Ultimate space simulation software

Search found 97 matches

  • 1
  • 2
  • 3
  • 4
  • 5
  • 7
by An'shur
21 Oct 2018 08:58
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Questions
Replies: 1115
Views: 109551

Science and Astronomy Questions

Watsisname, I was thinking about a universe which starts with a big bang, inflates and then instead of slowly expaning as our universe does, it slowly contracts. But I'll await what the other scenarios would look like.
by An'shur
17 Oct 2018 13:06
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Questions
Replies: 1115
Views: 109551

Science and Astronomy Questions

What if the universe was contracting instead of expanding ever since the big bang? Meaning, how would we see the universe if the Hubble constant was not 72.5 (km/s)/Mpc, but -72.5 (km/s)/Mpc ?  Would very far galaxies be approaching us faster than light? What would be the proper distance to the edg...
by An'shur
13 Oct 2018 04:23
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Questions
Replies: 1115
Views: 109551

Science and Astronomy Questions

I think you are right. Deccan Traps in india and the Siberian Traps consist of 1 million cubic kilometers or volcanic rock and 4 million km 3  respectively.   But from what I've read about these, I deduce that the eruptive activity probably lasted for a long while, instead of a single eruption. I ha...
by An'shur
12 Oct 2018 08:23
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Questions
Replies: 1115
Views: 109551

Science and Astronomy Questions

Watsisname , to sum up what this  wikipedia page  says, volcanic explosivity index (VEI) measures the power of a single volcanic eruption based on the volume of ejecta it produces, regardless whether it is lava, ash, gas or other materials. It is a decadic logarithmic scale. Ten times more ejecta a...
by An'shur
11 Oct 2018 09:37
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Questions
Replies: 1115
Views: 109551

Science and Astronomy Questions

Are Martian volcanoes actually supervolcanoes? On Earth, tectonic plates move over hot spots so that a supervolcano leaves behind a chain of calderas, but the terrain does not elevate much, if at all. Since Mars does not have plate tectonics, hot spots can pile lava up into enormous heights over mil...
by An'shur
06 Oct 2018 07:51
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Videos
Replies: 372
Views: 39769

Science and Astronomy Videos

Watsisname, thank you. I did not realize that galaxies collide all the time. :)
by An'shur
04 Oct 2018 11:45
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Videos
Replies: 372
Views: 39769

Science and Astronomy Videos

DoctorOfSpace , while we are at black hole mergers, scientists have observed a handful of stellar mass (more or less) black hole gravitational waves events. How often, statistically speaking, do binary supermassive black holes merge in the observable universe? I assume such events to be associated ...
by An'shur
27 Sep 2018 02:33
Forum: Off-topic Discussions
Topic: Sci-Fi (and other genre) Movies & TV Series
Replies: 20
Views: 2796

Sci-Fi (and other genre) Movies & TV Series

Stellarator wrote:
An'shur wrote:
Qr Bbpost I haven't seen the new Predator movie yet though.

You mean the new one that came out this year (2018)?

Yes, that one. Thanks for input. I guess I'll see for myself soon.
by An'shur
26 Sep 2018 08:22
Forum: Off-topic Discussions
Topic: Sci-Fi (and other genre) Movies & TV Series
Replies: 20
Views: 2796

Sci-Fi (and other genre) Movies & TV Series

How dare I forget to mention Predator and Alien franchises? I haven't seen the new Predator movie yet though.
by An'shur
21 Sep 2018 08:29
Forum: Off-topic Discussions
Topic: Sci-Fi (and other genre) Movies & TV Series
Replies: 20
Views: 2796

Sci-Fi (and other genre) Movies & TV Series

Stargate since childhood, I like all the movies and series, including SGU. I haven't seen much of TOS, but I like Star Trek in general, with DS9 being the best in my opinion. Regarding Star Wars, both originals and prequels occasionally make me want to re-watch again and again :) but I harshly disli...
by An'shur
15 Sep 2018 06:14
Forum: Off-topic Discussions
Topic: Dreams you've had
Replies: 102
Views: 31897

Dreams you've had

I had one interesting dream today in the morning. I was on Mars leading an anti-Earth rebellion. I recall commanding one of my underlings to close every spaceport to ships inbound from Earth. My command base was a large pyramid-like structure armed to the teeth. The air was breathable, but rusty or...
by An'shur
09 Sep 2018 09:30
Forum: Off-topic Discussions
Topic: The Future of Humanity & Intelligent life in the universe
Replies: 247
Views: 49047

The Future of Humanity & Intelligent life in the universe

22654 ... I've read through the links and concluded that even though the universe contains virtually limitless amount of resources, a civilization with exponential growth pattern would not be able to sustain itself. We can see it happening with humans. Overabundance of resources would lead to overi...
by An'shur
08 Sep 2018 03:11
Forum: Off-topic Discussions
Topic: The Future of Humanity & Intelligent life in the universe
Replies: 247
Views: 49047

The Future of Humanity & Intelligent life in the universe

My take on FTL-capable alien civilizations As discussed in  this  FFT's thread, over time, very small perturbations in the orbit of Uranus were measured, allowing the discovery of Neptune.  Without  computers, to emphasize. The amount of data and the time span required amazes me. It was nearly impo...
by An'shur
31 Aug 2018 02:17
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Questions
Replies: 1115
Views: 109551

Science and Astronomy Questions

Many super-Earth sized planets we have found outside of the Solar system are speculated to contain a lot of water. This implies a ~100 kilometers deep ocean bottomed by high pressure ice. I remember reading somewhere, that the ocean would be mineral-poor, lowering the chance of life arising there. Q...
by An'shur
10 Aug 2018 06:57
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Questions
Replies: 1115
Views: 109551

Science and Astronomy Questions

JackDole , Yes, the third example seems impossible, at least not with one epicycle. I attemped it, but the planet is slowest near the ellipse focal points. If you imagine the epicycle's (I used a barycenter) orbital period to be 1 and that of the planet -1, then you get an ellipse with the Sun in t...
  • 1
  • 2
  • 3
  • 4
  • 5
  • 7