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John Carlos Baez

Astronomer Georg Busch on the great comet of 1577:

“…the comet was composed of a sort of obnoxious gas generated by human sin, which floated heavenward until ignited by the wrath of God. As it burned the comet became a prolific celestial polluter, showering its effluence widely over Earth and thereby causing pestilence, Frenchmen, sudden death, bad weather…”

I got this from an interesting blog article by @rmathematicus:

thonyc.wordpress.com/2019/02/2

@swym @johncarlosbaez @rmathematicus They erupt from the ground in marshy areas during the full moon, don't you know? Oh wait no that's Tom Bombadil, my bad.

@johncarlosbaez

I think the Georg Busch is my all time favourite history of astronomy quote

@johncarlosbaez @rmathematicus P.S. The print is from Georg Mack d.Ä. 1577

@morph @rmathematicus - I spent half a year in Erlangen but I didn't recognize that skyline. 😢

@johncarlosbaez It's Nuremberg. A little bit changed since that time around the towers. 😄
@rmathematicus

@rmathematicus @morph - My wife went to the Internationales Kolleg für Geisteswissenschaftliche Forschung in Erlangen in 2014, and I trailed along.

Now I *do* remember that this skyline reminds me a bit of Nuremberg.

@johncarlosbaez What’s your wife’s name? I was active in the IKGF from 2014 till it closed in 2022, our paths might have crossed

@rmathematicus - oh wow! Her name is Lisa Raphals and she was involved in the IKGF's project on fate. I hadn't known the IKGF closed down - why did that happen? Anyway, its website lives on and she's on it, here:

ikgf.uni-erlangen.de/research/

It's really too bad that I didn't meet you in 2014, or maybe met you and don't remember. I worked in Lisa's office a lot.

www.ikgf.uni-erlangen.deResearch Project:

@johncarlosbaez It was originally a five year research project which got extended twice. It has been superseded by a new research project called CAS_E

@rmathematicus - Now that you mention it, I think Lisa said the new project is run solely by medievalists, while before it was a mix of classicists and medievalists. Since she's in classics, this was a bad thing.

(I though the IKGF was the building, not the project.)

@johncarlosbaez The new project is anthropology with lots of rather weird research projects

@johncarlosbaez In 2014 I was still very much lurking on the fringes. I was never officially part of it but I ended up holding a lecture there in 2019. I became good friends with Michael Lackner the director and am now good friends with his successor Andrea Bréard. I still work with/for Petra Schmidl who was also a fellow there
ikgf.uni-erlangen.de/people/in

www.ikgf.uni-erlangen.dePeople

@rmathematicus - nice! Lisa is also friends with Michael Lackner. I'll tell her about this.

@johncarlosbaez @rmathematicus Also greetings from Nuremberg. The building with the big roof seen between the two towers on the left is a youth hostel nowadays, probably one of the most interesting youth hostels in Germany!

@FMarquardtGroup - greetings! What makes this youth hostel interesting? (Or if you tell me it's name, I'll have fun looking it up.)

@rmathematicus

@johncarlosbaez @rmathematicus When humans don't know what's causing something, they explain it in terms of something they do know. Busch clearly didn't know what was causing Frenchmen.