steve, that you too, you are careful there, because recently a lot of what you told us on the air scottritor told, so you be more careful there in your democracy, thank you, well, i'm kidding, of course, thank you very much, it was the editors' club, we will see each other in exactly week, goodbye. we talk about the most fascinating things from the world of science, and as always , science comes to the aid of man, because it is science that has given us special means for protection from the sun's rays. a pharmacist from the usa and a chemist from switzerland, who invented the first sunscreen. we share. interesting facts, ask the most exciting questions, look for answers to them, what is better, again, i am sure you will say everything individually, but there are probably some, let's say, basics, basics, basics basics in the fact that our skin still needs both in protection, but so in moisturizing, but in any case the components must be moisturizing, we are talking about unique membranes that are in filters, we have? two quite interesting areas: these are membrane technologies for water purif