in this episode of ... tags: brainstuffchromiumcow_skinhowstuffworksleatherrawhideScience_Medicine

How do satellites orbit the earth?

In this episode of BrainStuff, Marshall explains the physics behind satellites and orbits. tags: brainstuffcurvatureearthfree_fallhowstuffworksorbitsatellites_orbit_earth

How can you measure the height of a tall tower?

In this episode of BrainStuff, Marshall reveals three common techniques for measuring the height of tall objects like towers. tags: brainstuffbroomstickheight_of_towerhowhowstuffworksmeasureobjects

How does a magneto work?

A magneto is a kind of electrical generator used in small gasoline engines in lieu of a battery. Find out how magnetos work in this episode ... tags: armaturebrainstuffelectrical_generatorelectromagnetgeneratorhowstuffworksignition

Why do tools have "drop forged" stamped on them?

Tools that say 'drop forged' have been created using a technique called drop forging. Find out how drop forging and several other kinds of ... tags: brainstuffcold_forgingdiesdrop_forgingforgehowstuffworkspress_forging