The Most Misunderstood Concept in Physics

this is a video about one of the most important yet least understood Concepts in all of physics it governs everything from molecular collisions to humongous storms from the beginning of the universe through its entire Evolution to its inevitable end it may in fact determine the direction of time and even be the reason that life exists to see the confusion around this topic you need ask only one simple question what does the Earth get from the Sun what does the Earth get from Sun um well it's light rays what do we get from the Sun warmth warmth light vitamin D we get vitamin D from we do get vitamin D from the ultraviolet rays well a lot of energy what does the Earth get from this energy yeah it's energy energy nailed it every day the Earth gets a certain amount of energy from the Sun and then how much energy does the Earth radiate back into space relative to that amount that it gets from the Sun probably not as much I you know I don't believe that it's it's just radiating right back I would say less less I say less I'd guess about 70% I think it's a fraction I'd say 20% because because we use some of it we use some of the energy we consume a lot right but the thing about energy is it never really goes away you can't really use it up it would have to break even wouldn't it same amount yeah you know cause and effect it be equal in some ways right for most of the Earth's history it should be exactly the same amount of energy in from the Sun as Earth radiates into space wow because if we didn't do that then the Earth would get a lot hotter that'd be a problem that'd be a big problem so if that is the case y then what are we really getting from the Sun that's a good question h it gives us a nice 10 it gives us a nice 10 I love it we're getting something special from the Sun I don't know what do we get without the energy but nobody talks about it to answer that we have to go back to a discovery made two centuries ago in the winter of 1813 France was being invaded by the armies ...