I touched a metal screw after cutting the tip off, not thinking about how hot it was, and burned the threads into my fingerDivesPater OP t1_ixoit2u wrote
Reply to comment by Whatsallthefussabou1 in I touched a metal screw after cutting the tip off, not thinking about how hot it was, and burned the threads into my finger by DivesPater
>According to the law of conservation of energy, no energy is destroyed due to friction, though it may be lost to the system of concern. Energy is transformed from other forms into thermal energy. A sliding hockey puck comes to rest because friction converts its kinetic energy into heat which raises the thermal energy of the puck and the ice surface. Since heat quickly dissipates, many early philosophers, including Aristotle, wrongly concluded that moving objects lose energy without a driving force.
Whatsallthefussabou1 t1_ixojvbq wrote
I took my warm hands out of roasty warm gloves as a small child and plunged them into the snow, I quickly learned cold things can feel like it burns also.
What actually happens is the frozen water forms ice crystals, which damage the skin cells. the blood vessels constrict, reducing blood flow and delivery of oxygen to the area also know as Raynaud's phenomenon, it can feel painful when warming the area back up and the blood flow returns to normal again however it causes swellings that can also look like a burn some times. 🤷🏻♂️ It’s amazing how the body reacts to things isn’t it?
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