Ultimate space simulation software

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by Watsisname
17 Sep 2018 20:55
Forum: General Discussions
Topic: Physical simulation of the space engine
Replies: 5
Views: 108

Physical simulation of the space engine

22862 Can you tell me what physical simulations have been implemented in the space engine? I think Space Engine involves more emulation than simulation.  For example it never simulates the geological processes behind terrain building or erosion.  It instead emulates surface features by procedural a...
by Watsisname
16 Sep 2018 02:02
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Questions
Replies: 1094
Views: 101691

Science and Astronomy Questions

Since the light reflected by Mars comes from the Sun, so instead of seeing Mars 5 minutes in the past, we would not be seeing it in 18 minutes? ... OK. I had supposed that because if the sun went out and then re-started it would take 18 minutes for the light to reach Mars and then reflect on Earth....
by Watsisname
15 Sep 2018 03:15
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Questions
Replies: 1094
Views: 101691

Science and Astronomy Questions

Changing the plane of the orbits to get a Hubble-ISS rendezvous is the most infeasible part.  Changing orbital altitude isn't too bad, but plane change maneuvers in low orbit are...  insanely  delta-v expensive.  You can get a sense of this in KSP or Orbiter.  And then factoring in what midtskogen n...
by Watsisname
11 Sep 2018 04:04
Forum: Off-topic Discussions
Topic: Show off your work
Replies: 262
Views: 45159

Show off your work

Yeah, I was thinking of alliteration (spirit of summer stands), and also used a lot of s's and soft c's, and generally getting sounds to repeat or flow together, but I didn't always hit it on the first syllable.  (Like the s in rising.)  Surging is a good one. :)
by Watsisname
11 Sep 2018 03:38
Forum: Off-topic Discussions
Topic: Show off your work
Replies: 262
Views: 45159

Show off your work

Meteorological autumn has arrived, and as I lay on the edge of an island and watched the weather roll in, I wrote a poem.  (Yes, I love poetry).   I didn't worry too much about fitting formal poetic devices, but I think it worked out nice. I lie on winter's precipice Surrounded by never ending w...
by Watsisname
11 Sep 2018 03:28
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Questions
Replies: 1094
Views: 101691

Science and Astronomy Questions

Lol. :P   At the risk of taking it too seriously, 24 - (a+b+c+d-e) makes sense, but why minus f/g?  Also to be consistent each term in the equations should have units of hours, but f/g seems like it would be dimensionless.
by Watsisname
10 Sep 2018 15:44
Forum: Space Journeys
Topic: Image Dump
Replies: 1854
Views: 186782

Image Dump

Aborygen, wow, all of those are excellent and very unique.
by Watsisname
10 Sep 2018 15:42
Forum: Science and Astronomy Discussions
Topic: Astrophotography
Replies: 253
Views: 26971

Astrophotography

Beautiful, midtskogen!
by Watsisname
10 Sep 2018 05:02
Forum: Feedback and Suggestions
Topic: Perhaps a useful resource for further developing wormholes
Replies: 22
Views: 3780

Perhaps a useful resource for further developing wormholes

22719 Hell yeah, 10th post! I am very tempted to remove all 10 of them and give 3 days off for spamming the forum with unnecessary multi-posts and answering old posts that did not need to be or already were answered.  In fact, I believe I will.   That is not an appropriate way to get to 10 posts, n...
by Watsisname
10 Sep 2018 01:43
Forum: Off-topic Discussions
Topic: The Future of Humanity & Intelligent life in the universe
Replies: 247
Views: 47064

The Future of Humanity & Intelligent life in the universe

The warp bubble is quite visible to those outside of it.  Light rays are highly deflected by it. :) These are two visualizations made by the SXS Collaboration.  (This is the same group that makes the visualizations for the gravitational waves from events detected by LIGO, so they are credible). ugvs...
by Watsisname
10 Sep 2018 00:42
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy News
Replies: 465
Views: 46891

Science and Astronomy News

Scott Manley had a pretty good video blog about it, addressing and correcting a lot of the misconceptions that arose in the news reports.

by Watsisname
10 Sep 2018 00:37
Forum: Off-topic Discussions
Topic: The Future of Humanity & Intelligent life in the universe
Replies: 247
Views: 47064

The Future of Humanity & Intelligent life in the universe

I mostly mean the appearance of the bubble.   The starting point for speculating on Alcubierre drives is to assume a particular geometry of the space-time.  The mathematics of general relativity then predicts the paths that light rays will take through that space-time, and therefore what the warp ef...
by Watsisname
09 Sep 2018 18:08
Forum: Science and Astronomy Discussions
Topic: Solar System dynamics discussion thread
Replies: 83
Views: 4370

Solar System dynamics discussion thread

I previously shared this in the science videos thread, but I'd like to copy it here as well, as I think it fits nicely with the themes of this thread. In this case, our efforts to understand the physics of planet and solar system formation.  Most of this physics is pretty  well understood and connec...
by Watsisname
09 Sep 2018 17:53
Forum: Off-topic Discussions
Topic: The Future of Humanity & Intelligent life in the universe
Replies: 247
Views: 47064

The Future of Humanity & Intelligent life in the universe

That makes more sense. :)  Yes, it is nice that the Alcubierre drive, being within the realm of general relativity, can be described mathematically.  The equations work both ways, so on one hand you can take a given distribution of matter and energy and predict how space-time behaves around it, or i...
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