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Your search for "cause" returned 9,094 results
What Do Reindeer Do When They're Not Pulling Santa's Sleigh?
animals.howstuffworks.com/mammals/reindeer.htm
HowStuffWorks takes a look at reindeer, those super flying sleigh pullers of Christmas Eve.
Cinnabar: Red, Beautiful — and Toxic
science.howstuffworks.com/environmental/earth/geology/cinnabar.htm
Cinnabar's bright-red pigment has been used in jewelry, pottery and makeup for millennia. But cinnabar is also the primary ore for mercury, making it a dangerous mineral if the particles are inhaled.
The Shocking Story of Lina Medina, Who Gave Birth at Age 5
health.howstuffworks.com/pregnancy-and-parenting/pregnancy/conception/lina-medina.htm
The world's youngest mother, Lina Medina, gave birth to a healthy baby boy at age 5 in 1939. But how could that happen?
How the Pneumatic Tire Keeps the Our World Going 'Round
science.howstuffworks.com/innovation/inventions/pneumatic-tire.htm
The pneumatic tire revolutionized transportation and a number of other industries that rely on air-cushioned rubber tires.
What Are Muscle 'Knots' and How Do You Get Rid of Them?
health.howstuffworks.com/human-body/systems/musculoskeletal/muscle-knots.htm
Surely you've had a knot in your neck at some point. But your muscles really aren't tied in knots. Or are they?
Store Shelves Still Empty? Blame the 'Bullwhip Effect'
money.howstuffworks.com/bullwhip-effect-news.htm
Product shortages on everything from cars to computer chips continue unabated. At the root of most is the "bullwhip effect." But what is it?
What Is It Like in the Eye of a Tornado?
science.howstuffworks.com/nature/natural-disasters/eye-of-tornado.htm
The eye of a tornado isn't something that most of us see. Usually, if you see a tornado you go and hide. But let's look into the eye of a tornado.
How does chlorine work to clean swimming pools?
science.howstuffworks.com/innovation/science-questions/question652.htm
How does chlorine work to clean swimming pools?
How does acupressure work?
health.howstuffworks.com/wellness/natural-medicine/alternative/question654.htm
When I get a headache, my friend presses a spot on my hand. Somehow, this makes my headache go away. How does this work?
How does a magneto work?
science.howstuffworks.com/question375.htm
I am curious about the ignition system in my lawn mower. I know that a spark plug creates a high-voltage spark, and I know in my car the electricity for the spark comes from the battery. My lawn mower doesn't have a battery, so where does the electricty come from?