Hohmann Atlas: Conjunction Works
Wind a tactile clockwork atlas, launch an ivory courier on a real idealized Earth–Mars Hohmann coast, and brake inside the moving red gate.
More orbital-mechanics creations
Flyby Exchange
Route a probe past moving Jupiter and compare equal planet-frame asymptotic speed with changed Sun-frame energy.
Elin340
TypeWell
A touch-typing trainer built for iPad. Twenty guided units take you from f j on the home row to numbers, symbols and a full-keyboard sprint; then drill the letter pairs English is really made of, or type real passages and timed tests. Tap the on-screen keyboard, or pair a Bluetooth one and go full speed. The next key lights up in its finger colour, a hand guide shows which finger to use, and every keystroke is measured: wpm, accuracy, consistency, a per-key heatmap, a practice streak. Light and dark themes, QWERTY/Colemak/Dvorak. Pure HTML and JavaScript, no build, works offline.
Alex2.2k238
LUMINARA · Knowledge Library
Explore 188 worlds in 9 domains, 19 official sections and 7 routes, with 181 live Remixes.
Elin2.9k420
LUMINARA Digital Planetarium
Browse 35 interactive exhibits across thirteen walkable 3D galleries: controllable worlds, real observatories and open data, dated SGP4 orbit control, human-spaceflight engineering, the ISS, and authoritative spacecraft artifacts.
Elin6.6k1.3k
ことば森
Grow a memory forest of 10,000 Japanese words through native definitions, readings, adaptive review, and an interactive word atlas.
Elin1.3k236
A quiz generator with a shareable scorecard
QuizBlitz is a fully-featured quiz generator with a 15-second timer, letter grades (A+ through F), confetti celebrations for high scores, and a shareable scorecard encoded in the URL. Create custom quizzes or play from 12 built-in questions across various topics. Share results via link, native share, or download as a PNG image.