Ultimate space simulation software
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- 22 Apr 2019 12:39
- Forum: Off-topic Discussions
- Topic: Show off your work
- Replies: 359
- Views: 63882
Show off your work
Another nice day.
- 19 Apr 2019 08:02
- Forum: Off-topic Discussions
- Topic: Show off your work
- Replies: 359
- Views: 63882
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.
Oh, the incident in Paris Monday evening. It wasn't us.
- 14 Apr 2019 11:20
- Forum: Off-topic Discussions
- Topic: Totally off-topic thread
- Replies: 895
- Views: 129782
Totally off-topic thread
Playing with a geiger-muller counter in an airplane. It was under 0.1 at the ground.
- 14 Apr 2019 02:04
- Forum: Science and Astronomy Discussions
- Topic: Science and Astronomy News
- Replies: 617
- Views: 73701
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.
- 13 Apr 2019 23:27
- Forum: Science and Astronomy Discussions
- Topic: The first black hole photo
- Replies: 28
- Views: 1000
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 ...
- 13 Apr 2019 15:15
- Forum: Science and Astronomy Discussions
- Topic: The first black hole photo
- Replies: 28
- Views: 1000
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...
- 13 Apr 2019 13:36
- Forum: Science and Astronomy Discussions
- Topic: 3 facts maybe you don't know about antimatter
- Replies: 8
- Views: 206
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.
- 12 Apr 2019 03:02
- Forum: Science and Astronomy Discussions
- Topic: The first black hole photo
- Replies: 28
- Views: 1000
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.
- 11 Apr 2019 06:30
- Forum: Science and Astronomy Discussions
- Topic: The first black hole photo
- Replies: 28
- Views: 1000
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...
- 10 Apr 2019 23:24
- Forum: Science and Astronomy Discussions
- Topic: The first black hole photo
- Replies: 28
- Views: 1000
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?
- 10 Apr 2019 12:21
- Forum: Science and Astronomy Discussions
- Topic: The first black hole photo
- Replies: 28
- Views: 1000
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...
- 10 Apr 2019 06:15
- Forum: Science and Astronomy Discussions
- Topic: The first black hole photo
- Replies: 28
- Views: 1000
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?
- 10 Apr 2019 01:23
- Forum: Science and Astronomy Discussions
- Topic: The first black hole photo
- Replies: 28
- Views: 1000
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 ...
- 08 Apr 2019 09:31
- Forum: Science and Astronomy Discussions
- Topic: Science and Astronomy Videos
- Replies: 412
- Views: 53410
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
- 06 Apr 2019 14:40
- Forum: Off-topic Discussions
- Topic: Show off your work
- Replies: 359
- Views: 63882
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...