Free planetarium

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by midtskogen
25 Jul 2017 11:32
Forum: Science and Astronomy Discussions
Topic: Total Solar Eclipse 2017
Replies: 52
Views: 1139

Total Solar Eclipse 2017

10542 I've also just acquired a GoPro for recording the period around totality in 4k.  I doubt it will be of exceptional quality in the low light conditions, but hopefully it should suffice for getting the crowd reactions and changing appearance of the landscape and sky.  Mainly I just want somethi...
by midtskogen
23 Jul 2017 14:53
Forum: Science and Astronomy Discussions
Topic: Total Solar Eclipse 2017
Replies: 52
Views: 1139

Total Solar Eclipse 2017

10460 , in your case I wonder if it might be good to get to Madras, then the morning of, break camp early and drive a bit south before the eclipse starts.  Assuming the road out is passable then, you can move many kilometers from the center line without losing very much totality duration, yet put a...
by midtskogen
23 Jul 2017 12:17
Forum: Off-topic Discussions
Topic: Show off your work
Replies: 90
Views: 6016

Show off your work

It's possible to build your own seismometer with mostly plumbing parts, but I found that it was likely cheaper to buy the SEP seismometer kit and have it shipped from the UK.  I don't find this kit for sale anymore, but I didn't search exhaustively. I wrote my own software to do the logging (Windows...
by midtskogen
23 Jul 2017 10:59
Forum: Science and Astronomy Discussions
Topic: Total Solar Eclipse 2017
Replies: 52
Views: 1139

Total Solar Eclipse 2017

10435 Give yourself enough time and bring extra necessities, because you may be stuck on the road for a while, especially getting out! It's not a good plan, but I will need to get out of the eclipse zone in Madras immediately after totality to head back to California.  The totality zone will be lik...
by midtskogen
22 Jul 2017 15:51
Forum: Off-topic Discussions
Topic: Show off your work
Replies: 90
Views: 6016

Show off your work

The M6.7 earthquake off the coast of Turkey a couple of days ago as recorded by my seismometer in Norway.  The amplitude goes slightly beyond the instrument's range, both for the S wave and the surface waves.
jordskjelv-20170720.png
by midtskogen
22 Jul 2017 15:32
Forum: Science and Astronomy Discussions
Topic: Can you prove that the Earth isn't a hollow sphere?
Replies: 46
Views: 782

Can you prove that the Earth isn't a hollow sphere?

10407  (Perhaps an underground nuclear detonation could do it) Professional seismometers will pick up surface waves of underground nuclear explosions anywhere, except perhaps for the weakest and most distant nuclear explosions.  My seismometer is in the borderland of picking up Kim's explosions in ...
by midtskogen
22 Jul 2017 15:22
Forum: Science and Astronomy Discussions
Topic: Can you prove that the Earth isn't a hollow sphere?
Replies: 46
Views: 782

Can you prove that the Earth isn't a hollow sphere?

10351 On the old forum, midtskogen showed a recording of an earthquake which took place in New Zealand, from his station in Norway.  A key observation in this recording is the lack of direct shear waves. Thanks, Wats.  I was going to make a post that I have an instrument in my basement that I bough...
by midtskogen
21 Jul 2017 12:57
Forum: Science and Astronomy Discussions
Topic: Can you prove that the Earth isn't a hollow sphere?
Replies: 46
Views: 782

Can you prove that the Earth isn't a hollow sphere?

It was well known in antiquity that the Earth was round for several reasons. Not just thanks to Eratosthenes . In particular, it was also noted that lunar eclipses occurred at different times of the day depending on the observation location.  Pliny (1st century AD) gave a long list of arguments in h...
by midtskogen
20 Jul 2017 12:46
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy Videos
Replies: 186
Views: 8637

Science and Astronomy Videos

Isaac seems somewhat Earth centric assuming that intelligent life must be like on Earth.  Life on Earth is a product of the conditions on Earth and our solar system.  Life elsewhere might not require the same and be different instead.  But I think he's right that there is a huge distance between lif...
by midtskogen
19 Jul 2017 04:27
Forum: Off-topic Discussions
Topic: Theology and Spirituality
Replies: 37
Views: 714

Theology and Spirituality

10168 Physicists are well aware of this.  Sometimes the best way to solve a problem is to stop thinking about the problem.  Do something else and let your unconscious mind mull it over for a while.  And not just for physicists, but mathematicians, musicians, writers, programmers... anyone who has t...
by midtskogen
18 Jul 2017 13:34
Forum: Off-topic Discussions
Topic: Theology and Spirituality
Replies: 37
Views: 714

Theology and Spirituality

10138 There are plenty of religions where all things have souls, including plants and some of these religions are far older than the Judeo-Christian religions. This seems to be supported even by the Indo-European languages.  There is good evidence that in pre IE times (more than 6000 years ago) the...
by midtskogen
18 Jul 2017 09:43
Forum: Off-topic Discussions
Topic: Theology and Spirituality
Replies: 37
Views: 714

Theology and Spirituality

10112 I'm having difficulty with the question, actually.  Can you elaborate or give an example of how you mean? I was asking for your view on how much consciousness is something real.  I don't know the science in this area, but I can think of ways to determine that the consciousness at least partly...
by midtskogen
17 Jul 2017 22:50
Forum: Off-topic Discussions
Topic: Theology and Spirituality
Replies: 37
Views: 714

Theology and Spirituality

10039 These realms are continually pushed back as we learn more and develop technology.  In the last century, cosmology and understanding of the evolution of the universe was such a realm.  In this century, I think it will be consciousness. Do you think think consciousness is fundamentally an illus...
by midtskogen
13 Jul 2017 07:24
Forum: Off-topic Discussions
Topic: Show off your work
Replies: 90
Views: 6016

Show off your work

Nice, Watsisname. Not so much snow in S Norway, dry side of the mountains. My view as i type this at 1000m elevation:
by midtskogen
09 Jul 2017 22:31
Forum: Science and Astronomy Discussions
Topic: Science and Astronomy News
Replies: 201
Views: 9272

Science and Astronomy News

That could ruin some shots for astrophotographers...
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