Friday Science: Speed

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Speed of earth's rotation at the equator: 1,000 mph
Speed of earth's orbit around the sun: 66,600 mph
Speed of the sun's orbit around the Milky Way: 500,000 mph
Speed of the Milky Way against the Cosmic Microwave Background Radiation: 1,250,000 mph
Speed of the New York City Subway: 30 mph

Universal speed limit: 670,000,000 mph

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YouTube lopped 2 seconds off the end.

http://twitter.com/joefelice

Category:

Science & Technology

Tags:

• astronomy
• speed
• of
• earth
• sun
• milky
• way
• galaxy
• orbit
• rotation
• sagittarius
• star
• friday
• science
• joe
• felice

[catgumart]

This video really makes me think---would you add the velocities of the galaxy speed plus the solar system plus the earths etc...if one rides a jet plane and shines a light those photons don't go any faster than the speed of light weather your on a jet plane or standing still--all this stuff about motion and time is really interesting but kind of difficult to ones mind wrapped around it...at least in my oppinion

thanks again!

[JoeFelice]

If you're on a moving train and shine a light in front of you, it recedes from you at light speed. If someone is standing still next to the train, the light also recedes from them at light speed even though you'd expect it to be faster.

This seems impossible, but it is made possible by the fact that time is a subjective experience that warps itself custom to you based on your relative motion.

[catgumart]

light is constant-186,000miles per second--I was told gravity perpetuates at the speed of light--if the sun disappeared now- would we stay in gravity and still witness the presence of the sun for 8.3 minutes (the time it takes light to reach earth)? or would we instantly be thrown from orbit ...hope these questions aren't annoying but I was having a discussion with someone else on this topic and Id like to hear another perspective...

[JoeFelice]

I've read that the former is correct; you will experience 8 minutes of gravity.

[zQWASZX]

This was awesome! Ur voice is so soothing man. I find my self listening and watching and almost entranced. Yet i don't fully understand what you're talking about till the videos over and it sinks in a bit... Love it man!

[oxyvince]

your dialogue is bliss

[jrgnc1]

I'm just dizzy!

[y512516]

that was much better illustrated than any thing I've read

u should write a book

[Xhaosz]

well done, nice documentation: must've been a pain in the ass :D

[UltiGuides]

yeah umm....same -_-

[666NightShade]

mindfuck...



[luke1232d]

BRAIN PAIN!!!

[tehsquishyone]

cosmic bumper cars!

[masterdimsen]

Wow... my mind just blew...

[christabella81]

seriously, what's your IQ? like 234?

u should teach, you have a great way of making the complex seem much easier to understand and much more interesting.

[Kr0n1k4Lyfe]

There has to be a God.....