Best of Physics — July 2025

1. 1
   Article

   xkcd·46w

   xkcd: Artificial Gravity

   An xkcd webcomic exploring the concept of artificial gravity, likely presenting a humorous take on the physics and engineering challenges of creating gravity-like effects in space environments.

   43
2. 2
   Article

   xkcd·45w

   xkcd: Unsolved Physics Problems

   An xkcd webcomic that humorously explores unsolved problems in physics, using the characteristic wit and scientific insight that makes complex physics concepts accessible through visual storytelling and clever commentary.

   40
3. 3
   Video

   Two Minute Papers·45w

   Roblox Solved The Physics Problem That Stumped Everyone!

   Roblox and University of Utah developed Augmented Vertex Block Descent (AVBD), a physics simulation method that solves complex collision and constraint problems that stumped previous techniques. The method can simulate millions of particles at 100 FPS on consumer graphics cards and correctly handles challenging scenarios like heavy objects on light chains, chain mail collisions, and spring-connected blocks where older methods failed completely.

   14

   2