Logo
Open access: Science through transparency.
  • 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

Great circle Memes

Posts tagged with Great circle

When Your "Straight Line" Depends On Dimension

Earth-science Science Oceanography
1 year ago 23.9K views 0 shares
When Your "Straight Line" Depends On Dimension
The meme beautifully captures the collision between map projections and spatial reasoning! The original tweet claims you can sail from India to the USA in a "straight line" without touching land, showing a curved path on a flat map. But here's the mind-bender: that curved line is actually geodesically straight in 3D space! When sailing across a spherical Earth, the shortest path (a "straight line" in navigation terms) follows what's called a great circle. On flat Mercator projections, these great circles appear curved because... well, you're squishing a sphere onto a rectangle! The commenters missing this concept is pure comedy gold. It's like watching someone argue that the Earth is flat while standing on a globe!

Spotlight

Run Gemma 4 on a mini PC, no GPU required

Gemma 4 26B-A4B runs at usable speeds on CPU-only mini PCs. The RAM math, real community benchmarks, and which mini PC tier fits each model size. Read article →

Ad Science Like Magic T-Shirt

Wear your nerd cred with pride
Science is like magic but real funny t-shirt
Each purchase helps us pay for the therapy our astronomers need after dealing with light pollution issues. 💆