VATSIM: The International Online Aviation Network(vatsim.net)

152 points by skibz 2 years ago | 53 comments

Apollo Operations Handbook [pdf](ibiblio.org)

30 points by not_a_boat 1 year ago | 3 comments

MicroVM by QEMU(qemu.readthedocs.io)

95 points by kbumsik 3 years ago | 4 comments

CPUlator Computer System Simulator(cpulator.01xz.net)

50 points by hosteur 3 years ago | 3 comments

Open-source network emulators and simulators(brianlinkletter.com)

186 points by transpute 3 years ago | 48 comments

Show HN: Air Lab – A portable and open air quality measuring device(networkedartifacts.com)

448 points by 256dpi 1 year ago | 178 comments

A web-based simulator running the Air Lab firmware, emulating a portable open air quality monitor that measures CO2, VOC, NOx, humidity, and pressure.