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The Bizarre Link Between van Gogh's Signature Yellow and Cow Urine
entertainment.howstuffworks.com/arts/artwork/indian-yellow-pigment.htm
The bright yellow hue used to great effect by van Gogh and other painters was eventually outlawed, as it was made of urine from dehydrated cows.
Portland Cement: A Concrete History With Structural Integrity
science.howstuffworks.com/innovation/inventions/portland-cement.htm
Invented in 1824, Portland cement remains prominent in modern construction. Learn about the hydraulic binder's raw materials and applications.
Does Your Home Need a Whole-house Surge Protector?
electronics.howstuffworks.com/whole-house-surge-protector.htm
A whole-house surge protector can defend an entire house from voltage spikes coming off the electrical grid.
The Spiritual and Emotional Meaning Behind Teardrop Tattoos
people.howstuffworks.com/culture-traditions/body-art/tear-drop-tattoo-meaning.htm
The teardrop tattoo holds a dark secret most people don't know. Discover the shocking prison origins, how its placement changes everything, and why this small ink mark can tell someone's entire life story without saying a word.
How the Digestive System Works
health.howstuffworks.com/human-body/systems/digestive/digestive-system.htm
The digestive system absorbs and transports all the nutrients your body needs. Learn more about the digestive system.
How Men Work
people.howstuffworks.com/men.htm
The idea that men are better at math and science than women are is one of many stereotypes that doesn't hold up well under scientific scrutiny. Learn exactly what makes men different from women and find out whether other common perceptions about men are accurate.
How Women Work
people.howstuffworks.com/women.htm
If you believe what you see on TV, women are inscrutable, conniving, hysterical and apt to change their minds without reason or warning.
How Virtual Reality Works
electronics.howstuffworks.com/gadgets/other-gadgets/virtual-reality.htm
Virtual reality uses a computer to create a simulated three-dimensional world. Find out how virtual reality works and learn about the future of virtual reality.
Nature Craft Projects for Kids
lifestyle.howstuffworks.com/crafts/nature-crafts/nature-craft-projects-for-kids.htm
Nature craft projects for kids are fun, and kids will learn a lot too! Learn to do all sorts of nature craft projects for kids at HowStuffWorks.
How Does an Invisibility Cloak Work?
science.howstuffworks.com/invisibility-cloak.htm
With optical-camouflage technology, the invisibility cloak is a reality. Learn what it is.