Thank you @maticpecovnik.. now I understand a bit, it is not something to cool the reactor.. but the interaction between the plasma and tokamak reactor to producr energy. You really help me to understand it... well, because I'mnot so into science but I like reading something about it.. it make me curious now.

I'll read about the fusion then.. at least I will know about different topic in this world, curiousity won't hurt if it is only for reading, right 😊 this is what I like from steemit, I read and then I can ask the author right away. Thank you for your time to reply my comment too.👋