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Cinnabar: Red, Beautiful — and Toxic
science.howstuffworks.com/environmental/earth/geology/cinnabar.htm
Cinnabar's bright-red pigment has been used in jewelry, pottery and makeup for millennia. But cinnabar is also the primary ore for mercury, making it a dangerous mineral if the particles are inhaled.
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.
What Are the 8 Phases of the Moon, in Order?
science.howstuffworks.com/phases-moon.htm
There are eight phases in the lunar cycle and the moon is in one of them every night. What are these phases of the moon?
Why the 1933 London Tube Map Is Still Considered Design Genius
science.howstuffworks.com/engineering/civil/london-tube-map.htm
Before 1933, getting around London on the massively confusing Tube system was a nightmare. That's when draftsman Harry Beck stepped in and revolutionized map design.
Did the Lost Continent of Lemuria Ever Exist?
history.howstuffworks.com/history-vs-myth/lemuria.htm
Scientists once thought it was a land bridge between Asia and Africa. Occultists saw it as a place where gigantic humans lived who were once hermaphroditic and laid eggs. Yep, it's got a colorful story.
The Oz Factor
science.howstuffworks.com/space/aliens-ufos/oz-factor-ufo.htm
The Oz Factor is a sensation that UFO witnesses experience. Learn where the term "Oz Factor" came from, and what the experience is like.
How Cars Work
auto.howstuffworks.com/car.htm
A car contains dozens of different technologies. Everything from the engine to the tires is its own special universe of design and engineering.
How to Become a Scientist
money.howstuffworks.com/how-to-become-a-scientist.htm
How to become a scientist. Visit HowStuffWorks.com to learn more about how to become a scientist.
How to Measure Car Tire Size
auto.howstuffworks.com/how-to-measure-tire-size.htm
Do you know how to measure car tire size? Find out how to measure car tire size in this article from HowStuffWorks.
Want to Save Gas? Follow That Truck!
auto.howstuffworks.com/fuel-efficiency/fuel-economy/follow-that-truck.htm
What to save gas? Follow that truck! Learn in this article how you can save gas by following behind large trucks.