Re: Spaceships and astronomy
Originally Posted by SultanOfSwing
(Post 12329390)
One of them should have been increase, yeah. Doesn't matter which though :D
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Re: Spaceships and astronomy
Originally Posted by Bahtatboy
(Post 12329392)
Just to make sure I'd got my head round it! It's a bit like working for a company, then: some things which have have a higher (bigger number) classification than others are, in fact, considerably dimmer. My boss, for example. And now that I can spell logarithmic, I'll say that is applies on a logarithmic scale, too. :lol:
But yes, logarithms all round. |
Re: Spaceships and astronomy
Originally Posted by SultanOfSwing
(Post 12329396)
I knew what I was trying to say in my head (I meant a decrease in the actual apparent magnitude, rather than the value) but I expressed it horribly.
But yes, logarithms all round. |
Re: Spaceships and astronomy
Originally Posted by Bahtatboy
(Post 12329410)
Lens apertures...
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Re: Spaceships and astronomy
Good program on BBC 2 called "Search for a New Earth" on the topic of Proxima B. They have graphic of what the miniature light-sail spacecraft might look like, and some guy in CA making prototypes.
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Re: Spaceships and astronomy
Discuss the Fermi paradox.
:popcorn: |
Re: Spaceships and astronomy
Originally Posted by Pulaski
(Post 12342008)
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Re: Spaceships and astronomy
Originally Posted by Pulaski
(Post 12342008)
Personally, I like to think the universe is teeming with life, and due to the incomprehensible distances between us, we just haven't found each other yet. Plus, a theoretical interstellar civilization may not have visited Earth for the simple reason that they just don't know we're here, or we're just not interesting enough for them to actually stop and say hello. |
Re: Spaceships and astronomy
Originally Posted by SultanOfSwing
(Post 12342450)
Can't watch the video yet, but I'm vaguely familiar with the concept. It's a tricky one, isn't it? It's equally possible that we are, in fact, the most advanced form of life in the universe (in which case, the universe is ****ed) than it is that there are far more advanced civilzations than ours.
Personally, I like to think the universe is teeming with life, and due to the incomprehensible distances between us, we just haven't found each other yet. Plus, a theoretical interstellar civilization may not have visited Earth for the simple reason that they just don't know we're here, or we're just not interesting enough for them to actually stop and say hello. |
Re: Spaceships and astronomy
Originally Posted by Shard
(Post 12342462)
I'm going with your final reason. We're just ants.
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Re: Spaceships and astronomy
Reminds me of a Douglas Adams quote:
https://sites.google.com/site/h2g2th...Index/i/540914 There are many horrible things that can happen to young planets, such as getting destroyed to make way for a hyperspace bypass. There was one inhabited planet in the seventh dimension that got used as a ball in a game of intergalactic bar billiards. It got potted straight into a black hole, killing ten billion people. It only scored thirty points. |
Re: Spaceships and astronomy
So you think you're a big deal?
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Re: Spaceships and astronomy
Originally Posted by Pulaski
(Post 12357472)
So you think you're a big deal? https://youtu.be/mcBV-cXVWFw
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Re: Spaceships and astronomy
Originally Posted by Pulaski
(Post 12357472)
So you think you're a big deal? https://youtu.be/mcBV-cXVWFw
Numa muma guy, long time no see. But WTF was he doing in this video. Wouldn't agree that the UDF photo is the "single most important photo taken humanity" though it is impressive. Did the video help comprehending 78 billion light years? Not really. I don't think we can comprehend that scale. Sometimes you wonder if the science has actually got it right? I accept that the math and physics is all internally consistent, but maybe it doesn't in fact exist. Or maybe it's just a simulation. |
Re: Spaceships and astronomy
Originally Posted by Shard
(Post 12357773)
..... Did the video help comprehending 78 billion light years? Not really. I don't think we can comprehend that scale. ....
Somewhere in those facts I believe there are some earth-shaking revelations waiting to be discovered. |
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