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How Dopamine Works

science.howstuffworks.com/life/inside-the-mind/human-brain/dopamine.htm

You could call dopamine the most misunderstood neurochemical in the brain. It's allegedly the cause of people getting addicted to drugs, chocolate or video games. But what does really dopamine do?

How Dragons Work

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Dragons have captured imaginations -- and their fair share of maidens -- across the globe. But are they more than mythological?

How Dreams Work

science.howstuffworks.com/life/inside-the-mind/human-brain/dream.htm

Dreams combine verbal, visual and emotional stimuli into mystifying storylines. Learn about dreams, the meaning of common dreams, REM and controlling dreams.

How Drone Strikes Work

science.howstuffworks.com/drone-strikes.htm

We know how drone strikes are supposed to work: After careful monitoring, the bad guy is targeted and taken out. The reality is often much hazier - and deadlier.

How Drought Works

science.howstuffworks.com/nature/natural-disasters/drought.htm

What happens when the rains cease and water levels dry up precipitously? Everything from abundant grasses to apex predators suffers the consequences.

How Dust Storms Work

science.howstuffworks.com/nature/climate-weather/storms/dust-storm.htm

Though they're outranked by other, more dangerous natural phenomena, dust storms can still do serious damage to life and property. What causes these massive storms?

Dyneema is trademarked as the world's strongest fiber. Find out how this high-strength synthetic is capable of protecting an individual (or an entire vehicle) from IEDs or even shots fired from an AK47.

How Dyson Spheres Work

science.howstuffworks.com/environmental/energy/dyson-sphere.htm

Could the source of Earth's future energy come from an ambitious idea to encircle the sun with technology? Maybe, but it's a concept that's a long way from today's reality.

How Déjà Vu Works

science.howstuffworks.com/science-vs-myth/deja-vu.htm

Déjà vu is the feeling that you have experienced a situation before even though you know you haven't. Learn about déjà vu and theories behind déjà vu.

How EVP Works

science.howstuffworks.com/science-vs-myth/afterlife/evp.htm

EVP is the recording of sounds and voices onto tapes and other electronic devices. Find out what EVP is and learn how EVP is recorded and analyzed.