Alexandria Library

A curated collection of awesome articles

Here are some ressources related to Observatoire, Terrestre, Airports. Hoping you will find learning material, alternative tools or just some interesting stuff.

Home > Science, Technology, Health, Explor... > Space Exploration, Aviation, Astron... > Observatory, Satellites, Spacecraft... > Observatoire, Terrestre, Airports...

Articles

You thought OpenStreetMap data uses the WGS84 datum? No it doesn't

See discussion (39 comments, 196 points) - Archive

World Airports Voronoi (2014)

See discussion (107 comments, 424 points) - Archive

Show HN: Airport Locations from Around the World

See discussion (42 comments, 87 points) - Archive

World Airports Voronoi

See discussion (82 comments, 338 points) - Archive

A positive leap second will be introduced at the end of June 2015

See discussion (109 comments, 203 points) - Archive

No leap second will be added tonight

See discussion (76 comments, 136 points) - Archive

June 30th 2012 will be 1 second longer: 23:59:60

See discussion (83 comments, 297 points) - Archive