In sixth grade classes we read the biography of Bob and Joe Switzer, who are brothers who invented fluorescent paints. The pair, who were born in the early 1900's, did not start out as inventors; Bob wanted to become a doctor while Joe was interested in magic tricks. When Bob received a severe concussion and had to spend a lot of time in the family's basement out of the light, Joe spent time with Bob and in the darkness began experimenting with ultraviolet lamps. These lamps made objects glow in the dark, and Joe hoped to use this effect in his magic shows. The boys continued experimenting with different chemicals that would glow under the ultraviolet rays, and made paints that would not only spice up Joe's magic acts but could also be sold to brighten up store displays.The brothers continued to improve on the paints, making glowing reds, yellows, and greens that glowed in both daylight and ultraviolet light. These paints were not only used for fun and magic, but were used in war efforts to send signals to airplanes flying overhead and help them land in the dark or in lifeboats to improve visibility.
The author's note includes information about how fluorescence works, with additional links to the web. I then told them that without these fluorescent colors we would not have the book...
Creepy Pair of Underwear!!! Which of course we had to read.
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