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Jake’s video about The Curiosity Box: https://www.youtube.com/watch?v=p91-GhjgeEU
Minute Physics on why December days are the longest: https://www.youtube.com/watch?v=nZMMuv0Ltyo
StandUpMaths on calendars and leap days: https://www.youtube.com/watch?v=qkt_wmRKYNQ
Tom Scott on the Equation of Time: https://www.youtube.com/watch?v=d9Qnobvx_kM
My video on what would happen if the Earth stopped spinning: https://www.youtube.com/watch?v=K0-GxoJ_Pcg
GREAT visuals showing how Earth moves around the sun: https://www.youtube.com/watch?v=82p-DYgGFjI
http://www.timeanddate.com/
George Washington’s birthday: https://www.archives.gov/legislative/features/washington/
real-time sub solar point location: http://rl.se/sub-solar-point
Lahaina noon images from the Oahu Astrophotography club: https://www.facebook.com/OahuAstrophotoClub
analemma: https://en.wikipedia.org/wiki/Analemma
great solargraph and analemma images: http://analemma.pl/english-version
interactive seasons and ecliptic simulator: http://astro.unl.edu/classaction/animations/coordsmotion/eclipticsimulator.html
Nasa video of seasonal movement of Earth: https://svs.gsfc.nasa.gov/20063
Tropical year: https://en.wikipedia.org/wiki/Tropical_year
Earth rotation specifics: https://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=20196
How Earth moves through the universe:
https://astrosociety.org/edu/publications/tnl/71/howfast.html
http://www.slate.com/blogs/bad_astronomy/2013/03/04/vortex_motion_viral_video_showing_sun_s_motion_through_galaxy_is_wrong.html
http://space.gizmodo.com/racing-while-standing-still-1558642922/1559622011
I always see representations of the solar system with the planets existing on the same plane. If that is the case, what is "above" and "below" our solar system? from askscience
minute physics on cab: https://www.youtube.com/watch?v=_mZQ-5-KYHw
PBS spacetime on the cosmic microwave background:
CMB rest frame:
http://physics.stackexchange.com/questions/25928/is-the-cmb-rest-frame-special-where-does-it-come-from
Does "No Absolute Reference Frame" contradict the cosmic microwave background (CMB)? from AskPhysics
Wikipedia:
https://en.wikipedia.org/wiki/Day
https://en.wikipedia.org/wiki/Solar_time
https://en.wikipedia.org/wiki/Sidereal_time
https://en.wikipedia.org/wiki/Calendar
https://en.wikipedia.org/wiki/Gregorian_calendar
https://en.wikipedia.org/wiki/Calendar_reform
https://en.wikipedia.org/wiki/Day_length_fluctuations
https://en.wikipedia.org/wiki/Cosmic_microwave_background
wikicommons images:
https://en.wikipedia.org/wiki/Sundial#/media/File:Kew_Gardens_0502.JPG
https://en.wikipedia.org/wiki/File:CathedralofLearningLawinWinter.jpg
https://en.wikipedia.org/wiki/Miami_Beach,_Florida#/media/File:South_Beach_20080315.jpg
To explore space, I highly recommend these:
http://www.shatters.net/celestia/
http://en.spaceengine.org/
music by http://www.youtube.com/jakechudnow
and http://www.audionetwork.com
Awesome 3D graphics by Eric Langlay: https://www.youtube.com/user/ericdraven30
Lame 2D stuff by me.