Everyday uses for PVC water pipe (tomtilley.net) | HN Screenshots

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Screenshot of tomtilley.net: Everyday uses for PVC water pipe

First screen, captured 3 years ago.

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Screenshot of projecteuler.net: Project Euler

Project Euler (projecteuler.net)

518 points by swatson741 11 months ago | 126 comments

The About page of Project Euler, a site offering a series of challenging mathematical and computer programming problems for recreational learning.

project-euler math-puzzles programming-challenges competitive-programming

Screenshot of solipsys.co.uk: When Optimising Code, Measure

When Optimising Code, Measure (solipsys.co.uk)

50 points by ColinWright 2 years ago | 68 comments

Screenshot of yorick.sourceforge.net: Yorick is an interpreted programming language for scientific simulations

Yorick is an interpreted programming language for scientific simulations (yorick.sourceforge.net)

52 points by Tomte 3 years ago | 18 comments

Screenshot of dougmacdowell.com: Coffeematic PC – A coffee maker computer that pumps hot coffee to the CPU

Coffeematic PC – A coffee maker computer that pumps hot coffee to the CPU (dougmacdowell.com)

266 points by dougdude3339 1 year ago | 81 comments

Screenshot of web.archive.org: A Tinkertoy computer that plays tic-tac-toe (1989)

A Tinkertoy computer that plays tic-tac-toe (1989)(web.archive.org)

34 points by anschwa 2 years ago | 10 comments

Screenshot of web.archive.org: Konrad Zuse's Homepage

Konrad Zuse's Homepage (web.archive.org)

67 points by nanna 2 years ago | 21 comments