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microscopic telescope by Galileo Galilei - Fri, 22 Jul 2016 13:11:48 EST ID:nsJ3UhuK No.56285 Ignore Report Reply Quick Reply
File: 1469207508500.png -(11018B / 10.76KB, 798x294) Thumbnail displayed, click image for full size. 11018
I just wondered, I have never heard of a microscopic telescope. By this I mean a device along the lines of a large nature-style camera lens or traditional telecope that is able to zoom in to the target area of a physical item and produce a 3d environment of that area through the lens? Surely theres an infinite amount of detail from a physical item We have all this advanced astronomical technology these days to look at things that lie in the distance. What would happen if technology was put into microscopic telecopes thanks everyone

TLDR: a lens of intricately layered magnifying glasses that self multiply
>>
Johann Bode - Sat, 23 Jul 2016 10:39:53 EST ID:aZptiHhB No.56287 Ignore Report Quick Reply
>>56285
The resolution of a telescope can be limited by a few things, diffraction, the atmosphere, the quality of the optics and the sampling of the camera. You suggest adding a microscope, in optics that concept already exists as focal extenders which increase the effective focal length of the telescope increasing the magnification. The problem is more magnification will only improve the resolution of a telescope if it's resolution is sampling limited, that means the pixels are too big to capture the full resolution. The vast majority of telescopes are not sampling limited, generally they are limited by the atmosphere or by diffraction if they are in space or use adaptive optics. No matter how much you increase the magnification you will never beat those limits. There is not an infinite about of detail you can achieve, there are physical limits such as diffraction. A telescope like Hubble is diffraction limited what you suggest would not improve it's resolution. You can only improve on diffraction buy building a bigger telescope or using shorter wavelengths.

You can't use this to make a 3D map either.


First telescope..? by Galileo Galilei - Tue, 15 Mar 2016 15:07:05 EST ID:ZvL5JrzH No.56129 Ignore Report Reply Quick Reply
File: 1458068825227.jpg -(11180B / 10.92KB, 236x197) Thumbnail displayed, click image for full size. 11180
Hi guys.
When I'm high at night, I love to watch moon/stars/...
So I figured it would be nice to look at it with a telescope ...
The problem is that I know absolutely nothing in astronomy !!!
I need some advice for choosing a telescope not too expensive (Max budget: $200)
>What can I expect to see with that?

(I live in a small town without light pollution)
2 posts omitted. Click Reply to view.
>>
Ejnar Hertzprung - Mon, 25 Apr 2016 21:23:06 EST ID:hnyGB63L No.56160 Ignore Report Quick Reply
1461633786831.jpg -(54813B / 53.53KB, 1192x292) Thumbnail displayed, click image for full size.
DICKS EVERYWHERE
>>
Vera Rubiin - Wed, 04 May 2016 01:18:27 EST ID:Y1TcIOce No.56182 Ignore Report Quick Reply
http://www.deepskywatch.com/Articles/what-can-i-see-through-telescope.html
>>
Edward Pickering - Mon, 06 Jun 2016 21:11:32 EST ID:qdIfo3Zb No.56218 Ignore Report Quick Reply
1465261892951.jpg -(13475B / 13.16KB, 474x1053) Thumbnail displayed, click image for full size.
>>56129
I know it's been a few months, but maybe you'll see it if you haven't bought one yet. I have a Celestron NexStar 102GT and it is awesome. It has the capability to track objects and it has decent magnification. It was right in the $200 range iirc, but I bought it years ago. I'm able to see the rings of Saturn(though it just looks like one ring). A couple of nights ago i realized Jupiter was in the sky and I was able to actually see some of the differing colors of the cloud bands. That was really cool. Pic is a snapshot from a video I took using a mount for my phone.
>>
Edward Pickering - Mon, 06 Jun 2016 21:13:53 EST ID:qdIfo3Zb No.56219 Ignore Report Quick Reply
>>56218

Well shit, picture looks worse on the computer than it does on my phone, but you can still make out the different colors.
>>
Joseph-Louis Lagrange - Sat, 02 Jul 2016 05:42:36 EST ID:hj23kf14 No.56259 Ignore Report Quick Reply
1467452556297.jpg -(68246B / 66.65KB, 453x539) Thumbnail displayed, click image for full size.
>>56219


Grey goo by Karl von Weizsacker - Thu, 23 Jun 2016 09:30:57 EST ID:ityObSKZ No.56249 Ignore Report Reply Quick Reply
File: 1466688657928.png -(609926B / 595.63KB, 700x991) Thumbnail displayed, click image for full size. 609926
Do you think somewhere grey goo is destroying everything?
>>
Joseph von Fraunhofer - Thu, 23 Jun 2016 23:57:26 EST ID:A260M6iH No.56250 Ignore Report Quick Reply
>>56249
If you mean leaving their planet, it means that they would have to behave intelligently enough to travel in space. I don't know if that's a realistic expectation but I also never read that book by that guy so I'm not an expert.
>>
Otto Struve - Fri, 24 Jun 2016 04:05:23 EST ID:x7oDvr/y No.56251 Ignore Report Quick Reply
>>56249
I hope so because that would be neat. I for one welcome our gooey new overlords.
>>
Alan Guth - Fri, 24 Jun 2016 16:18:56 EST ID:3t/weoS/ No.56253 Ignore Report Quick Reply
>>56250

All you need is to program the goo to build Von Neumann probes from asteroids and them using to spread.

Can't imagine any species would do such a thing but hey humans are crazy enough for nukes and M.A.D. so who knows?
>>
Kiyotsugu Hirayama - Sun, 26 Jun 2016 04:02:45 EST ID:sMBupno1 No.56254 Ignore Report Quick Reply
goo cant melt steel beams
>>
William Fowler - Thu, 30 Jun 2016 04:20:28 EST ID:x7oDvr/y No.56255 Ignore Report Quick Reply
>>56254
Your steel beams have been assimilated; all is goo, all is good.


Living Organisms as White Holes by emily - Sat, 04 Jun 2016 23:40:16 EST ID:6lTk9kB6 No.56212 Ignore Report Reply Quick Reply
File: 1465098016694.jpg -(880241B / 859.61KB, 1200x1200) Thumbnail displayed, click image for full size. 880241
I have deduced that all living organisms are White Holes. I call this the Living Organisms as White Holes Theory.

Evidence :
  1. when the cells of a living organism divide, it emits minute levels of light.
  2. living organisms create and excrete their own matter.

Please help me compound on this theory I want to talk to a real scientist. I have more to add but I need to go do chores. More later, like being four dimensions opposite of zero. (thought. The final frontier)
21 posts and 1 images omitted. Click Reply to view.
>>
Chushiro Hayashi - Mon, 13 Jun 2016 16:54:27 EST ID:6lTk9kB6 No.56243 Ignore Report Quick Reply
>>56242
Wow. All Im saying is it has never been tested before.
>>
George Herbig - Mon, 13 Jun 2016 17:02:01 EST ID:3t/weoS/ No.56244 Ignore Report Quick Reply
>>56243

Every time you eat something it's tested. Or when you're exposed to background radiation for that matter. Which itself has been grounds for extensive study.

In short there are no such thing as closed systems.
>>
Walter Adams - Tue, 14 Jun 2016 22:16:50 EST ID:AR+FDxN1 No.56245 Ignore Report Quick Reply
I used to think that maybe a life form is like a bubble of negative entropy. All around the universe matter is getting less organized as systems disperse their energy, but in life matter harnesses energy to organize itself temporarily. But I was wrong. It doesn't make any sense to think of life as a closed system. We radiate so much heat and excrete so much shit that there isn't any logical boundary to call a bubble. There is temporary organization, but it is constantly part of the greater universe. Everything is causally linked. Especially EM waves. Photons are being absorbed and radiated by your cells. In a trippy way, doesn't that make you a physical part of your surroundings?
>>
Jan Hendrik Oort - Mon, 20 Jun 2016 16:32:53 EST ID:3t/weoS/ No.56247 Ignore Report Quick Reply
>>56245

As far as I understand entropy, clustering of energy like in the form of planets or lifeforms is in fact a part of it. A zero-entropy universe would be stable, or in other words uniform.
>>
Russel Hulse - Tue, 21 Jun 2016 16:44:04 EST ID:pjhpxsvC No.56248 Ignore Report Quick Reply
1466541844221.gif -(919891B / 898.33KB, 200x200) Thumbnail displayed, click image for full size.
I wouldn't say that all living organisms have white holes, but caucasian girls certainly have white holes, if you know what I mean...

Biology is one hell of a science.


From the ISS by Joseph von Fraunhofer - Wed, 27 Apr 2016 13:56:07 EST ID:an1HFu9H No.56166 Ignore Report Reply Quick Reply
File: 1461779767539.webm [mp4] -(173569B / 169.50KB, 1280x720) Thumbnail displayed, click image for full size. 173569
I just came down to give you these /sagan/
4 posts and 4 images omitted. Click Reply to view.
>>
Joseph von Fraunhofer - Wed, 27 Apr 2016 14:00:53 EST ID:an1HFu9H No.56171 Ignore Report Quick Reply
1461780053539.webm [mp4] -(158953B / 155.23KB, 1280x720) Thumbnail displayed, click image for full size.
EARTH EVERYWEHRE
>>
Joseph von Fraunhofer - Wed, 27 Apr 2016 14:01:45 EST ID:an1HFu9H No.56172 Ignore Report Quick Reply
1461780105539.webm [mp4] -(1543345B / 1.47MB, 1280x720) Thumbnail displayed, click image for full size.
LIGHTS EVERYWHERE
>>
Joseph von Fraunhofer - Wed, 27 Apr 2016 14:03:10 EST ID:an1HFu9H No.56173 Ignore Report Quick Reply
1461780190539.webm [mp4] -(172529B / 168.49KB, 1280x720) Thumbnail displayed, click image for full size.
DICKS EVERYWHERE
>>
Georges-Henri Lemaitre - Thu, 02 Jun 2016 18:06:00 EST ID:YHjXylC8 No.56205 Ignore Report Quick Reply
Why are they all perfectly looped?
>>
Karl von Weizsacker - Sat, 04 Jun 2016 01:59:24 EST ID:gk6gFOAI No.56210 Ignore Report Quick Reply
1465019964368.jpg -(238017B / 232.44KB, 1600x661) Thumbnail displayed, click image for full size.
>>56205
If you look closely it actually fades to the beginning of the clip just before it restarts. Pretty clever imo.


poll time by Johannes Kepler - Sat, 06 Dec 2014 23:06:10 EST ID:Zbe0PVOU No.54770 Ignore Report Reply Quick Reply
File: 1417925170232.jpg -(230832B / 225.42KB, 1471x1896) Thumbnail displayed, click image for full size. 230832
Do you pronounce it "yur anus" or "yuran us".
35 posts and 6 images omitted. Click Reply to view.
>>
The Fool !oj3475yHBQ - Sat, 14 May 2016 23:28:55 EST ID:rhwUV3nh No.56184 Ignore Report Quick Reply
Urinus
>>
Joseph Taylor Jr. - Sun, 15 May 2016 05:50:41 EST ID:w9azQgXi No.56185 Ignore Report Quick Reply
YOU ARE ANUS
>>
Caroline Herschel - Sun, 29 May 2016 15:16:47 EST ID:66iQx6Zw No.56199 Ignore Report Quick Reply
Your anus.

As in "I can see the ring around your anus"
>>
Annie Cannon - Mon, 30 May 2016 15:30:24 EST ID:tQX5ylFX No.56200 Ignore Report Quick Reply
1464636624280.jpg -(44826B / 43.78KB, 500x363) Thumbnail displayed, click image for full size.
>>56199
You should probably wipe Uranus.
>>
Edward Barnard - Tue, 31 May 2016 13:07:46 EST ID:3t/weoS/ No.56201 Ignore Report Quick Reply
>>56200

I've heard it's more gasy than moist and nutty though.



Its happening! by Jocelyn Bell - Wed, 13 Apr 2016 05:21:04 EST ID:zo6zX05v No.56151 Ignore Report Reply Quick Reply
File: 1460539264849.jpg -(207439B / 202.58KB, 950x534) Thumbnail displayed, click image for full size. 207439
http://www.cnn.com/2016/04/12/us/breakthrough-starshot-space-probe-stephen-hawking-feat/index.html
5 posts omitted. Click Reply to view.
>>
William Huggins - Sun, 24 Apr 2016 05:05:01 EST ID:C3ALvdlc No.56158 Ignore Report Quick Reply
> How do they stop?
Do they?
>>
Hannes Alven - Sun, 24 Apr 2016 15:58:49 EST ID:415JX8nG No.56159 Ignore Report Quick Reply
>>56155
You would only need one laser system in each hemisphere.
The craft are moving independently of the earth, you would just have to fire at certain times of the day, the whole sky rotates around you every single day.
>>
Cecelia Payne-Gaposchkin - Tue, 26 Apr 2016 21:14:40 EST ID:r6jFVsbC No.56163 Ignore Report Quick Reply
>>56158
Why would they need to? I think idea is more or less for a flyby.
>>
Irwin Shapiro - Wed, 27 Apr 2016 08:41:53 EST ID:qxykRiwE No.56165 Ignore Report Quick Reply
>>56151
The Mote In God's Eye?
>>
Edward Pickering - Wed, 27 Apr 2016 19:37:24 EST ID:/CR0/A7p No.56175 Ignore Report Quick Reply
>>56158
>>56163

But long term, this would be cheaper than combustion. This would also work for manned missions.

You'd have to start decelerating 50% of the way there, if they're doing both with lasers. But they'd probably just use combustion to decelerate, which would significantly reduce weight too. Since it's for stopping and not the initial thrust. So I think that might work.

I realize it works great if you're just sending things out, but why develop this huge and incredibly useful ability and just use it to send out a dozen more voyagers?


NASA Mars announcement by Stevie Nothing - Mon, 28 Sep 2015 04:30:10 EST ID:piwlLnxF No.55700 Ignore Report Reply Quick Reply
File: 1443429010097.jpg -(21760B / 21.25KB, 600x450) Thumbnail displayed, click image for full size. 21760
http://www.smh.com.au/technology/sci-tech/is-it-aliens-nasa-sends-space-fans-into-frenzy-with-news-of-a-major-announcement-20150927-gjvxsf.html

>The biggest hint is that one of five speakers at the news briefing will be Lujendra Ojha from the Georgia Institute of Technology in Atlanta. Ojha made headlines in 2011 when he co-authored a study suggesting that liquid water flowed during the warmer months on Mars.

>He said at the time that, by accident, he noticed irregular features in images taken for another study of gullies in Mars craters. Using a computer algorithm to monitor changes over time, he began to see "finger-like" features and streaks that strongly resembled water. They would appear during warmer seasons and die away during cooler seasons. He has conducted research ever since, to determine if it is definitely water.
18 posts and 1 images omitted. Click Reply to view.
>>
Robert Dicke - Fri, 13 Nov 2015 05:49:18 EST ID:tQX5ylFX No.55808 Ignore Report Quick Reply
>>55807
And in effect so does your mom.
>>
Kiyotsugu Hirayama - Fri, 26 Feb 2016 14:58:51 EST ID:bUVcT3Vi No.56093 Ignore Report Quick Reply
>>55808
Good one bro!
>>
Viktor Ambartsumian - Sat, 27 Feb 2016 02:15:03 EST ID:tQX5ylFX No.56096 Ignore Report Quick Reply
>>56093
You put a 4 month old thread up for that? Good one bro!
>>
Friedrich von Struve - Sat, 27 Feb 2016 14:02:08 EST ID:pgmu6mYO No.56101 Ignore Report Quick Reply
>>56096
Why is everyone on this board such a bitch?
>>
Joseph von Fraunhofer - Sun, 10 Apr 2016 08:33:26 EST ID:/mLbrve3 No.56150 Ignore Report Quick Reply
>>56101
Autismus.


So New Horizons.. by Joseph Lockyer - Sun, 05 Jul 2015 17:48:57 EST ID:LNoHYvqf No.55473 Ignore Report Reply Quick Reply
File: 1436132937924.jpg -(2382B / 2.33KB, 530x297) Thumbnail displayed, click image for full size. 2382
Just went safe mode, for seemingly no reason. Either NASA saw something that they don't want us finding out, or some kind of aliens are trying to prevent their discovery. I mean, Pluto seems completely, artificially placed. It orbits on an entirely different plane than the rest of the planets in the solar system. I'm not a /tinfoil/ faggot, and I'm not talking about "greys". I want to have a serious discussion on the possibility of this, because I got super stoked about seeing high-res pictures of Pluto after reading about the last few developments, and this just seems too coincidental.
>pic related, newest pictures of Pluto.
19 posts and 8 images omitted. Click Reply to view.
>>
Fred Whipple - Tue, 25 Aug 2015 23:34:50 EST ID:P+fSJ1RL No.55634 Ignore Report Quick Reply
>>55582
The universe is fucking awesome.
>>
Henrietta Levitt - Fri, 19 Feb 2016 14:30:10 EST ID:6M9MO6b+ No.56068 Ignore Report Quick Reply
bump for the love of asteroids
>>
Paul Goldsmith - Sat, 20 Feb 2016 17:11:17 EST ID:NwG2VzXF No.56071 Ignore Report Quick Reply
>>56068
>Pluto
>asteroid

0/10
>>
Tadashi Nakajima - Thu, 31 Mar 2016 08:16:57 EST ID:Kz5Q207u No.56145 Ignore Report Quick Reply
>>55492
>We have exactly one datapoint for how rationally a species capable of space flight behaves, and it's "not at all".
I know his claim is baseless, but your implication is a logical fallacy. A lack of evidence showing that species capable of space flight behave rationally is not evidence that none (can) behave rationally. Not to mention there's a huge difference between space travel at the distances required to reach us/other planets supporting sentient life, and just being able to make it into space. We don't have even a single data point at all in regards to the level of rational behavior a species capable of space flight at those distances possesses.

Your argument is shit. His might be shit too, but he's not positing that pluto is an alien space station that houses blue-visioned aliens and serves as a research lab where they perform tests on humans. Therefore, your argument is shit and your criticism of his criticism is retarded.
>>
Tadashi Nakajima - Thu, 31 Mar 2016 08:17:46 EST ID:Kz5Q207u No.56146 Ignore Report Quick Reply
>>56145
rationally is not evidence that none (can) behave rationally... or necessarily would*


Where's The Flux by Edwin Hubble - Fri, 25 Mar 2016 03:54:23 EST ID:t1vMK9Uc No.56140 Ignore Report Reply Quick Reply
File: 1458892463622.png -(603447B / 589.30KB, 854x480) Thumbnail displayed, click image for full size. 603447
https://en.wikipedia.org/wiki/KIC_8462852

tl;dr - star has some really odd brightening and dimming patterns inconsistent with any hitherto known natural phenomenon. The best explanation is a comet having broken up in an extremely regular pattern at a really silly angle. A possibility raised is a civilization setting up a dyson swarm, or basically a bajillion solar panels coordinating with themselves to stay in orbit and produce the energy a super advanced space faring civilization needs, but on the other hand the system is dark in infrared light suggesting that the light from the star isn't being absorbed and converted into anything (which heats things > releases infrared, because nothing is 100% efficient)


any ideas on where the infrared might be, given that it's a dyson swarm? Or opinions on the correct natural explanation?
>>
Robert Wilson - Fri, 25 Mar 2016 08:57:25 EST ID:Lg4ZGohn No.56141 Ignore Report Quick Reply
>>56140
Here's some light curves for anyone interested.
https://sites.psu.edu/astrowright/2015/10/15/kic-8462852wheres-the-flux/
And this analysis helps to understand the topic:
http://www.datasciencecentral.com/profiles/blogs/kic-8462852-models-of-transits?xg_source=activity


Moonbase 3 by Ejnar Hertzprung - Fri, 12 Feb 2016 11:23:14 EST ID:+eqmThO1 No.56048 Ignore Report Reply Quick Reply
File: 1455294194760.jpg -(45231B / 44.17KB, 640x360) Thumbnail displayed, click image for full size. 45231
Ran across this and thought /sagan/ would appreciate it.

https://www.youtube.com/playlist?list=PLAE712CF17EC14903

This is a 1973 BBC/20th Century Fox/ABC production, created by Dr. Who's Terrance Dicks. It only ran for 6 episodes, and didn't take off, mostly because it was just a little too realistic, concentrating on scientific accuracy over B.E.M.s and green bitches and space dogfights, but I thought it'd find some new fans here.
10 posts and 7 images omitted. Click Reply to view.
>>
Thomas Henderson - Tue, 08 Mar 2016 12:07:57 EST ID:vH3CaGpi No.56117 Ignore Report Quick Reply
This thread is why I refer people to /sagan/ or /nra/ instead of /mtv/ .
>>
Jocelyn Bell - Sun, 13 Mar 2016 13:03:43 EST ID:jMMVdMaT No.56123 Ignore Report Quick Reply
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Race To Mars (Canada, 2007)
https://www.youtube.com/watch?v=6qFhNR4OAtw
https://www.youtube.com/watch?v=S_qglv0AOjE

Narrated by William Shatner.
>>
Jocelyn Bell - Sun, 13 Mar 2016 13:09:46 EST ID:jMMVdMaT No.56124 Ignore Report Quick Reply
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Star Cops (BBC, 1987)
https://www.youtube.com/watch?v=GdHlHTi2cCM&list=PLLPeBK9pNWHSFGxIiSUMQE9E9_I5l-ZL_

Failed British cop show IN SPACE, with some of the hardest SF ever seen.
>>
Jocelyn Bell - Sun, 13 Mar 2016 13:23:18 EST ID:jMMVdMaT No.56125 Ignore Report Quick Reply
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Starcom: The U.S. Space Force (1987)
https://www.youtube.com/watch?v=XsNkW0S9c-w&list=PLnRjtBU0WOyb66M9pG_8wZkHjYIUoS5to

Kind of like if G.I. Joe hired consultants from N.A.S.A..
>>
Russel Hulse - Tue, 22 Mar 2016 17:15:13 EST ID:AonVP/Hg No.56136 Ignore Report Quick Reply
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>>56066
duuuude, found a torrent of the manga and it kicks ass, highly recommended
thanks a lot!


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