Mastodawn

Lightspeed: The Ghostly Aether and the Race to Measure the Speed of Light by John C. H. Spence (PDF)
Author: John C. H. Spence
File Type: PDF
Download at https://sci-books.com/lightspeed-the-ghostly-aether-and-the-race-to-measure-the-speed-of-light-b08x18f1lx/
#Physics, #JohnC.H.Spence

Physics Channel 3h ago

Robert McNees 3h ago

TIL that Runequest had its own “Appendix N” even before Gygax’s in the DMG.

https://www.chaosium.com/blogout-of-the-suitcase-17-the-first-appendix-n/?srsltid=AfmBOopr30lVaMECMLGpbdm2Z9FUVxIff-YMWy4CJeso-HmlFApRjNgK

Out of the Suitcase #17: the first Appendix N

Recently the Grognardia blog wrote about the strange serendipity between the bibliography in RuneQuest, which came out in 1978, and the bibliography in the Advanced Dungeons & Dragons Dungeon Masters Guide, which came out in 1979

Chaosium Inc.

Physics Channel 6h ago

Robert McNees 6h ago

Good evening.

Physics Channel 7h ago

Groovy 7h ago

positivelygroovylife.com
#energy #mentalhealth #wellness #psychology #philosophy #metaphysics #physics #freedom #unity #truth #peace #sovereign #frequency #vibration #mindfulness #health #heal #wisdom #leadership #values #integrity #humanity #garden #grow #nature #peace #love #joy #happiness #abundance #manifest #affirmations #self #empowerment

Physics Channel 10h ago

Rhett Allain 10h ago

#python #physics - how do you model the motion of a mass on a spring when the spring is not actually massless? #iteachphysics

https://rjallain.medium.com/physics-lab-assumptions-can-be-wrong-how-do-you-model-an-oscillating-mass-on-a-heavy-spring-7fd518e813d7?sk=0f0fd830d035b53fcd70777ea8f94772

Physics Lab: Assumptions Can Be Wrong. How Do You Model an Oscillating Mass on a Heavy Spring?

It’s a classic introductory physics lab — in fact, it’s one of my favorites. Students can take a simple spring and stretch it by hanging masses on it to find the spring constant (by creating a graph…

Medium

Physics Channel 14h ago

Steven Carneiro 14h ago

Trionda ball:
#football #soccer #ball #mathematics #physics
⚽

https://www.scientificamerican.com/article/the-surprising-math-and-physics-behind-the-2026-trionda-world-cup-soccer-ball/

The Surprising Math and Physics behind the 2026 Trionda World Cup Soccer Ball

Here’s how the new tetrahedron-based design for the “Trionda” soccer ball may affect next year’s big game

Scientific American

Physics Channel 15h ago

Sci-books.com 15h ago

About Science, Myself and Others 1st Edition by V.L. Ginzburg (PDF)
Author: V.L. Ginzburg
File Type: PDF
Download at https://sci-books.com/about-science-myself-and-others-1st-edition-075030992x/
#Physics, #V.L.Ginzburg

Physics Channel 15h ago

Josh Universe

15h ago

View my website to see upcoming events, follow me on other platforms, join my online groups and community pinterest boards, and see my freelance services, some stuff I'm building, and more! Visit here: https://joshuniverse.com/ #space #astronomy #physics #science

Josh Universe - Official Website

Josh Universe is an analog astronaut, science communicator, biohacker, and CEO of Astrochain. This is the official website of Josh Universe.

Physics Channel 17h ago

Alex Jimenez 17h ago

Physicists Create First-Ever #AntimatterQubit, Making the Quantum World Even Weirder

https://gizmodo.com/physicists-create-first-ever-antimatter-qubit-making-quantum-world-even-weirder-2000634528

#QuantumPhysics #Physics

Physicists Create First-Ever Antimatter Qubit, Making the Quantum World Even Weirder

In its second antimatter breakthrough this month, CERN announced it successfully created the first-ever antimatter qubit, paving the way to even weirder quantum experiments.

Gizmodo

Physics Channel 19h ago

Bartosz Milewski 19h ago

Another homotopy blog post.
https://bartoszmilewski.com/2025/07/26/weak-factorization-systems/

(Weak) Factorization Systems

Previously (Weak) Homotopy Equivalences. An average function between sets, $latex f \colon A \to B$ is neither surjective nor injective. We can however isolate the two “failure modes” i…

Bartosz Milewski's Programming Cafe