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If truth is constant it sure has taken us a long while to find any example of this. Most ideas/theories/things seem to move over time.
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'77 Carrera 3.0 04 Subaru Outback (surfboards don't fit in 911's) "Stay happy and you'll be perfectly fine." - Jack Norris |
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Scientists have a different meaning of the word “theory” than we do in popular use. In popular use, the word theory is more like the scientific word hypothesis.
Here is an excerpt from an article in the Washington post describing what theory means: Quote:
Note that gravity is listed as a theory. Speaking of gravity being “just a theory,” here is a tongue in cheek article. Perhaps Kansas will put stickers in the school books stating “Gravity is just a theory.” Quote:
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Gavin is correct. If it helps to think of "truth" as an immobile, objective final fact, then do so. But in reality, you can find few truths for which there is no convincing argument against. Heck, Einstein even noticed that space and time are not linear. That's hard to get your mental hands around, but it's true. No amount of caffeine can straighten it out. It's curved. The shortest distance between two points is technically NOT a straight line.
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Man of Carbon Fiber (stronger than steel) Mocha 1978 911SC. "Coco" |
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I just read the Angelic Theory of Gravity thing. LOL. And it reminds me of yet another school of thought. Some folks think truth is something we largely make up. If we were inclined to prove the Angels theory, we could. And if we bent society in a particular way, the subatomic particle angle would seem silly. This train of thought is interesting, and has plenty of basis. It suggests that our world is shaped the way it is, not by Someone Else in ways we discover, but by us, in the ways we interpret and observe. Indeed, there are those who suspect that our minds change stuff. It's all pretty interesting, though this last stuff is the stuff of REAL headaches. Pretty hard to think of stuff, and at the same time exclude the stuff that puts that stuff in perspective. It's like thinking about the universe, and leaving out the concept of Time and Space. Indeed, Time and Space are largely nonexistent, except that they are the glue that holds the system together. We have them because without them we';d have nothing.
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Man of Carbon Fiber (stronger than steel) Mocha 1978 911SC. "Coco" |
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Quote:
Last edited by kang; 05-25-2005 at 04:13 PM.. |
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It's funny Alfred because that negative by a negative thing is something I deal with at work (teaching prospective mathematics teachers) and I think you'd find that a quick survey amongst secondary mathematics teachers would also reveal many don't know why this is the case. At least that's what I've found in this part of Australia. I don't see why it's childish - perfectly legitimate question.
Happy to scan an article (or provide references) & some course notes if anyone would like them (hmm, this is getting susupiciously close to work now - may have to send an invoice to Pelican )I think questions like that are really good for seeing how many people have a solid grasp of basic concepts & how many are just following a line of thought or procedure they were taught. Mind you, there's also the case where many may simply have forgotten (or not taken in) what they did back in a maths class when they were 12 or so. Many of us in that boat I'd say. EDIT - I also believe blind faith in anything (including science) can be dangerous. Always good to question things and good scientific practice is based on this principle.
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'77 Carrera 3.0 04 Subaru Outback (surfboards don't fit in 911's) "Stay happy and you'll be perfectly fine." - Jack Norris Last edited by gavinlit; 05-25-2005 at 05:27 PM.. |
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Reminds me of the old applied/pure mathematician distinction.
Applied mathematician - well it probably can be proved but we'll leave that to the pure mathematicians. It's enough for us that it seems to model the system. Pure mathematician - what do you mean what's it used for?? That's for the applied mathematicians out there. We're just playing a game - as long as you can prove it's true that's all that matters. Ok - now, because you've got me started, here's two maths quotes I like: "I had a feeling once about Mathematics - that I saw it all. Depth beyond depth was revealed to me - the Byss and Abyss. I saw - as one might see the transit of Venus or even the Lord Mayor's Show - a quantity pasing through infinity and changing its sign from plus to minus. I saw exactly why it happened and why the tergiversation was inevitable but it was after dinner and I let it go." Sir Winston Spencer Churchill "The mathematician may be compared to a designer of garments, who is utterly oblivious of the creatures whom his garments may fit. To be sure, his art originated in the necessity for clothing such creatures, but this was long ago; to this day a shape will occsionally appear which will fit into the garment as if the garment had been made for it. Then ther is no end of surprise and delight" Dantzig
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To properly handle the mathematics involved in multiplying and dividing negative numbers you need a two dimensional vector system that is made up of of a real and imaginary component.
The reason this second axis is called imaginary is due to the fact that it was created solely for the sake of multiplying and dividing negative numbers. If you desire to learn more about the subject here is a good place to start. Any advanced engineer would be lost or incompetent without a thorough understanding of complex numbers (i.e. i^2 = -1). http://www.cs.bham.ac.uk/~ibs/quantum/complex.pdf |
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Check out this link for a different look at complex numbers (anyone have to use those 'Betty and Jim' arithmetic books at school when they were younger? UUgh.
http://mathforum.org/johnandbetty/
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'77 Carrera 3.0 04 Subaru Outback (surfboards don't fit in 911's) "Stay happy and you'll be perfectly fine." - Jack Norris |
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Quote:
to illustrate my point
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----------------------------------------------------------- The fear of God is the begining of wisdom <>< NotJustPorsche Subscribe: notjustporsche-subscribe@yahoogroups.com |
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Quote:
I assume you apply this same test to your dentist? Because surely he's not qualified to do a root canal if he can't explain why mutliplying two negative numbers yields a positive number. Mike
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Mike 1976 Euro 911 3.2 w/10.3 compression & SSIs 22/29 torsions, 22/22 adjustable sways, Carrera brakes |
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If anyone is in Christ, he is a new creation; the old one has gone, the new has come!
-2 Corinthians 5:17
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David 1970 914/6 RustoMod 2015 Mercedes E400 |
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Too big to fail
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Here I sit all broken hearted...
-Stall:6
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"You go to the track with the Porsche you have, not the Porsche you wish you had." '03 E46 M3 '57 356A Various VWs |
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I'm a Country Member
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Quote:
Who said it, I cant remember. God is an imaginary friend for grown ups.
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Stuart War crimes will be prosecuted. War criminals will be punished. And it will be no defense to say, 'I was just following orders.' George W. Bush |
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I'm a Country Member
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Quote:
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Stuart War crimes will be prosecuted. War criminals will be punished. And it will be no defense to say, 'I was just following orders.' George W. Bush |
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I find that following the Bible has given me an inner peace that I didn't have before. That works for me. If indeed there is nothing after I die, than I'll have at lease had that peace in my last years. If the Bible is right, then I'll receive my reward. No loss there.
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David 1970 914/6 RustoMod 2015 Mercedes E400 |
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Too big to fail
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So xtianity is kinda like a protection racket...
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"You go to the track with the Porsche you have, not the Porsche you wish you had." '03 E46 M3 '57 356A Various VWs |
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Quote:
Mike
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Mike 1976 Euro 911 3.2 w/10.3 compression & SSIs 22/29 torsions, 22/22 adjustable sways, Carrera brakes |
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Why not just let like minded people converse instead of telling them they are wrong?
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David 1970 914/6 RustoMod 2015 Mercedes E400 |
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The first few posts in this thread were poking fun at some of the more ridiculous quotes from the bible. Is that the "like minded" group you're aligning with?
Unfortunately, the "like minded" people you speak of are doing more than simply conversing among themselves. They are trying to force their beliefs on others (such as demanding "equal time" for teaching creationism in schools). I admit that I am guilty of not sitting still and allowing that to happen quietly. Mike
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Mike 1976 Euro 911 3.2 w/10.3 compression & SSIs 22/29 torsions, 22/22 adjustable sways, Carrera brakes |
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