Activity – Physics Cafe

John Scott started the topic September 13th: Proposition 13 (parabolic orbit) in the forum 2025-2026 Principia Series 5 days, 1 hour ago

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John Scott started the topic September 6th: Einstein Field Equations (Collier 7.6) in the forum 2025-2026 Relativity Series 1 week, 4 days ago

Scott will begin talking on the Einstein field equations.

Meeting link: https://us06web.zoom.us/j/87696074341?pwd=N17bmYVaABjibjrFsyEF3QIZB4Ds4o.1
John Scott started the topic TBD: Quantum Information in the forum Meetings 1 week, 5 days ago

Scott will share content from his quantum information class.

Meeting link: https://us06web.zoom.us/j/87696074341?pwd=N17bmYVaABjibjrFsyEF3QIZB4Ds4o.1
Mike Witt replied to the topic August 30th: A Simple Nash Equilibrium in the forum Meetings 2 weeks, 2 days ago

Yes, this coming Sunday the 30th. I guess the date is only on the main meetings page:

Meetings

Sorry about that!
Eduard Smetanin replied to the topic August 30th: A Simple Nash Equilibrium in the forum Meetings 2 weeks, 2 days ago

Next Sunday? I don’t see the date anywhere.
Mike Witt replied to the topic August 30th: A Simple Nash Equilibrium in the forum Meetings 2 weeks, 2 days ago

@eduard, it looks like that’s 7:00pm for you. Is that right? Are you an hour later than New York?
Mike Witt replied to the topic August 30th: A Simple Nash Equilibrium in the forum Meetings 2 weeks, 2 days ago

Our regular time. Sunday at 3:00pm Pacific time.
Eduard Smetanin replied to the topic August 30th: A Simple Nash Equilibrium in the forum Meetings 2 weeks, 2 days ago

When is it?
Mike Witt replied to the topic August 30th: A Simple Nash Equilibrium in the forum Meetings 2 weeks, 2 days ago

Looking forward to this. I’ve been curious about it for a long time.
John Scott started the topic August 30th: A Simple Nash Equilibrium in the forum Meetings 2 weeks, 2 days ago

“In game theory, a Nash equilibrium is a situation where no player could gain more by changing their own strategy (holding all other players’ strategies fixed) in a game.” – Wikipedia

Meeting link: https://us06web.zoom.us/j/87696074341?pwd=N17bmYVaABjibjrFsyEF3QIZB4Ds4o.1
John Scott started the topic August 23rd – Stress-energy tensor: dust and perfect fluids in the forum 2025-2026 Relativity Series 3 weeks, 5 days ago

Scott will lead us in a discussion of the stress-energy tensor as it relates to dust and perfect fluids. This corresponds to Collier 7.5.1 and 7.5.2.

Same zoom link: https://us06web.zoom.us/j/87696074341?pwd=N17bmYVaABjibjrFsyEF3QIZB4Ds4o.1
John Scott started the topic August 16th – Stress-Energy Tensor components in the forum 2025-2026 Relativity Series 1 month ago

Scott will lead us in a discussion of Collier 7.5.1 and 7.5.2, which apples the energy-momentum tensor to dust and perfect fluids.

Same zoom link: https://us06web.zoom.us/j/87696074341?pwd=N17bmYVaABjibjrFsyEF3QIZB4Ds4o.1
John Scott started the topic August 9th – The Stress-Energy Tensor in the forum 2025-2026 Relativity Series 1 month, 1 week ago

Scott will lead us in a discussion of Collier 7.5: The energy-momentum tensor, which is also known as the stress-energy tensor.

Same zoom link: https://us06web.zoom.us/j/87696074341?pwd=N17bmYVaABjibjrFsyEF3QIZB4Ds4o.1
John Scott started the topic August 2nd: Proposition 12 (hyperbolic orbit) in the forum 2025-2026 Principia Series 1 month, 2 weeks ago

place
John Scott started the topic July 26th: Finish proposition 11, plus conics overview in the forum 2025-2026 Principia Series 1 month, 3 weeks ago

Meeting link: https://us06web.zoom.us/j/87696074341?pwd=N17bmYVaABjibjrFsyEF3QIZB4Ds4o.1

Interactive models: https://sciencehike.com
John Scott started the topic July 19th: Proposition 11 (focus-centered elliptical orbit) in the forum 2025-2026 Principia Series 2 months ago

place
John Scott started the topic July 12th: Proposition 10 (sun-centered elliptical orbit) in the forum 2025-2026 Principia Series 2 months, 1 week ago

Link
John Scott started the topic June 28th – Geodesics in the forum 2025-2026 Relativity Series 2 months, 4 weeks ago

Scott will lead us in a discussion of Collier 7.4.

Same zoom link: https://us06web.zoom.us/j/87696074341?pwd=N17bmYVaABjibjrFsyEF3QIZB4Ds4o.1
John Scott started the topic June 14th – Spacetime (and maybe Geodesics) in the forum 2025-2026 Relativity Series 3 months ago

Scott will lead us in a discussion of Collier 7.3, and we might start 7.4.

Same zoom link: https://us06web.zoom.us/j/87696074341?pwd=N17bmYVaABjibjrFsyEF3QIZB4Ds4o.1
John Scott started the topic June 7th – Three key principles of GR, 𝖺̶𝗇̶𝖽̶ ̶𝖲̶𝗉̶𝖺̶𝖼̶𝖾̶𝗍̶𝗂̶𝗆̶𝖾̶ (Collier 7.1 – 7.2) in the forum 2025-2026 Relativity Series 3 months, 1 week ago

Scott will lead us in a discussion of Collier 7.1 – 7.3.
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