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The Singularity by 2045, Plus 6 Other Ray Kurzweil Predictions

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Ray Kurzweil predicts that the singularity (artificial intelligence surpassing human intelligence) will happen by 2045. Learn more at HowStuffWorks.

How Serial Killers Work

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Serial killers are people who murder three or more people over a long period of time. Learn about serial killers and what makes serial killers tick.

How does someone become a saint?

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On Sunday, Pope John Paul II beatified Mother Teresa, bringing the late nun and revered humanitarian a step closer to sainthood. Learn about the Roman Catholic Church's canonization process.

When It Comes to Air Pollution, the Tiniest Particles Might Be the Worst

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Ultrafine particle pollution isn't yet regulated under federal air quality laws. HowStuffWorks takes a closer look at ultrafine particle pollution.

Feeling Hungry? Tired? Moody? Thank Your Hypothalamus

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The hypothalamus works with the pituitary to keep the body in homeostasis. HowStuffWorks checks out this tiny workhorse.

Is Sapiosexuality a Real Thing?

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Does sapiosexuality really exist? HowStuffWorks raises an eyebrow and takes a look.

Top 10 April Fools' Day Pranks

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April Fools' Day is a day for pranks, shenanigans and general tomfoolery. Check out HowStuffWorks' top 10 April Fools' Day pranks.

Can melatonin help you sleep better?

health.howstuffworks.com/mental-health/sleep/basics/melatonin-sleep.htm

Can melatonin help you sleep? Read on to discover if melatonin supplements can be a sleep aid and the connection between melatonin and sleep.

How Fainting Goats Work

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Fainting goats have been a source of humor in web videos and out in the fields. Learn why fainting goats faint and why fainting goats are bred.

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