I know, I'm pretty sure, you know, Hughes is a U.S. history teacher, so he's doing the best he can. But Cornupicus, I'm saying his name wrong, and Galileo are really the people that really kind of zoned in on the heliocentric idea, figuring out through astronomy that there was a universe around and that Earth was definitely not the center of it. Galileo, I'm pretty sure, was forced to recant by the time he was a teacher. And then Isaac Newton, of course, is maybe the premier scientist in the concept of gravity and really figuring out how the world worked around us. And these are important ideas because it really kind of breaks off into now that we know we can investigate and find out things, what else can we do? What else can we explore? And really the scientific method deals with the natural world, things that are proven, you know, science, astronomy, weather, geology, physics, chemistry, all the ominous.