Ultimate space simulation software

Search found 227 matches

  • 1
  • 2
  • 3
  • 4
  • 5
  • 16
by Propulsion Disk
26 Jun 2019 06:59
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Questions
Replies: 1614
Views: 200960

Science and Astronomy Questions

30238 I can't really think of anything which could be called a physical property in any meaningful sense, and not be described in this way.  If it can't be described through quantitative relationships in principle, I would consider it unphysical and irrelevant.  At best, we may say there can be phy...
by Propulsion Disk
25 Jun 2019 12:37
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy News
Replies: 676
Views: 92478

Science and Astronomy News

30226 I think it is a matter of realizing that the more one learns the more one realizes they have yet to learn.  I've found that to be true in scientific advancements that, although we know more than we used to know, that knowledge opens up a whole new plane and direction of learning where it make...
by Propulsion Disk
25 Jun 2019 12:27
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy News
Replies: 676
Views: 92478

Science and Astronomy News

30224 The wisest humans are those who realize they know nothing. But the ones who are at least fairly confident in their sense of knowledge have an advantage, they have the strength to get somewhere in the advancement of science, and for me? I am not one of those people, and therefore do not have t...
by Propulsion Disk
25 Jun 2019 11:52
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Questions
Replies: 1614
Views: 200960

Science and Astronomy Questions

Just a quick question about the values of mathematics (yet still a physics question). Are there mathematical descriptions for all physical properties? or are quantitative descriptions limited by how much they can present without the use of words. And what about qualitative descriptions? I feel that ...
by Propulsion Disk
13 Jun 2019 07:31
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Questions
Replies: 1614
Views: 200960

Science and Astronomy Questions

Watsisname wrote:
Qr Bbpost I hope that helps!

Yes, this concludes the entropy saga. Thank you again WHN! i'll keep reading more and more about this, and all the other fields of physics, and maybe someday, be just as smart as you. :) Maybe...
by Propulsion Disk
12 Jun 2019 07:13
Forum: Development
Topic: SpaceEngine 0.990 Release
Replies: 73
Views: 6799

SpaceEngine 0.990 Release

I'm late! but SE is out!!! I don't have the money to buy it at the moment though, so that stinks. :(
by Propulsion Disk
12 Jun 2019 07:05
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Questions
Replies: 1614
Views: 200960

Science and Astronomy Questions

29653 Another way that conversion to heat can increase the entropy is that the heat may be radiated to the environment, which increases the number of microstates since then there are photons to account for, or vibrations in surrounding molecules if the transfer involves conduction or convection. On...
by Propulsion Disk
10 Jun 2019 07:24
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Questions
Replies: 1614
Views: 200960

Science and Astronomy Questions

29508 Not necessarily, and in fact this doesn't work with the expansion of the universe.  Let's look in a bit more detail. In some cases, such as gas expanding to fill its container, it is true that the expansion is associated with increasing entropy, and volume will appear in the expression for th...
by Propulsion Disk
09 Jun 2019 09:22
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Questions
Replies: 1614
Views: 200960

Science and Astronomy Questions

29483 I have something that I cannot understand. Just after a Big Bang. The universe is very small and hot. It would reach thermodynamic equilibrium long long before today. One probable explanation is that the Universe spend most of its time in a Heat Death. However anything could happen in a very ...
by Propulsion Disk
08 Jun 2019 12:40
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Questions
Replies: 1614
Views: 200960

Science and Astronomy Questions

29439 If a civilization is powerful enough to create a universe, could they do entropy reduction to survive the Heat Death? Let's first take a look at what entropy is. let's start with an example, say it's winter and it's freezing outside, so, you turn your heater on (or up). the tempertures are no...
by Propulsion Disk
21 Mar 2019 17:44
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Questions
Replies: 1614
Views: 200960

Science and Astronomy Questions

Alright I got it now, thanks for answering WHN! also, ever sense you posted that pbs spacetime video, I've been watching them and been gaining a lot more knowledge from them, so, thanks for introducing me to them too! :lol:
by Propulsion Disk
20 Mar 2019 07:15
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Questions
Replies: 1614
Views: 200960

Science and Astronomy Questions

27699 What we can change is the relationship between proper time and coordinate time.  But this is just what time dilation is.  A moving clock will tick fewer seconds of proper time for a given amount of coordinate time (coordinate time being the time measured in our non-moving frame).Example:  A s...
by Propulsion Disk
19 Mar 2019 20:47
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Questions
Replies: 1614
Views: 200960

Science and Astronomy Questions

27667 There's a subtle difficulty with this question.  What do we mean by "making time go faster"?  Time can refer to two different things: coordinate time and proper time.   I meant proper time, both would be good to know, but I would want to know how time is in the "spacetime disto...
by Propulsion Disk
19 Mar 2019 07:48
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Questions
Replies: 1614
Views: 200960

Science and Astronomy Questions

This still doesn't answer what I asked, I said, "if you could SPEED UP TIME", not "if you could go as fast as light".
by Propulsion Disk
18 Mar 2019 06:46
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Questions
Replies: 1614
Views: 200960

Science and Astronomy Questions

27646 I could answer this question more thoroughly, but at risk of messing up my physics and embarrassing myself, I'll let Watsisname explain it instead. Suffice to say that I don't think a faster procession of time for one observer would radically change the space-time diagram, aside from shorteni...
  • 1
  • 2
  • 3
  • 4
  • 5
  • 16