Episode 1: WaterIs it possible to boil water with a magnifying glass, concentrating the sunlight into the glass? Short answer, no, not under normal circumstances at least. Long answer, it depends on how big the magnifying lens is, what you put the water... Episode 1: WaterIs it possible to boil water with a magnifying glass, concentrating the sunlight into the glass? Short answer, no, not under normal circumstances at least. Long answer, it depends on how big the magnifying lens is, what you put the water in, how protected it is from wind, and how lucky you are. I used a fresnel lens, an ordinary fire starting magnifying lens, a modified magnifying mirror that served as a concentrating mirror, and a pot full of black dirt. Despite abundant sunshine, the water temperature never rose above 140 degrees Fahrenheit, or 60 degrees Celsius, that's the average hot water setting in a home. Even "cheating" by dropping a black metal hole punch for a drill (and later a piece of wire wool) couldn't get this to work, despite the sun being concentrated directly onto the object. I sunk about two days into this, and it a letdown akin to the "dry ice in oil" that I did back in 2016 where it just cooled the oil by 20 degrees. At least you get to see some dirt catch fire, so it's not completely pointless.My conclusion: Unless you use a fresnel lens the size of a door in optimal conditions to concentrate the sunlight, have some kind of metal canteen (and a few hours to kill), and are willing to drink water that tastes like burnt metal, you're better off just doing it the traditional way of using the magnifying glass to ignite a piece of wood, then build a fire and use that to boil the water. While technically possible (as various videos have shown), directly using the sun to boil water is t impractical for the average person. Any videos claiming to be using the smell lenses I used in a glass container were likely leaving out some key details."Agnus Dei X" Kevin MacLeod (incompetech.com)Licensed under Creative Commons: By Attribution 3.0 Licensehttp://creativecommons.org/licenses/b... Disclaimer: The following demonstration is meant for educational purposes only and not as a "how to" guide or "DIY" video.