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This talk will cover the emergence of a scientific community in London and Paris, and the tremendous progress in both astronomy and mechanics between Descartes and Newton.

I will wrap up Galileo’s Two New Sciences and talk a bit about Descartes.

Placeholder for talk 5

I’ll continue with what happens after Kepler’s Epitome of Copernican Astronomy.

I’ll resume discussion of Kepler writing the manuscript of Astronomia Nova.

Happy long weekend everyone!

I’ve recovered and I plan to resume talks Sunday September 8. If you have questions or comments, we have a new forum thread where you can post them: https://physicscafe.org/topic/meeting-updates/
We plan to post meeting updates there, so it would be a good thread to subscribe to should any further changes come up.

Subscribe to this thread to learn of changes to our weekly Principia meetings.
Ask questions about the logistics of our meetings here.

I plan to resume talks Sunday September 8, 4pm Mountain, 3pm Pacific.
You can click to join sooner, verify your camera is working, and then wait until I let people in.
(I won’t let people in early because we get a…[Read more]

Below is what I got from Bunny.new taking all the default options for everything (which included at least two warnings that I ignored):

And this is what John previously posted on YouTube, but I created the the things that links to it, and I’m not sure if I have all the right options here either:

I’m postponing the next talk to August 25 to give myself more time to prepare. Sorry to do this.
Hope to see you all then.

I will primarily discuss Kepler and Galileo, with the goal of taking us up to Newton beginning to write the Principia.

About joining:

• It appears we can use the same link as last time: https://meet.google.com/wgc-jaqo-zmb.
• I’ve realized you don’t have to wait until 4:00 Mountain / 3:00 Pacific to click “Ask to Join”. Feel free to click that…

[Read more]

For those who didn’t reply to the original email, John will be giving a series of talks on Isaac Newton’s Principia beginning Sunday August 11 at 4pm Mountain, 3pm Pacific. He’ll cover history leading up to the Principia followed by a close look at some of the math in the Principia.

For more info, see the forum at htt…[Read more]