Space

Space

See Physics#Cosmology

to merge with Physics?

• https://en.wikipedia.org/wiki/Cosmology
• https://en.wikipedia.org/wiki/Astronomy

• https://en.wikipedia.org/wiki/Barycentric_coordinates_(astronomy)

• http://kokogiak.com/solarsystembodies.jpg

• http://nasa.gov/
  • http://spotthestation.nasa.gov/

• http://www.esa.int/ESA

• http://www.spacetelescope.org/

• http://www.spaceflightnow.com/
  • http://www.livestream.com/spaceflightnow

• http://www.nasawatch.com/

• https://en.wikipedia.org/wiki/Somnium_(novel)

• http://www.spacetelescope.org/

• http://www.ustream.tv/channel/iss-hdev-payload [1]
  • http://eol.jsc.nasa.gov/HDEV

• http://www.exosolar.net/

• http://www.asterank.com/

• http://www.urthecast.com/

Stars Not Where They Seemed or Were Calculated to be, but Nobody Need Worry.

• http://www.nature.com/news/stephen-hawking-there-are-no-black-holes-1.14583 [2]

• http://www.newscientist.com/article/dn25235-first-glimpse-of-big-bang-ripples-from-universes-birth.html?

Earth

• http://hpiers.obspm.fr/

• http://www.swpc.noaa.gov/ovation/North_New.html

• http://news.sciencemag.org/earth/2015/03/mysterious-snow-carrots-observed-meteorite-impact-sites

Moon

• http://www.almanac.com/content/when-will-moon-rise-today

• https://medium.com/starts-with-a-bang/the-inconstant-moon-6df463a3b5f5

Software

• http://www.stellarium.org/

Time

• https://xkcd.com/1335/
  • https://news.ycombinator.com/item?id=7384025

Time zones

• http://www.iana.org/time-zones
• http://everytimezone.com/

Calendar

• http://www.timeanddate.com/calendar/?country=9

For accounting: a 5 week month = 5 weeks including a Monday

Clocks

• http://www.theguardian.com/science/2015/apr/19/clockmaker-john-harrison-vindicated-250-years-absurd-claims

to sort

• http://www.waitbutwhy.com/2013/08/putting-time-in-perspective.html

1h = 3600s 1d = 86400s 1w = 604800s 28d = 2419200s

• http://rsnous.com/posts/2014-08-07-pinhole-a-falling-ball-demo.html

• time cheatsheet

http://jtnimoy.net/workviewer.php?q=178

• http://www.whatsthetimethere.netai.net/msm/

• http://www.fourmilab.ch/documents/calendar/

• http://ilyabirman.net/projects/forebruary/

• https://snipt.net/dogstarchampion/metric-time-indicator-for-ubuntu-unity/

• http://poisson.phc.unipi.it/~maggiolo/index.php/2014/01/how-much-is-time-wrong-around-the-world/

• https://en.wikipedia.org/wiki/Runic_calendar

• http://pagancalendar.co.uk/

• http://skreksto.re/products/durr

• http://www.iers.org/nn_10398/IERS/EN/Science/EarthRotation/UT1-TAI.html?__nnn=true

• https://en.wikipedia.org/wiki/Decimal_time
• https://en.wikipedia.org/wiki/Swatch_Internet_Time [3]

• http://www.visualnews.com/2014/03/17/artist-spent-month-creating-digital-sundial-says-dont-throw-watch/

• https://news.ycombinator.com/item?id=7965317

• http://www.moongiant.com/

• http://procyonic.org/clocks/ [4]

• http://www.famsi.org/research/vanstone/2012/index.html

• http://www.hexahedria.com/experiments/qrclock/index.html

Unix epoch

while true; do echo "$(date +%s)" | figlet ; sleep 0.99 ; done

• http://www.epochconverter.com/epoch/clock.php

date -u -d @1400000000
  gives datetime in UTC