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Science

LiberalArkie

(19,057 posts) Wed Oct 22, 2025, 11:08 AM 20 hrs ago

A laser pointer at 2 billion fps makes the speed of light look... kinda weird

Wild...

2 replies

= new reply since forum marked as read

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A laser pointer at 2 billion fps makes the speed of light look... kinda weird (Original Post) LiberalArkie 20 hrs ago OP

Absolutely WOW. This is fascinating and will, I hope, encourage more cool science. erronis 20 hrs ago #1

Light travels the equiv of 8 times around the earth every second. One light year is a crazy thought. twodogsbarking 16 hrs ago #2

erronis

(21,685 posts)

1. Absolutely WOW. This is fascinating and will, I hope, encourage more cool science.

Reply to LiberalArkie (Original post)

Wed Oct 22, 2025, 11:41 AM

20 hrs ago

twodogsbarking

(16,299 posts)

2. Light travels the equiv of 8 times around the earth every second. One light year is a crazy thought.

Reply to LiberalArkie (Original post)

Wed Oct 22, 2025, 03:53 PM

16 hrs ago

Proxima Centauri: This is the closest star to our Sun, and it is a red dwarf star.
Distance: It is approximately 4.24 light-years from Earth. One light year 6 trillion miles.

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