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Marcia, Marcia, Marcia!: 'The Brady Bunch' Quiz
play.howstuffworks.com/quiz/brady-bunch-quiz
"The Brady Bunch" is that rare instance of a show that became more popular in syndication. More than 40 years after its cancelation, it's still going strong. Take this quiz and test your Brady knowledge.
Understanding Interval Notation in Mathematics
science.howstuffworks.com/math-concepts/interval-notation.htm
Mathematicians use something called interval notation to convey information about a range of values in a way that's clear and easy to understand. This form of writing is necessary because intervals are common concepts in calculus, algebra and statistics.
You Can Get Pregnant When You're Already Pregnant
Is it possible for a woman to get pregnant when she's already pregnant? HowStuffWorks looks at superfetation.
Why DNA Evidence Can Be Unreliable
science.howstuffworks.com/why-dna-evidence-can-be-unreliable.htm
DNA found at a crime scene doesn't automatically mean the person matching it is guilty, say researchers of new forensics guide.
Why Didn't Evolution Give Us the Ability to Smell Fresh Water?
science.howstuffworks.com/life/evolution/humans-smell-fresh-water-evolution.htm
You'd think being able to smell drinkable water would be an evolutionary advantage. But we can only smell things that suggest potable water. Why is that?
What's the Difference Between a Cave and a Cavern?
science.howstuffworks.com/environmental/earth/geology/cave-cavern-difference.htm
One term might give you the impression of something grand and mysterious, while the other makes you think of claustrophobia-inducing environs that threaten human life. But what's the real difference?
Centrioles: You Can't Divide Cells Without Them
science.howstuffworks.com/life/cellular-microscopic/centriole.htm
Centrioles are spindles that create the pathways for chromosomes to follow during cell division.
How Many Legs Does a Millipede Really Have?
animals.howstuffworks.com/arachnids/millipede-legs.htm
If you think the answer is 1,000, you're way way off.
The Truth About Cloud Storage and Its Future
computer.howstuffworks.com/cloud-computing/truth-about-cloud-storage-and-its-future.htm
Behind cloud storage is a complicated system for storing your data on countless hard drives and magnetic tapes. Learn more at HowStuffWorks.
Are animals still evolving?
science.howstuffworks.com/life/evolution/are-animals-still-evolving.htm
Evolution is a never-ending process, but some scientists believe it might be speeding up as human activity impacts the environment.