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Become a channel member and support my expensive experiments - you also benefit from cool advantages☺️: Become a channel member and receive exclusive advantages: / @jjchemistry 0:00 Intro 0:29 Green fluorescence 1:57 Afterglow in red, green & blue for hours (persistent luminescence) 3:44 Taking the glow out of phosphors with cold 4:46 [-78 °C] cold dry ice, making carbon dioxide with dry ice 6:08 Dry ice inflates gloves (sublimation) 7:06 Making dry ice with liquid nitrogen 8:03 [-196 °C] cold liquid nitrogen 9:30 Measuring the temperature of liquid nitrogen 9:47 [-183 °C] cold, blue liquid oxygen 10:10 Liquid oxygen intensifies (plastic) fires 12:06 Liquid oxygen as a kickstarter for a small campfire 13:24 Generate a giant rain cloud with liquid nitrogen