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History's Deadliest Colors Ted-Ed

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Last updated about 3 years ago
7 questions
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Let's begin...
When radium was first discovered, its luminous green color inspired peop Embed le to add it into beauty products and jewelry. It wasn’t until much later that we realized that radium’s harmful effects outweighed its visual benefits. Unfortunately, radium isn’t the only pigment that historically seemed harmless or useful but turned out to be deadly. J. V. Maranto details history’s deadliest colors.
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Question 6
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Despite its deadly side effects, lead white was so popular that it wasn’t banned until the 1970s. What was it about this pigment that made it so popular?

Question 7
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List some uses for the bright green pigments Paris and Scheele's green.

Copyright: https://ed.ted.com/on/ysrmXWTE
When first discovered, radium was added to toothpaste, medicine, beauty products, jewelry, water, and food because of claimed ____________ and its _____________.
Restorative properties
Longevity and persistence
Color
Taste
A and C
Lead, while helping to produce a bright white pigment, can be dangerous to humans. How?
It is directly absorbed into the body
Once in the nervous system it mimics and disrupts the function of calcium
It can cause high blood pressure or learning disabilities
All of the above
The bright green pigments found in Scheele’s and Paris Green were later found to contain:
Cupric hydrogen arsenic
Lead
Radium
Cadmium
The synthetic green pigment recipe from 1822 was later revamped in the 1900’s as a formula for:
Wall paper dye
Fabric dye
Insecticides
Food coloring
During World War II, uranium oxide was confiscated for:
Warning signs
Ceramic glazes
Bomb building
Glass production