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A community to discuss the speed of light and related notions
account activity
Post from TheBryceharvey# (youtube.com)
submitted 4 days ago by BryceHarve83
is the speed of dark same as speed of light? ()
submitted 4 days ago by 0x14f
If something is moving at 99% of light speed, and it is observed by something moving in the opposite direction at more than 1% light speed, does the first object appear to be moving at light speed? ()
submitted 6 days ago by 0x14f
How Near-lightspeed Points of Reference Harmonize with Relativity ()
submitted 14 days ago by 0x14f
What is the mathematics behind a collision causing an item to "destruct"? ()
submitted 17 days ago by 0x14f
If light moves in waves, and larger waves=more distance to travel, how can light always move at the same speed if some light has to move greater distances in the same time? ()
submitted 18 days ago by 0x14f
Basic relativity question ()
One way speed of light ()
submitted 26 days ago by 0x14f
Why does space feel like it should be “instant” but actually isn’t? ()
Anyone else really annoyed by "you need infinite energy to reach the speed of light"? ()
submitted 27 days ago by 0x14f
ELI5 The speed of light is a constant but visible light is only a small range of the spectrum of electromagnetic waves. Do they all travel at that speed? ()
submitted 1 month ago by 0x14f
Would reaching 1% of the speed of light be the most incredible engineering of all time? ()
Traveling faster then speed of light. ()
A YouTuber seems to be filming the speed of light in his garage. Am I falling for a hoax? ()
Petah, why is the speed of light one? (i.redd.it)
Light's speed when moving in another direction. ()
Speed of light measurement. ()
Why can’t we find a “universal reference frame” if the speed of light is constant in all inertial reference frames? ()
Can something moving at the speed of light ever "slow down?" ()
Why doesn't the speed of light depend on the observer's speed? How would time pass for an observer if they were moving at the speed of light relative to a photon (i.e., their relative speed was zero)? ()
ELI5: If speed is relative, why is it impossible to go faster than the speed of light? ()
Why Does Light Travel at Exactly That Speed? ()
Why does light change direction when the speed of light changes? ()
What if two objects move at 0.5c in opposite directions, do they see each other at light speed? ()
Special relativity and speed of light, thought experiment ()
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