I talk about things I find interesting. I find a lot of things interesting…

Perseids, O Perseids!

by Ken Arnold on Mon 12 August 2013

Last night we went to watch the Perseids meteor shower. The Boston metro area is quite densely suburbanized, so light pollution abounds. However, we found a parking lot off the road in a pretty good place and saw about twenty meteors. We are but flecks of flotsam on an endless sea of stars, and also the […]

Symbol for an asteroid‽

by Ken Arnold on Mon 25 February 2013

In 1973, my father had an asteroid named after him: 2143 jimarnold. I mean for real, not in one of those pay-to-get-entered shyster catalogs. We recently came across the wikipedia page on astronomical symbols, and noticed that about two dozen asteroids have their own symbols. And we thought, well, why not 2143 jimarnold? It turns out that […]

Indian mathematics: Aryabhata

by Ken Arnold on Wed 20 February 2013

Today’s google doodle is on Copernicus, who is credited with first proposing that the Earth moves around the Sun. Someone commenting on this claimed that Aryabhata had come up with the idea long before in India. I know that India had advanced math and astronomy for its time, and was the place where many advances were […]