Jun 11 2015

Color-Changing Beads: Fluorescence from UV Light

Category: ScienceAdmin @ 11:27 am

The usual explanation for the behavior of color-changing beads is that they change color when they absorb ultraviolet light. True enough, but why? The name for this process is “fluorescence.” Some pigments absorb light of one wavelength and quickly emit ‐ fluoresce ‐ light of another (or sometimes the same) wavelength. This is similar to […]

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Aug 04 2012

New Discoveries in Oobleck Science

Category: ScienceAdmin @ 9:51 am

If you have not ever seen anyone jog on a mixture of corn starch and water – “oobleck” – check out the video from the Spanish TV show, "El Hormiguero," included in Wired Magazine’s July 11, 2012 online article, "Defying Gravity: When Strange Liquids Act Like Solids." Water and cornstarch combine to form what in […]

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Apr 09 2012

Family Life Expo & Camp Fair

This is the first in what will be a series of articles about science and math education for children, activities, learning philosophy and psychology, and a few summaries and comments about interesting education-related stories from other sources. My assistant Stan Jackson and I enjoyed the March 2012 Family Life Expo & Camp Fair, our first […]

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