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/sci/ - Science & Math

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9876779 No.9876779 [Reply] [Original]

>The speed of light is like the cosmic speed limit

>> No.9876787

>>9876779
Dumb slowjack poster is dumb

>> No.9876966
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9876966

>>9876787

>> No.9878507

>>9876779
but anon, the speed that light travels at is the fastest two parts of the universe can interact

>> No.9878631

>>9878507
information can't travel faster than light.
if it don't carry information, things can travel faster than light without violating causality.

for example, lets say the moon travels with 99,999% c and is between our sun and earth, the shadow it would cast on earth would travel faster than light. no information traveled inside the shadow so no violation of causality.

c is the maximum for information, but not the absolute maximum.

>> No.9878708
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9878708

>>9878631
>The shadow that casts on Earth would be faster than light

>> No.9878711

>>9876779
Just remove the word "like" from that sentence and it is absolutely correct.

>>9878708
Absolutely correct. Try not to think too hard about it though.

>> No.9878719

>>9878708
the shadow would travel from the east to the west faster than light.

>If a laser beam is swept across a distant object, the spot of laser light can easily be made to move across the object at a speed greater thanc.[7]Similarly, a shadow projected onto a distant object can be made to move across the object faster thanc.[7]In neither case does the light travel from the source to the object faster thanc, nor does any information travel faster than light.[7][8][9

https://en.m.wikipedia.org/wiki/Faster-than-light

must suck to be a brainlet

>> No.9878727
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9878727

>>9876966
>Windows phone user

>> No.9879112

>>9878711
>>9878719
This is an illusion of movement though. Don't be silly now.

>> No.9879147

>>9879112
Wow nice nonargument

>> No.9879157

>>9879147
kys

>> No.9879245

>>9878507
What if light isn't actually moving, but the universe itself is traveling at the speed of C?

>> No.9879286

https://en.wikipedia.org/wiki/Cherenkov_radiation

Checkmate atheists.

>> No.9879327

>>9879286
>what is c