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How Tessellations Work
science.howstuffworks.com/math-concepts/tessellations.htm
Mathematics achieves the sublime. Sometimes, as with tessellations, it rises to art. In their simplest form, tessellations consist of a single shape that repeats over a two-dimensional plane without any gaps. Why was M.C. Escher so fixated on them?
Are zebras black with white stripes or white with black stripes?
animals.howstuffworks.com/mammals/zebra-stripes.htm
Whether you think zebra stripes are black or white, you can't deny they make a fashion statement. Learn how zebra stripes form and what color they are.
What causes aging?
health.howstuffworks.com/wellness/aging/aging-process/aging-causes.htm
Aging causes include both genetic and environmental factors. Find out what research says about aging causes and rates of aging.
How can salamanders regrow body parts?
animals.howstuffworks.com/amphibians/salamander-regrow-body-parts.htm
A salamander can regrow body parts -- and scientists are studying it to figure out how humans can. Learn how a salamander can regrow body parts.
Are we 10 years away from artificial life?
science.howstuffworks.com/life/genetic/artificial-life-news.htm
Artificial life could exist as soon as 10 years from now, according to an Associated Press article published in 2007. Learn about artificial life.
How Aliens Work
science.howstuffworks.com/space/aliens-ufos/alien-physiology.htm
Alien life forms would probably differ from those on Earth but still adhere to certain principles. Learn about astrobiology and the search for alien life forms.
How Nerves Work
health.howstuffworks.com/human-body/systems/nervous-system/nerve.htm
Nerves are what sense the world around you and pass that information along to your brain. Learn about nerves and see how the nervous system works.
How long can scorpions live without food or water?
animals.howstuffworks.com/arachnids/scorpion-live-without-food-or-water.htm
Scorpion food consists of protein sources like insects and other scorpions, but they don't eat very often. Read about scorpion food and when they eat.
How Photosynthesis Captures Light and Powers Life on Earth
science.howstuffworks.com/life/cellular-microscopic/photosynthesis.htm
No life, except possibly very small bacteria, would exist on Earth without photosynthesis.
Why do a child's bones heal faster than an adult's?
health.howstuffworks.com/human-body/systems/musculoskeletal/children-bones-heal-faster.htm
To heal bones faster, you might want to revert to childhood. But why do a child's bones heal faster than an adult's, anyway? Let's learn about bones.