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Go with the Glow

Surela

Did you think that glow-in-the-dark is exclusively for kids, meant to add a cool touch to a camp night activity or birthday party? Think again! Glow-in-the-dark is a lot more than glowing bracelets, balloons, bubbles, and glow sticks.

Wednesday, January 16, 2013

glow jelly fish mishpachaFrom newborn babies to knowledgeable scientists, people are fascinated with glowing objects that can light up a room without a visible bulb, match, or battery. Scientists, especially chemists, have spent a lot of time trying to figure out what makes glow-in-the-dark objects glow, and they’ve discovered that this light is unlike typical light sources.

Typical light sources, called incandescent heat, cause hot atoms to collide with each other, which creates energy, resulting in light and heat. In contrast, glow-in-the-dark light comes from a luminescent light source, which absorbs energy from something other than heat and is released as light. So, no, these light-up toys don’t shine because of nothing. There’s a lot of chemical activity going on backstage that we never even think about.

 

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