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Your search for "scientific theory" returned 559 results
What's the Malthusian premise?
science.howstuffworks.com/life/evolution/malthusian-premise.htm
The Malthusian premise centers on the issue of whether or not there will be enough food to sustain human life. Learn about the Malthusian premise.
Does the Higgs boson exist?
science.howstuffworks.com/science-vs-myth/everyday-myths/higgs-boson-exist.htm
As of July 4, 2012, the Higgs boson (maybe) exists (or at least something very like it very probably does).
Yes, the Bobbit Worm Is Real and Somewhat Terrifying
animals.howstuffworks.com/marine-life/bobbit-worm.htm
Yes, this terrifying worm was named after the infamous Bobbitt case. And with good reason.
Why Fido Follows You Everywhere, and Why That's Awesome
animals.howstuffworks.com/pets/why-dogs-follows-us.htm
Dog owners know: Their four-legged friends are stuck to them like Velcro. But why? Are they afraid of being left behind, or is it something else?
Is humid air heavier than dry air?
science.howstuffworks.com/nature/climate-weather/atmospheric/is-humid-air-heavier-than-dry-air.htm
If humid air is just air plus water, then it has to be heavier than dry air, right? Sure, if it was only a matter of simple addition, but molecular physics is a lot like a bouncer at a club: Nothing gets in unless something else goes out.
5 Incredible Things You'll Learn in Sixth Grade
people.howstuffworks.com/5-incredible-things-you-learn-in-sixth-grade.htm
What sorts of things do you learn in the sixth grade? Find out what five incredible things your child will learn in sixth grade.
Do Marfa Lights Come From UFOs, Cars, the Military or Ghosts?
science.howstuffworks.com/science-vs-myth/unexplained-phenomena/marfa-lights.htm
You would have to drive 500 miles (805 km) east of the tiny desert town called Marfa to reach Dallas, and just 60 miles Southwest would take you to the Rio Grande and the Mexican border. This desolate landscape is dominated by Mitchell Flat, broken intermittently by low, rolling peaks of the Chinati Mountains.
How does pregnancy affect the senses of smell and taste?
Pregnancy often affects the senses of smell and taste. Learn theories about why pregnancy affects the senses of smell and taste.
Is wheat toxic?
health.howstuffworks.com/diseases-conditions/allergies/food-allergy/wheat-gluten/wheat-toxic.htm
Some people say that wheat has compounds in it that make it addictive. But is this true? Find out if wheat is toxic at HowStuffWorks.
Why would circumcision decrease a man's risk of contracting AIDS?
science.howstuffworks.com/environmental/life/cellular-microscopic/circum-aids.htm
The results of three recent studies show that an uncircumcised man is twice as likely to contract AIDS from an infected woman as is a circumcised one.