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How Vestigial Organs Work
health.howstuffworks.com/human-body/parts/vestigial-organ.htm
Vestigial organs are like the body's junk drawer. Learn about the body's vestigial organs and how Darwin's idea of common descent might explain them.
What Is Radar?
science.howstuffworks.com/radar.htm
Radar is used to track storms, planes, and weapons and also to create topographic maps. Learn about radar, radar technology and Doppler shift.
How Alligators Work
animals.howstuffworks.com/reptiles/alligator.htm
Alligators are amazing animals that have been around for millions of years. Learn about alligators and find out what makes alligators the perfect predator.
What's the world's hardest puzzle?
entertainment.howstuffworks.com/puzzles/worlds-hardest-puzzle.htm
What is the world's hardest puzzle? There are a lot of challenging puzzles out there, but find out which one is the world's hardest puzzle.
How Russian Traditions Work
people.howstuffworks.com/culture-traditions/national-traditions/russian-tradition.htm
Many Russian traditions first began hundreds of years ago. Read about Russian traditions at HowStuffWorks.
10 Must-have Accessories for Vacation
lifestyle.howstuffworks.com/style/accessories/10-accessories-for-vacation.htm
Knowing what accessories to have for vacation can make packing easier. Take a look at these 10 must-have accessories for vacation at HowStuffWorks.
Is This the Name of a Real or Fake Organ?
play.howstuffworks.com/quiz/is-this-the-name-of-a-real-or-fake-organ
It is commonly accepted that there are 78 organs in the human body. Can you tell the difference between a real organ and a made-up one? Take this quiz to prove your organ knowledge!
How Exploding Head Syndrome Works
science.howstuffworks.com/life/inside-the-mind/human-brain/exploding-head-syndrome.htm
You're deep in dreamland when you hear an explosion so loud you wake up. But there's nothing outside or inside your house making the noise. What just happened?
Vagus Nerve Stimulation for Depression
health.howstuffworks.com/mental-health/depression/facts/vagus-nerve-stimulation-for-depression.htm
Vagus nerve stimulation may help people who are diagnosed with treatment-resistant depression. Learn about the pros and cons of vagus nerve stimulation.
75 of the Hardest Riddles (With Answers) to Test Your Brain
lifestyle.howstuffworks.com/family/activities/hardest-riddles.htm
Challenge yourself with some of the hardest riddles we could find so you can keep your mind sharp! As you tackle these tricky brain teasers, you'll engage your mind in a way that few other activities can.