How Can Water Ice and Steam Exist At Once

the Joe Rogan experience how does dry ice work it's just frozen carbon dioxide that's all so here's the difference here's the difference you have block of frozen h2o and block of frozen co2 so there they are it turns out the air pressure on earth is high enough it's sea level is high enough to allow the ice to melt and sustain liquid state okay the co2 under air pressure normal air pressure it wants to melt but it can't sustain liquid and it goes straight to gas if we had much higher air pressure you could you could have co2 melt and have liquid co2 so now watch what happen so-so okay kind of blow your mind again this is just this is really good stuff okay it's good like physical chemistry so here you go so watch what happens so what happens if reduce the air pressure okay well the transition from ice to water is still the same that's not affected but the boiling point is affected as you know cooking times have to be adjusted on mountaintops because when you boil water it's not 212 degrees depending on the height of the mountain there's less air pressing down that that's preventing it from boiling okay the boiling point is not some absolute fact about the water it has to do with what the air pressure is sitting above it if you have extremely high air pressure water has to go to much higher temperature before it boils so our so the boiling point of water that's reported in all textbooks is at sea level at one atmospheric pressure that's how you get 212 degrees if you start reducing the atmospheric pressure it's 210 degrees 205 degrees 200 degrees 190 degrees 180 degrees 180 yes and so that's not as hot as 212 degrees so you got to cook the food longer all cooking times are increased for this reason so now watch I'm not done with you let's keep reducing the air pressure okay theoretical like possible no no Himalayas yeah but or take it up you can ascend in some kind of copter or some kind of device our air balloon or whatever but I'm saying you can do this experiment in laboratory okay okay you keep reducing the air pressure boiling port keeps dropping it's hard in 70 degrees 150 or in 20 hundred degrees Fahrenheit eighty degrees Fahrenheit fifty degrees Fahrenheit forty degrees Fahrenheit thirty-two degrees Fahrenheit holy shed what happens the ice melts and becomes water the water evaporates and becomes steam and all of that's happening at 32 degrees there is an atmospheric pressure for which water ice and steam coexist and it's called the triple point of water and all ingredients have triple point what is Mars Mars is very close to the triple point of water so you can have you can have simultaneous bath in certain regions of Mars simultaneous bath because the air pressure is so low it's like one one-hundredth Earth's air pressure it's very very low so you know place where pot of water ice cubes and steam are coming out all at once it's at the triple point so so so here's the lesson here is we live life in our world at one atmospheric pressure at one the room temperature atmospheric pressure and we define what is normal based on that life experience based on how our senses interact with that environment but the actual universe is far freakier than what we that what our senses are exposed our five senses are exposed to on earth