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Every blog post that took off on Hacker News, ranked by the votes of its best submission. 2,098 posts.

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2012
349

The game of life emulated in the game of life

Conway's Game of Life, emulated in Conway's Game of Life: The life simulator used is Golly which has a built-in script to generate these metapixel grids (select a pattern, and choose "metafier.py" from the scripts list). Outer Totalistic Cellular Automata Meta-Pixel: The metacell uses a period 184 tractor beam, which…

350

How to build a windmill

Windmills have always fascinated me and for a long time I was dreaming of one day building my own. Where I live there are still machines from the 1600’s that are just as magnificent today as when they were first built. When you see one standing in a field rotating and converting passing air into usable energy they…