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Author | Topic: Coffee House Musing | |||||||||||||||||||||||||||||||||||||||||||||||
AZPaul3 Member Posts: 8654 From: Phoenix Joined: Member Rating: 6.7
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No debate topic, really, just an observation I think is significant.
In the last 20 years there has been a major shift in the conduct of astronomy. Not just the larger more powerful scopes on both land and in space that have become operational, which provide much deeper clearer views of the cosmos across most all of the EM spectrum, but, more significant is the way they have come operational. Modern viewing on telescopes is digital, not optical. CCDs (charge-coupled devices) and other gizmos convert what the astronomer would have seen in optical to digital data stored in computer databases. The beauty is that these gizmos don’t just blip a signal when they are hit by a photon but, these days, they record the frequency, energy, amplitude, polarity, birth date and social security number of every photon they see. Ok, maybe not those last two. Every major telescope on the planet has gone digital. Gone are the days when you had to request physical time on the scope then travel to the scope to sit in a freezing dome all night taking pretty pictures on emulsion. You can still request time for specific views but, better yet, if an adequate view is already in the database you don’t have to wait. The astronomer then writes code, or more usual they have their grad students write most of it, to extract the data from the database and they code more programs to analyze and display the data and still more code to build simulations using the data. Collaborations are now going on to catalogue all the world’s scope’s databases into a database of databases available on-line. Download the few hundred gigabytes you want and start programming. By scientific requirement specs and by international agreement, with a few exceptions, all the new scopes being built and planned will be required to dump their data eventually into databases available on-line without charge to the world. Astronomer/programmers, amateur/astronomer/programmers, home nutjob/astronomer/programmers, all have access. Vera Rubin, a monster scope being built in Chile, is expected to dump into their database, don’t hold me to this precise number, more than few terabytes of data each day. Even the new Chinese super huge FAST telescope (an Arecibo replacement) will participate in a limited way. Astronomy has become computer programming and data mining. After the math, programming is the most required skill to be an astronomer. If you can program, astronomy is now a stay-at-home cottage industry open to anyone with internet access. Imagine what we are going to find. Edited by AZPaul3, : No reason given.Edited by AZPaul3, : title Eschew obfuscation. Habituate elucidation.
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Tanypteryx Member Posts: 4597 From: Oregon, USA Joined: Member Rating: 9.7
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Adding to everything you listed, the Fermi Gamma-ray Space Telescope in orbit along several others, orbital X-ray observatories, detecting gamma-ray bursts and all sorts of other high energy phenomena. A global network is coordinating observations at a wide range of wavelengths and energies and I think I read that they will also coordinate with the LIGO and Virgo gravitational wave observatories.
All these observatories coordinating to capture rapid transient astronomical events has opened up fertile new areas of research. Later this year the James Webb Space Telescope will be launched and should blow all our minds. It even turns out using those advanced computer analysis of the gravitational wave signal reveals lots of additional fine resolution data from what initially looked like noise around the signal. I am planning to live long enough to see this true golden age of astronomy!What if Eleanor Roosevelt had wings? -- Monty Python One important characteristic of a theory is that is has survived repeated attempts to falsify it. Contrary to your understanding, all available evidence confirms it. --Subbie If evolution is shown to be false, it will be at the hands of things that are true, not made up. --percy The reason that we have the scientific method is because common sense isn't reliable. -- Taq
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Percy Member Posts: 22951 From: New Hampshire Joined: Member Rating: 6.9
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This trend in astronomy is just a minor corollary in what has now become known round the world as the Percy Postulate: eventually all jobs will be programming jobs. Even my coffee cup is programmable and has an app now:
--Percy
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jar Member (Idle past 94 days) Posts: 34140 From: Texas!! Joined:
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Only for a very short time. No need for humans to do simple stuff like programming. Let Watson do it.
My Website: My Website
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Phat Member Posts: 18650 From: Denver,Colorado USA Joined: Member Rating: 4.3
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Sounds suspiciously like a human-centric quantifiable universe...dare I say multiverse. This whole math thing is no replacement for woo.
"A lie can travel half way around the world while the truth is putting on its shoes." ~Mark Twain " *** “…far from science having buried God, not only do the results of science point towards his existence, but the scientific enterprise itself is validated by his existence.”- Dr.John Lennox “The whole war between the atheist and the theist comes down to this: the atheist believes a 'what' created the universe; the theist believes a 'who' created the universe.” “The most difficult subjects can be explained to the most slow-witted man if he has not formed any idea of them already; but the simplest thing cannot be made clear to the most intelligent man if he is firmly persuaded that he knows already, without a shadow of a doubt, what is laid before him.” — Leo Tolstoy, The Kingdom of God is Within You
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Tanypteryx Member Posts: 4597 From: Oregon, USA Joined: Member Rating: 9.7
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?
What if Eleanor Roosevelt had wings? -- Monty Python One important characteristic of a theory is that is has survived repeated attempts to falsify it. Contrary to your understanding, all available evidence confirms it. --Subbie If evolution is shown to be false, it will be at the hands of things that are true, not made up. --percy The reason that we have the scientific method is because common sense isn't reliable. -- Taq
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dwise1 Member Posts: 6077 Joined: Member Rating: 7.2
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And even before CCDs analog astronomy was rarely about looking through the telescope but rather was all about photography.
When it comes to telescopes, why does size matter so much? Telescope size has nothing to do with magnification of the image. So why is getting a bigger telescope such a big deal? It's all about light collection. Most objects we want to view are not visible to the eye because they are far too faint -- and the more distant they are the fainter they are as per the inverse-square law. Very little of their light reaches us. The larger a telescope is, the more light it can collect, including that very little light from those faint objects. But even with the largest telescope possible, the astronomer would still not be able to see most of those objects. Which is why they had to resort to astrophotography, exposing that film for hours at a time to collect enough light from those distant faint objects. Even in everyday life photography has gone digital, so it makes sense that astrophotography would have done the same.
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dwise1 Member Posts: 6077 Joined: Member Rating: 7.2
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Even my coffee cup is programmable and has an app now So you can drink your coffee only if you have a compatible phone? Eg, if you have an iPhone and an Android coffee cup then your phone will refuse to talk to your coffee cup?
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dwise1 Member Posts: 6077 Joined: Member Rating: 7.2
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This whole math thing is no replacement for woo. Rather, woo is sadly a wide spread replacement for actual thought. With math we can analyze what we observe and figure it out. With woo all you can do is either wave your hands a lot or else clamp your hands over your eyes and ears in order to avoid learning anything. For example, Dawkins' WEASEL program producing a specific sentence (eg, Shakespeare's "Methinks it is like a weasel", my MONKEY uses the alphabet in alphabetical order) by randomly selecting letters to string together. Using single-step selection (ie, creationists' misconception of evolution working by having something complex like a modern animal cell just falling together in a single event) that would be virtually impossible (making a million attempts every second it would take about 195 trillion years to have a one-in-a-million chance of success -- nearly 10,000 times longer than the universe's estimated age of 20 billion years). But Dawkins' WEASEL uses cumulative selection using evolutionary processes such are in wide spread use by life itself, in which small random changes are retained and form the starting point for the next small random change. Dawkins wrote it as a simple BASIC program, started the program and went out for lunch. It had generated the target string before he returned from lunch. I didn't believe that, so I tested it (BTW, that's not your beloved woo approach). Not having a program listing for his WEASEL, I wrote my own program using his description as my specification (in a page that collected WEASEL programs, my program was described as being the closest to the original) using a compiled language (first Pascal, later ported to C) instead of a slow interpreted language like BASIC. When I ran my program on an XT clone (Norton Factor 2), it generated the target string (the alphabet in alphabetical order) in less than 30 seconds -- modern PCs run about a thousand times faster or more so the program appears to run instantaneously. I didn't believe that either, so I did the math. It turns out that, while the probability for success for a single small-step attempt is small, when you bundle that with 100 such attempts happening in parallel (just as life itself would do it within a population) then the probability of all of them failing becomes very small -- hence the probability of at least one of them succeeding becomes very high -- and then the probability of all of them failing consistently over many generation becomes vanishingly small -- hence the probability of success within the population becomes a virtual dead certainty. It cannot fail. My page on that is MONKEY, which links to my mathematical analysis of the probabilities involved, MONKEY PROBABILITIES (MPROBS). Both were originally published on CompuServe in 1990."Everybody's got something to hide, except for me and my monkey!" (Lennon and McCartney) Doing the math shows what actually happens. Depending on woo would have you believing a falsehood and would keep you perpetually in the darkness of ignorance. Another example is Kent Hovind's false claim that if the sun were actually as old as science says it is (about 5 billion (109) years old) then that ancient sun would have been so incredibly large and massive that its incredibly greater gravity would have "sucked the earth in". He bases that on the rate at which the sun "burns its fuel" -- that would be the loss of mass from hydrogen fusing into helium, though I suspect that "Dr" (fake PhD bought from a diploma mill) Hovind (self-proclaimed expert on math and science) doesn't understand how the sun "burns its fuel" and thinks that it's through combustion (eg, he explained that crashing the Galileo probe into Jupiter wouldn't turn it into a star because there's not enough oxygen in the Jovian atmosphere to sustain combustion) which doesn't result in any mass loss anyway (according to my high school chemistry). That rate of mass loss, 5 million tons per second, times 5 billion (5×109) years results in a truly astronomical number of tons lost over that period of time. Hovind never reveals that number, but rather lets his audience stew in their love of woo as he waves his hands and feeds them outrageous lies -- in jazz dancing, that use of "jazz hands" is intended to distract the audience from seeing how he's messing up his footwork. He even explicitly forbids his audience from ever doing the math or listening to anybody who has done the math. Why? Because that would dispel the woo and expose his deception. Do the math and find that that rate over that much time would result in a solar mass loss of 7.88923×1023. However, the sun's current mass is about 2500 times greater such that that astronomically large mass loss accounts for a few hundredths of one percent of the sun's total mass. Adding it back in order to arrive at the ancient sun's original mass has virtually no effect on the ancient sun's size or mass. Hovind's hand-waving assessment of the ancient sun "sucking the earth in" is totally false. My page on that, DWise1: Kent Hovind's Solar Mass Loss Claim, presents different versions of Hovind's solar-mass-loss claim and its refutation. Then the rest of the page gets into a lot of fairly simple solar astrophysics in anticipation of objections that creationists might try to raise. BTW, I emailed Hovind for information on this claim, mainly asking what his source was or did he come up with it himself (I have found one other use of this claim from more than a decade before Hovind became active). Not only did he try to avoid discussing his claim, but he also tried twice to pick a fight with me over my AOL screenname, DWise1. That is what happens when one dedicates oneself to woo and against reality. You don't believe me? Just do the math.
ABE: For fun and edification, here is a film about the sun that I watched in elementary school and learned a lot from. It's Dr. Frank Baxter and a writer (played by Eddie Albert whom I didn't know about at the time) interviewing "Our Mr. Sun":
That BS nonsense from Hovind trying twice to pick a fight with me over my screenname, DWise1, led me to include this explanation on my index page:
quote: Edited by dwise1, : to the first paragraph added "With woo all you can do ... "Edited by dwise1, : Added "It cannot fail." Edited by dwise1, : ABE
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Tanypteryx Member Posts: 4597 From: Oregon, USA Joined: Member Rating: 9.7 |
And even before CCDs analog astronomy was rarely about looking through the telescope but rather was all about photography. In 1975 I bought a Questar telescope that was only 3.5 inches in diameter. It was laughingly small but also considered to be one of the best pieces of engineering to be produced in the 20th century. Visible eye observation is a dream with it. I can see the Giant Red spot and the Cassini Division and non-astrological viewing is mind blowing. Astrophotography with film was tricky but still fun and I remember people cooling their film with dry ice, but I can't remember why right now. I think it was in the 80's after the Voyager missions that CCD devices started to become available to the amateur astronomers. The problem with film was always that you had to wait for the film to be developed to see if you got anything. Digital gives you instant feedback on success or failure. In my own case, I was happy to discover that photography through my Questar with a DSLR produces images that are far superior to my film days with far less fussing around.What if Eleanor Roosevelt had wings? -- Monty Python One important characteristic of a theory is that is has survived repeated attempts to falsify it. Contrary to your understanding, all available evidence confirms it. --Subbie If evolution is shown to be false, it will be at the hands of things that are true, not made up. --percy The reason that we have the scientific method is because common sense isn't reliable. -- Taq
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AZPaul3 Member Posts: 8654 From: Phoenix Joined: Member Rating: 6.7 |
This whole math thing is no replacement for woo. Good one, Phat. But, someone's going to think you're serious. Prepare for the rumble. Yes, people, Phat does have a sense of humor.Eschew obfuscation. Habituate elucidation.
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Tanypteryx Member Posts: 4597 From: Oregon, USA Joined: Member Rating: 9.7
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Yes, people, Phat does have a sense of humor. Well, he shouldn't quit his day job!What if Eleanor Roosevelt had wings? -- Monty Python One important characteristic of a theory is that is has survived repeated attempts to falsify it. Contrary to your understanding, all available evidence confirms it. --Subbie If evolution is shown to be false, it will be at the hands of things that are true, not made up. --percy The reason that we have the scientific method is because common sense isn't reliable. -- Taq
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AZPaul3 Member Posts: 8654 From: Phoenix Joined: Member Rating: 6.7 |
All I could think of was that accidental pun and so chose "DWise1" as my screen name. I like my theory of your name better. You were trying to warn people of both the intellect and humor headed their way.Eschew obfuscation. Habituate elucidation.
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Percy Member Posts: 22951 From: New Hampshire Joined: Member Rating: 6.9
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dwise1 writes: So you can drink your coffee only if you have a compatible phone? Eg, if you have an iPhone and an Android coffee cup then your phone will refuse to talk to your coffee cup? Naw, everything's compatible, it's no problem, or at least it wasn't until the coffee cup got snippy after I used it for ramen noodles. Fortunately there are manual overrides, but they're in the Matrix guarded by my toaster which hasn't let me pass since I tried to use it to warm up a fried egg. --Percy
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dwise1 Member Posts: 6077 Joined: Member Rating: 7.2
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... but they're in the Matrix guarded by my toaster which hasn't let me pass since I tried to use it to warm up a fried egg. Wow! You still have a Flying Toaster? Those things were so cool!
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