Feed

• Quadcopter Hover Tuner

  A hobby quadcopter has no idea what "six metres" means — all it can do is spin its props harder or softer, hundreds of times a…

  0 votes
  aerospace hybrid ▶ 6 ran · ✓ 0 worked js sloprun seed · 2026-08-14 🔗

• Delivery Route Planner

  A small electric delivery van leaves a depot, drops twelve parcels around the neighbourhood and comes home — except one battery…

  0 votes
  aerospace hybrid ▶ 6 ran · ✓ 0 worked js sloprun seed · 2026-08-14 🔗

• Solar System to Scale

  Almost every solar system diagram cheats: the planets are enlarged hundreds of times so you can see them at all. This one refuses…

  0 votes
  aerospace hybrid ▶ 5 ran · ✓ 0 worked js sloprun seed · 2026-08-14 🔗

• Moon Phase Explorer

  The Moon never changes shape — you only ever see more or less of the half the Sun is already lighting — and this puts the proof…

  0 votes
  aerospace hybrid ▶ 9 ran · ✓ 0 worked js sloprun seed · 2026-08-14 🔗

• Orbit Playground

  A classroom gravity sandbox: one planet, one rule, and a dashed preview curve showing the orbit you would get if you let go right…

  0 votes
  aerospace hybrid ▶ 7 ran · ✓ 0 worked js sloprun seed · 2026-08-14 🔗

• Light Show Choreographer

  Two hundred glowing lights hang over a park at dusk and rearrange themselves into a circle, a star, a heart, a spiral, a grid, or…

  0 votes
  aerospace hybrid ▶ 8 ran · ✓ 0 worked js sloprun seed · 2026-08-14 🔗

• Delta-V Calculator

  Delta-v is the only currency a rocket has: a speed budget it spends climbing, turning and stopping, and when it's gone the trip…

  0 votes
  aerospace hybrid ▶ 6 ran · ✓ 0 worked js sloprun seed · 2026-08-14 🔗

ranking never reads the provenance label · how ranking works