Ultimate space simulation software

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by midtskogen
22 Apr 2019 12:39
Forum: Off-topic Discussions
Topic: Show off your work
Replies: 360
Views: 64034

Show off your work

Another nice day.
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by midtskogen
19 Apr 2019 08:02
Forum: Off-topic Discussions
Topic: Show off your work
Replies: 360
Views: 64034

Show off your work

Easter weather in Norway could hardly be better. We spent the first days of this week in Paris, which wasn't much warmer, really.

Oh, the incident in Paris Monday evening. It wasn't us.
by midtskogen
14 Apr 2019 11:20
Forum: Off-topic Discussions
Topic: Totally off-topic thread
Replies: 895
Views: 130030

Totally off-topic thread

Playing with a geiger-muller counter in an airplane. It was under 0.1 at the ground.
by midtskogen
14 Apr 2019 02:04
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy News
Replies: 619
Views: 73946

Science and Astronomy News

Stellarator wrote:
Qr Bbpost this week has been a busy one!

Yes.  Also worthy mentions are the Falcon Heavy launch with recovery of all boosters, and the Israeli crash on the Moon.
by midtskogen
13 Apr 2019 23:27
Forum: Science and Astronomy Discussions
Topic: The first black hole photo
Replies: 28
Views: 1010

The first black hole photo

This is similar to how regular image compression works.  You apply some transform to the image (or in practice to blocks that the image is divided into).  Now that you have converted the image to the frequency domain, you do the actual compression by deliberately throwing away data by a step called ...
by midtskogen
13 Apr 2019 15:15
Forum: Science and Astronomy Discussions
Topic: The first black hole photo
Replies: 28
Views: 1010

The first black hole photo

Here's another video from a couple of years ago explaining the challenges of creating the photo: BIvezCVcsYs A big challenge is that the observations are incomplete, and algorithms have to fill in.  If no assumptions whatsoever are made, the observations are ambiguous.  We have a good idea what to e...
by midtskogen
13 Apr 2019 13:36
Forum: Science and Astronomy Discussions
Topic: 3 facts maybe you don't know about antimatter
Replies: 9
Views: 228

3 facts maybe you don't know about antimatter

My thoughts are that concepts taken from science fiction movies, whilst loosely based on scientific knowledge, do not offer solutions. If we're lucky we might have cost-effective fusion power plants by 2050.  Anti-matter rockets, if at all practical and possible in a safe way, hardly.
by midtskogen
12 Apr 2019 03:02
Forum: Science and Astronomy Discussions
Topic: The first black hole photo
Replies: 28
Views: 1010

The first black hole photo

Salvo wrote:
Qr Bbpost If I could have chosen a way to die that would definitely be the way.

For outside observers you would become immortal.
by midtskogen
11 Apr 2019 06:30
Forum: Science and Astronomy Discussions
Topic: The first black hole photo
Replies: 28
Views: 1010

The first black hole photo

Very interesting, Wats. 28216 Previous black hole photos are just jets and accretion disks not actual black holes in the center Jets have been photographed (the jet in this case is suitable for amateur photography), but an accretion disk has not been photographed before.  An actual black hole cannot...
by midtskogen
10 Apr 2019 23:24
Forum: Science and Astronomy Discussions
Topic: The first black hole photo
Replies: 28
Views: 1010

The first black hole photo

Watsisname wrote:
Qr Bbpost it would take you another 28 hours to reach the center, as measured on your own clock.

If you cross the event horizon at an angle, would that change?
by midtskogen
10 Apr 2019 12:21
Forum: Science and Astronomy Discussions
Topic: The first black hole photo
Replies: 28
Views: 1010

The first black hole photo

I had a slight hope that they would present something unexpected in the image and could say that this was something we hadn't thought of but it makes sense now and here's why.  Would be more exciting. :) A major breakthrough is that there has been established a method for such imaging.  The image lo...
by midtskogen
10 Apr 2019 06:15
Forum: Science and Astronomy Discussions
Topic: The first black hole photo
Replies: 28
Views: 1010

The first black hole photo will be released tomorrow

First reaction: How boring, looks just like the predictions. Do we know already what there is to know?
by midtskogen
10 Apr 2019 01:23
Forum: Science and Astronomy Discussions
Topic: The first black hole photo
Replies: 28
Views: 1010

The first black hole photo will be released tomorrow

Countless terabytes of scientific data to be condensed into an image for an audience familiar with the Interstellar imagery, what could possibly go wrong? More seriously, what they'll show today will be interesting, but perhaps even more interesting will be what they've learnt which is not suitable ...
by midtskogen
08 Apr 2019 09:31
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Videos
Replies: 413
Views: 53522

Science and Astronomy Videos

midtskogen wrote:
Rocket experiment as recorded by one of our meteor cameras (8x speed).  The launch from Andøya in northern Norway was part of NASA's AZURE experiments to study northern lights.

Today's APOD
by midtskogen
06 Apr 2019 14:40
Forum: Off-topic Discussions
Topic: Show off your work
Replies: 360
Views: 64034

Show off your work

Large fireball  over Northern Norway on the 29th March 2019.  My article is in Norwegian, but the brief summary is that by using video from one camera and infrasound from another location and wind data (luckily a weather balloon was released nearby a few minutes after the event), we estimate that a...
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