With the glow wall and glow-in-the-dark water bottles and frisbees here at AstroCamp, we often get asked how exactly they work. Well, it all comes down to a phenomenon called phosphorescence. Like fluorescence, which is what you get when you shine a blacklight on something or pass electricity through a container of gas, phosphorescence involves
Read moreDa Vinci’s Parachute
Leonardo da Vinci was a mind ahead of his time. He didn’t live to see the realization of most of his thousands of pages of inventor’s notes and sketches, but his vision was practical and insightful. Modern experimenters have used updated materials and technology to bring many of his designs to life. His innovations in
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