Talk:Setsubun 2018/@comment-202.80.216.124-20180127052804/@comment-202.80.216.124-20180127101455

o yeah, i kinda get it now

the bigger heat differences, the more energy will be transfered from the hotter to the colder object, and the more energy transfered between them, the more damage it will be caused on the surfaces of both them

imagine like your hand and a dry ice block, when you touch it for a long time, your hand will be burned because of the heat transfer between your skin's surface and the dry ice's surface. i think it will be the same with the overheated phone and cold casing/phone jacket :/