Free planetarium

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by midtskogen
24 Sep 2017 02:16
Forum: Off-topic Discussions
Topic: Show off your work
Replies: 126
Views: 8326

Show off your work

The wall is narrow, much narrower than a regular 2 lane highway.  However, the length of the wall is much over the resolving limit of 105 km, so one could say that it spans a distance much greater than what can see from the Moon, though the structure itself is far from visible (no more visible than ...
by midtskogen
23 Sep 2017 12:46
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Videos
Replies: 252
Views: 11909

Science and Astronomy Videos

Plato's cave allegory again! :)
by midtskogen
22 Sep 2017 21:02
Forum: Off-topic Discussions
Topic: Show off your work
Replies: 126
Views: 8326

Show off your work

I was in Beijing this week.  I had to present a paper to get it published (IEEE/ICIP2017).  So I went to see a section of the Great Wall, which is compulsory, I guess.  The hike along a non-restored section of the wall was actually much more enjoyable than the restored section which was just crowded...
by midtskogen
21 Sep 2017 06:18
Forum: Off-topic Discussions
Topic: The Future of Humanity & Intelligent life in the universe
Replies: 190
Views: 9086

The Future of Humanity & Intelligent life in the universe

I think you forgot that the terrain is not always flat and featureless.  The layout of cities are restricted by hills, rivers, lakes, and so on.
by midtskogen
18 Sep 2017 16:27
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Videos
Replies: 252
Views: 11909

Science and Astronomy Videos

Newton may have been the first to say something along those lines explaining what science is and isn't, though he actually strongly rejected what science now uses, the hypothetico-deductal method, but favoured pure induction (i.e. strictly collect all observations, then generalise).  A translation t...
by midtskogen
18 Sep 2017 08:28
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Videos
Replies: 252
Views: 11909

Science and Astronomy Videos

Yes, we might have to get used to the idea that we're forever trapped in the cave,  There's no hint that we somehow can transcend out of spacetime to get a view of it from the outside, seeing everything everywhere, the past, present and the future, becoming omniscient as seen from the inside.  That'...
by midtskogen
18 Sep 2017 03:38
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Videos
Replies: 252
Views: 11909

Science and Astronomy Videos

Reading this discussion it's hard not to think of Plato's allegory of the cave.  All observable phenomena are projections on the cave wall, projections which we believe to be reality. Discussing what these are projections are is very much philosophy as it is science (that division is fairly recent a...
by midtskogen
18 Sep 2017 03:23
Forum: Science and Astronomy Discussions
Topic: Total Solar Eclipse 2017
Replies: 309
Views: 7911

Total Solar Eclipse 2017

13690 There shouldn't be any limitation for that.  It's just discouraged to have several posts in a row in the same thread. Makes sense.  But I got that error message when I tried to post here just after having posted in the science news thread.  I waited a minute and tried again, and then the post...
by midtskogen
17 Sep 2017 22:33
Forum: Science and Astronomy Discussions
Topic: Total Solar Eclipse 2017
Replies: 309
Views: 7911

Total Solar Eclipse 2017

Yes, that's what an eclipse looks like!

EDIT: I'm not allowed to post too soon after a post in another thread?
by midtskogen
17 Sep 2017 22:30
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy News
Replies: 304
Views: 13242

Science and Astronomy News

Should this discussion be moved to a more suitable thread? I'd like to join, but I think the discussion is drifting away from the news topic.
by midtskogen
13 Sep 2017 21:43
Forum: Science and Astronomy Discussions
Topic: Total Solar Eclipse 2017
Replies: 309
Views: 7911

Total Solar Eclipse 2017

Watsisname wrote:
Qr Bbpost now there's a slight chance this may happen.

;)
Keep us informed.
by midtskogen
13 Sep 2017 09:32
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Videos
Replies: 252
Views: 11909

Science and Astronomy Videos

Wow.  Magnetic tidal forces. :)
by midtskogen
13 Sep 2017 03:37
Forum: Off-topic Discussions
Topic: Unusual weather
Replies: 143
Views: 5771

Unusual weather

13429 I still can't decide which is weirder.  The last 2.5 months of nothing, or that the previous spring was so wet that we're still technically above normal for the cumulative precip... It's like public transport in the rush hours.  Four bus departures an hour might mean four buses at the same ti...
by midtskogen
10 Sep 2017 12:42
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy News
Replies: 304
Views: 13242

Science and Astronomy News

The last one is not directed towards Earth, but there might be some radio blackout currently.
by midtskogen
10 Sep 2017 11:05
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy News
Replies: 304
Views: 13242

Science and Astronomy News

The sun just had an X8.2 flare. Near the limb.
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