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Question for physicsmos: why can't light from a flashlight travel infinitely?

Assume there's no atmosphere, and you turn on a flashlight a...
Emerald Bespoke Gay Wizard Principal's Office
  07/25/26
It is visible. You would know if you actually tried.
iridescent filthy hell water buffalo
  07/25/26
So the light travels in a straight line but the curvature of...
Emerald Bespoke Gay Wizard Principal's Office
  07/25/26
that's not it at all. trust me bro, you need to get a 1mm mi...
iridescent filthy hell water buffalo
  07/25/26
The actual answer "physics" gives us predicts that...
Emerald Bespoke Gay Wizard Principal's Office
  07/25/26
...
adulterous flatulent old irish cottage
  07/25/26
scientists cannot explain this
Razzle kitchen
  07/25/26
Light isn’t even real lmao
Cyan generalized bond
  07/25/26
...
adulterous flatulent old irish cottage
  07/25/26
, he said regarding the godhead
Razzle kitchen
  07/25/26
...
adulterous flatulent old irish cottage
  07/25/26
...
Glittery spot
  07/25/26
Photons are less interactive with our fabric of space time t...
Cordovan nudist digit ratio
  07/25/26
In a vacuum, it does. But irl the light will likely collide...
Cordovan nudist digit ratio
  07/25/26
Wrong answer
Emerald Bespoke Gay Wizard Principal's Office
  07/25/26
lol ok
Cordovan nudist digit ratio
  07/25/26
this whole place is a churning soup of gasses full of life a...
Topaz toaster institution
  07/25/26
...
adulterous flatulent old irish cottage
  07/25/26
...
Sooty diverse jew tanning salon
  07/25/26
...
Navy spectacular mental disorder
  07/25/26
These people will tell you that if you're riding a bike and ...
doobsian laughsome party of the first part selfie
  07/25/26
...
Emerald Bespoke Gay Wizard Principal's Office
  07/25/26
...
Cyan generalized bond
  07/25/26
...
Glittery spot
  07/25/26
omg xo 2026
Cordovan nudist digit ratio
  07/25/26
...
Coiffed school pistol
  07/25/26
...
Pearly clown chapel
  07/25/26
something about number of photons and distance and square ro...
insanely creepy main people dilemma
  07/25/26
Nah, photons don't just get tired and fall to the ground
Emerald Bespoke Gay Wizard Principal's Office
  07/25/26
...
adulterous flatulent old irish cottage
  07/25/26
...
Cyan generalized bond
  07/25/26


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Reply Favorite

Date: July 25th, 2026 4:52 PM
Author: Emerald Bespoke Gay Wizard Principal's Office

Assume there's no atmosphere, and you turn on a flashlight at night. Shouldn't the light be visible from a million miles away?

(http://www.autoadmit.com/thread.php?thread_id=5886135&forum_id=2…id#50023925)



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Date: July 25th, 2026 5:13 PM
Author: iridescent filthy hell water buffalo

It is visible. You would know if you actually tried.

(http://www.autoadmit.com/thread.php?thread_id=5886135&forum_id=2…id#50023976)



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Date: July 25th, 2026 5:47 PM
Author: Emerald Bespoke Gay Wizard Principal's Office

So the light travels in a straight line but the curvature of the earth prevents it from lighting up surfaces 100 miles away?

(http://www.autoadmit.com/thread.php?thread_id=5886135&forum_id=2…id#50024052)



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Date: July 25th, 2026 5:57 PM
Author: iridescent filthy hell water buffalo

that's not it at all. trust me bro, you need to get a 1mm mile stretch with no atmosphere and try it and you'll see.

(http://www.autoadmit.com/thread.php?thread_id=5886135&forum_id=2…id#50024066)



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Date: July 25th, 2026 9:16 PM
Author: Emerald Bespoke Gay Wizard Principal's Office

The actual answer "physics" gives us predicts that that won't work in the manner you describe

(http://www.autoadmit.com/thread.php?thread_id=5886135&forum_id=2…id#50024430)



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Date: July 25th, 2026 4:52 PM
Author: adulterous flatulent old irish cottage



(http://www.autoadmit.com/thread.php?thread_id=5886135&forum_id=2…id#50023926)



Reply Favorite

Date: July 25th, 2026 4:53 PM
Author: Razzle kitchen

scientists cannot explain this

(http://www.autoadmit.com/thread.php?thread_id=5886135&forum_id=2…id#50023929)



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Date: July 25th, 2026 4:53 PM
Author: Cyan generalized bond

Light isn’t even real lmao

(http://www.autoadmit.com/thread.php?thread_id=5886135&forum_id=2…id#50023931)



Reply Favorite

Date: July 25th, 2026 4:54 PM
Author: adulterous flatulent old irish cottage



(http://www.autoadmit.com/thread.php?thread_id=5886135&forum_id=2…id#50023932)



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Date: July 25th, 2026 4:54 PM
Author: Razzle kitchen

, he said regarding the godhead

(http://www.autoadmit.com/thread.php?thread_id=5886135&forum_id=2…id#50023934)



Reply Favorite

Date: July 25th, 2026 4:54 PM
Author: adulterous flatulent old irish cottage



(http://www.autoadmit.com/thread.php?thread_id=5886135&forum_id=2…id#50023936)



Reply Favorite

Date: July 25th, 2026 5:27 PM
Author: Glittery spot



(http://www.autoadmit.com/thread.php?thread_id=5886135&forum_id=2…id#50023998)



Reply Favorite

Date: July 25th, 2026 6:13 PM
Author: Cordovan nudist digit ratio

Photons are less interactive with our fabric of space time than solid matter. So in effect they are less grounded in reality actually.

(http://www.autoadmit.com/thread.php?thread_id=5886135&forum_id=2…id#50024090)



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Date: July 25th, 2026 4:59 PM
Author: Cordovan nudist digit ratio

In a vacuum, it does. But irl the light will likely collide with other particles convert into heat energy and disperse.

(http://www.autoadmit.com/thread.php?thread_id=5886135&forum_id=2…id#50023947)



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Date: July 25th, 2026 5:06 PM
Author: Emerald Bespoke Gay Wizard Principal's Office

Wrong answer

(http://www.autoadmit.com/thread.php?thread_id=5886135&forum_id=2…id#50023959)



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Date: July 25th, 2026 6:12 PM
Author: Cordovan nudist digit ratio

lol ok

(http://www.autoadmit.com/thread.php?thread_id=5886135&forum_id=2…id#50024087)



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Date: July 25th, 2026 4:59 PM
Author: Topaz toaster institution

this whole place is a churning soup of gasses full of life and processes we don't understand

(http://www.autoadmit.com/thread.php?thread_id=5886135&forum_id=2…id#50023948)



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Date: July 25th, 2026 4:59 PM
Author: adulterous flatulent old irish cottage



(http://www.autoadmit.com/thread.php?thread_id=5886135&forum_id=2…id#50023949)



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Date: July 25th, 2026 5:01 PM
Author: Sooty diverse jew tanning salon



(http://www.autoadmit.com/thread.php?thread_id=5886135&forum_id=2…id#50023954)



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Date: July 25th, 2026 8:29 PM
Author: Navy spectacular mental disorder



(http://www.autoadmit.com/thread.php?thread_id=5886135&forum_id=2…id#50024324)



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Date: July 25th, 2026 5:05 PM
Author: doobsian laughsome party of the first part selfie

These people will tell you that if you're riding a bike and shine a flashlight, the light will have the same speed as it would if you were standing still. Physics is like some weird cult

(http://www.autoadmit.com/thread.php?thread_id=5886135&forum_id=2…id#50023958)



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Date: July 25th, 2026 5:09 PM
Author: Emerald Bespoke Gay Wizard Principal's Office



(http://www.autoadmit.com/thread.php?thread_id=5886135&forum_id=2…id#50023965)



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Date: July 25th, 2026 5:10 PM
Author: Cyan generalized bond



(http://www.autoadmit.com/thread.php?thread_id=5886135&forum_id=2…id#50023968)



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Date: July 25th, 2026 5:27 PM
Author: Glittery spot



(http://www.autoadmit.com/thread.php?thread_id=5886135&forum_id=2…id#50023999)



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Date: July 25th, 2026 6:12 PM
Author: Cordovan nudist digit ratio

omg xo 2026

(http://www.autoadmit.com/thread.php?thread_id=5886135&forum_id=2…id#50024086)



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Date: July 25th, 2026 8:32 PM
Author: Coiffed school pistol



(http://www.autoadmit.com/thread.php?thread_id=5886135&forum_id=2…id#50024331)



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Date: July 25th, 2026 8:35 PM
Author: Pearly clown chapel



(http://www.autoadmit.com/thread.php?thread_id=5886135&forum_id=2…id#50024338)



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Date: July 25th, 2026 6:05 PM
Author: insanely creepy main people dilemma

something about number of photons and distance and square roots; i don't really remember 1st semester physics that good.

(http://www.autoadmit.com/thread.php?thread_id=5886135&forum_id=2…id#50024072)



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Date: July 25th, 2026 6:07 PM
Author: Emerald Bespoke Gay Wizard Principal's Office

Nah, photons don't just get tired and fall to the ground

(http://www.autoadmit.com/thread.php?thread_id=5886135&forum_id=2…id#50024075)



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Date: July 25th, 2026 6:13 PM
Author: adulterous flatulent old irish cottage



(http://www.autoadmit.com/thread.php?thread_id=5886135&forum_id=2…id#50024088)



Reply Favorite

Date: July 25th, 2026 8:54 PM
Author: Cyan generalized bond



(http://www.autoadmit.com/thread.php?thread_id=5886135&forum_id=2…id#50024375)