Logo
HELLO WORLD! (That's a baby's first cry)
  • Home
  • Hot
  • Random
  • Search

Browse

  • Academia Academia
  • Ai Ai
  • Astronomy Astronomy
  • Biology Biology
  • Chemistry Chemistry
  • Climate Climate
  • Conspiracy Conspiracy
  • Earth-science Earth-science
  • Engineering Engineering
  • Evolution Evolution
  • Geology Geology
  • All Categories

HTTP 418: I'm a teapot

The server identifies as a teapot now and is on a tea break, brb

HTTP 418: I'm a teapot

The server identifies as a teapot now and is on a tea break, brb

Penumbra Memes

Posts tagged with Penumbra

You Can't Outrun Your Shadow

Physics Science
1 year ago 22.0K views 0 shares
You Can't Outrun Your Shadow
The struggle is real for anyone who's ever tried to outrun their shadow! This meme perfectly captures the physics of penumbra (partial shadow) behavior. Notice how the shadow calmly follows at normal walking pace, but the moment you start running, that shadow suddenly becomes The Flash. It's basically the scientific version of "objects in mirror may be closer than they appear" but for shadows. The penumbra doesn't actually move faster - it's just the projection angle changing rapidly as light source direction shifts relative to your position. Physics making us look foolish since... well, forever.

Spotlight

How to run DeepSeek V4 Flash locally (Mac, Linux, Windows)

How to run DeepSeek V4 Flash locally on Mac, Linux, or Windows: hardware that fits 167GB, llama.cpp setup, and realistic speed expectations. Read article →

Ad Breville Barista Express

Turn your kitchen into a hipster café
Breville Barista Express espresso machine
Shopping here maintains our collection of 'Eureka moment' screenshots. 📸