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Why does it take my eyes several minutes to adjust to darkness?

health.howstuffworks.com/human-body/systems/eye/eyes-adjust-darkness.htm

At night, your eyes adjust to darkness after several minutes. Do you know why it takes that long? Take a look at how your eyes adjust to darkness.

How does the sense of smell work?

health.howstuffworks.com/mental-health/human-nature/perception/question139.htm

What causes smell? When I walk into a bakery, I smell the bread. What actually has happened? Do objects give off pieces of matter? What has entered my nose to cause the sensation of smell?

What is a tank engine, as in Thomas the Tank Engine?

science.howstuffworks.com/transport/engines-equipment/question275.htm

Thomas the Tank Engine is a merchandising phenomenon that includes small wooden train sets, video tapes, books, clothing, an official Web site and tons of fan sites. But wait, what exactly is a "tank engine" anyway?

What is the difference between a fluorescent light and a neon light?

home.howstuffworks.com/question293.htm

Have you ever wondered what the difference is between a fluorescent light and a neon light? We'll explain both technologies in this article.

What causes the loud banging noise in my home's pipes?

home.howstuffworks.com/question89.htm

What causes the loud banging noise in my home's pipes? For example, when I turn off the faucet I hear it. Is there a way to prevent it?

How can children from the same parents look so different?

science.howstuffworks.com/life/genetic/question92.htm

How can children from the same parents look so different? I mean, why don't all kids from the same parents look exactly alike, since the parents just have one set of chromosomes each and they don't change?

What Is Imitation Crab Meat? Is the Crab Substitute Vegan?

recipes.howstuffworks.com/what-is-imitation-crab.htm

If you've had a grocery store California roll or mixed seafood salad, you've probably eaten imitation crab meat. But what is imitation crab, exactly?

'Sea Bees', Please! Tiny Crustaceans Help Pollinate Underwater

animals.howstuffworks.com/marine-life/sea-bees-please-tiny-crustaceans-help-pollinate-underwater.htm

Pollination of plants underwater involves animals as well as water flow. HowStuffWorks Now explains how.

Humuhumunukunukuapua'a: A Long Name for a Little Fish

animals.howstuffworks.com/fish/triggerfish.htm

Humuhumunukunukuapua'a, the colorful little fish with the craaaaazy long name, is Hawaii's state fish, but it wasn't always.

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