Welcome, Guest

Author Topic: Speed of light  (Read 2456 times)

cwong

  • *
  • Posts: 1
Speed of light
« on: September 03, 2011, 10:49:51 AM »
Im new to this, it's interesting, but when i tried the light pulse thing, how do you actually tell how long it takes for the light to reach another body? It says 1.2 seconds to reach the moon, but i can't find a clock or something that says that...
is there actually something that will tell you the time it takes for the light pulse to reach someone or do i have to manually use a stopwatch?

Bla

  • Global Moderator
  • *****
  • Posts: 1013
  • The stars died so you can live.
Re: Speed of light
« Reply #1 on: September 03, 2011, 12:02:42 PM »
You can use the time step menu:

You can set 1 sec = [time], and it'll fix the accuracy of the simulation so that each second in the program is one real second.

(One time step is the amount of time (in the program) between each time it calculates the position of all the objects in the simulation, so the more you increase it, the more inaccurate it gets.)

In this simulation, each time one second passes in the real world, 8.11 hours pass in the simulation.

Dan Dixon

  • Creator of Universe Sandbox
  • Developer
  • *****
  • Posts: 3244
    • Personal Site
Re: Speed of light
« Reply #2 on: October 25, 2011, 04:07:20 PM »
A stopwatch is an interesting idea.

Thanks Bla for the screenshot. Very helpful.