A long time ago (ca 260 BC) Eratosthenes used measurements of sun shadows in different places to calculate the cincumference of the earth. He got it pretty much right with an error... moreA long time ago (ca 260 BC) Eratosthenes used measurements of sun shadows in different places to calculate the cincumference of the earth. He got it pretty much right with an error of less than 4 %.What if Eratosthenes had been trying to calculate the distance to the sun instead of the circumference of the earth using his method. Would it be possible? - Why or why not?link: https://www.ancient.eu/Eratosthenes/
A friend of mine has a historic home (built in the 1920s) and I'm interested to know what it originally looked like. It has been remodeled and has some obscure additions that don't... moreA friend of mine has a historic home (built in the 1920s) and I'm interested to know what it originally looked like. It has been remodeled and has some obscure additions that don't make any sense by modern standards. Lots of windows were left inside the home. You have to walk through a bathroom or another bedroom to get to the master bedroom. I'm pretty sure it was built with no plumbing and for sure before AC. The kitchen is not even big enough for a standard oven- the oven sits inside what appears to be an add-on to the home. Either that or they carved out part of the kitchen to add a bathroom after people started getting plumbing. (The bathroom has a window that overlooks the oven's nook. lol) Weirdest yet, all the bedrooms are connected. One bathroom has no door and looks like it never did, but there used to be a closable door between the living room and kitchen. I can tell they've repurposed every single room over the years, but I can't for the life of me figure out what the original builder intended when t... less
