Augustin-Jean Fresnel
Augustin-Jean Fresnel was a man who lived a long time ago and was really good at math and science. He figured out a lot of important things that make our world work. One of the most important things he figured out was that light is made up of waves. This might sound weird, but think of it like how when you drop a stone in water, it makes ripples. Light waves work kind of like that, but they are really small and you can't see them.
Fresnel also made some really cool lenses that help us see things better. You know how when you put on glasses, things get clearer? Well, Fresnel made lenses that do the same thing but are really thin and flat. They are used in things like car headlights, lighthouses, and televisions to make the picture sharper.
Overall, Augustin-Jean Fresnel was a really smart guy who helped us understand how light works and made things that help us see things better.
Fresnel also made some really cool lenses that help us see things better. You know how when you put on glasses, things get clearer? Well, Fresnel made lenses that do the same thing but are really thin and flat. They are used in things like car headlights, lighthouses, and televisions to make the picture sharper.
Overall, Augustin-Jean Fresnel was a really smart guy who helped us understand how light works and made things that help us see things better.