The History of Lighting and Lamps
Around 70,000 BC, the first lamp was invented. Around 70,000 BC, a hollow rock, shell, or other natural object was filled with moss and similar material. Then it was soaked in animal fat and lit. The...
Monthly Archive: November 2022
Are Glow Sticks Endothermic Or Exothermic?
Glow sticks emit light, but not heat. The glow stick reaction, which releases energy, is an exergonic reaction (energy-releasing). It is not an Exo heat-releasing (heat-releasing), reaction, however. Exothermic reactions can be considered a type of exergonic reaction. Exothermic reactions...