halp

lol unprecedented? The entire country of LA would not exist without the early-LA government buying up water rights in the eastern sierras to pipe to LA, and then telling the local farmers there they were shit outta luck the first time drought hit.

If anyone is interested in Western US water rights - Cadillac Desert by Marc Reisner is a great book. I usually recommend at least the first quarter of it, as it gets pretty dry and repetitive in the second half. But the first couple chapters talk about the first expedition down the Colorado River and early water rights, which was super interesting. Second half of the book mostly goes over large water projects like dams and aquaducts.

basic astronomical observations

No, this is not basic. I should really not engage with a troll, but for anyone else curious about why this is cool:

Current estimates on the size of the sun are on the order of ±1000km. “Wright said different papers using a variety of methods have produced results that differ by as much as 930 miles (1,500 km)”

This request for cell phone observations is trying to do some wild math way out of my comprehension, based on the flashes of light shining between mountains and valleys on the moon, to calculate the size of the sun down to single-digit kilometer accuracy. That’s three orders of magnitude more accurate than our current measurements. And this type of measurement can only happen during an eclipse.

To me that is absolutely wild, good job NASA 🚀

Earth’s natural satellite can serve as a valuable research partner in measuring the sun’s oblateness. This is due to a phenomenon known as “Baily’s beads,” which are the tiny flashes of light during an eclipse that occur as solar light passes over the moon’s rugged terrain of craters, hills, and valleys. Since satellite imagery has helped produce extremely detailed mappings of lunar topography, experts can match Baily’s beads to the moon’s features as it passes in front of the sun.

The way I’m guessing this works is: Baily’s beads will be detectable on shitty cameras since they will be distinct flashes of light, and since we have very detailed information of the moon’s topography they can determine information on the sun based on your phone’s location and the timing of the flashes of light.

And if that is how it works, that is fuckin rad. A+ science.