Misconceptions About the Universe

This video from Veritasium discusses the expansion of the Universe, the Hubble sphere, and the possibility of an infinite Universe.

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Misconceptions About the Universe

If the Moon Were Only 1 Pixel

http://joshworth.com/dev/pixelspace/pixelspace_solarsystem.html

“A tediously accurate scale model of the solar system.”

Spend hours scrolling and scrolling and scrolling and scrolling and enjoy the vast emptiness of space. Put it on lightspeed mode and sit back and watch near-nothingness pass by for 5-and-a-half hours until you reach Pluto from the Sun.

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If the Moon Were Only 1 Pixel

MIT Game Lab: A Slower Speed of Light

http://gamelab.mit.edu/games/a-slower-speed-of-light/

The controls are a bit wonky, and they don’t let you run around at lightspeed for very long, but still… pretty cool.

A Slower Speed of Light is a first-person game prototype in which players navigate a 3D space while picking up orbs that reduce the speed of light in increments. Custom-built, open-source relativistic graphics code allows the speed of light in the game to approach the player’s own maximum walking speed. Visual effects of special relativity gradually become apparent to the player, increasing the challenge of gameplay. These effects, rendered in realtime to vertex accuracy, include the Doppler effect (red- and blue-shifting of visible light, and the shifting of infrared and ultraviolet light into the visible spectrum); the searchlight effect (increased brightness in the direction of travel); time dilation (differences in the perceived passage of time from the player and the outside world); Lorentz transformation (warping of space at near-light speeds); and the runtime effect (the ability to see objects as they were in the past, due to the travel time of light). Players can choose to share their mastery and experience of the game through Twitter. A Slower Speed of Light combines accessible gameplay and a fantasy setting with theoretical and computational physics research to deliver an engaging and pedagogically rich experience.”

MIT Game Lab: A Slower Speed of Light