physics question

[phixion]

ive been pondering over ockhams razor(not sure about the spelling). as far as i understand it (let me know if im wrong) it has something to do with the simplest and most complete answer is almost always the correct one. but then when i ask someone why it is when you speed up time slows down, the answer they give is ockhams razor. i dont get the connection. maybe a synapse should be firing and it isnt, but i dont get it.

also while im at it, why is it that your mass also increases as you speed up?

and last one i promise, but why do the magnetism of the poles switch between positive and negative?

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[badorties]

Occam's Razor (http://pespmc1.vub.ac.be/OCCAMRAZ.html)


The principle states that one should not make more assumptions than the minimum needed.


Occam's Razor (also Ockham's Razor or any of several other spellings), is a principle attributed to the 14th century English logician and Franciscan friar, William of Ockham that forms the basis of methodological reductionism. (http://en.wikipedia.org/wiki/Occam's_Razor)


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This message was edited by badorties on 7-5-04 @ 10:20 PM

[phixion]

wow im far too high to read that right now but thanks for the effort

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"Everybody wanna be like Mike but Mike wanna be like L"
Monsterone, many much thanks.

[walking joint]

wow im far too high to read that right now


that's what i thought when i read your post. not sure why i came back to check the answer. but again i won't read it.

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[sr71blackbird]

Here's some clarification on this puzzling question.. (http://www.worldvisions.ca/~apenwarr/useless/11/light.html)

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[furie]

stop watching Contact. it was a bad movie.


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[JPMNICK]

I have studied classical theoretical physics as well as quantum physics.

Very rarely will you see a physcis text book even come close to mentioning the Razor when trying to describe the theory you are asking about.

The reason time APPEARS to slow down is that time is a relative thing. One "year" on earth is not the same as one "year" (year meaning one trip around our sun). To someone if someone left earth right now traveling the speed of light and was gone for one year his time. when he returned back to earth, it would be thousands of years later. the reason is that time is realitive. Einstein theorized this in the early 1900's and it has been proven on speace flights. When the astronuts come home, the watches they have synced are a few seconds off.

This has also been observed in rapid decaying particles. When moving slowly, the break down in certain fixed time. When moving very fast, tje ;ast longer before decaying.

It has nothing to do with them living longer, just our perspective. We observe a slowing of time for the fast movers. They still decay in one millionth of a second, but it would seem to strecth out for us.

Research "clock paradox" very cool stuff. I am to lazy to google now.

E=MC^2 or E/C^2 = M

Therefore Mass is equal to energy divided by the speed of light squared. M = mass gain with motion. Very rapid motion, which means a high value of E (Kinetic Energy), produces only a very small increase in mass.

MAss will increase as you get closer to the speed of light, but it would take a HUGE amount of energy. More than we can ever come up with. The reason light can move at this speed is because it is basically nothing. ANything with mass requires so much energy, it's only in theory we can push it to these speeds. Or, if we do, it has to be one particle at a time.

No one really knows why the poles flip. It has happened a bunch of times in history. Theory think it has something to do with the molten iron inside the earht core *

*I am not to well versed in this part of physics. Sorry

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[Mike Teacher]

but then when i ask someone why it is when you speed up time slows down, the answer they give is ockhams razor. i dont get the connection.


there isnt any.

Example of Occam's Razor:

You go to sleep at night, you wake up and theres snow on the ground.

There are infinite possibilities:

-Someone came with truckloads of snow and placed it around your house...

-Someone with a lot of white spray paint did up your whole place...

-It snowed...

-The day after tomorrow Scenario happened and its -80 out too...

Occam's razor says the one that makes the least and smallest 'leaps of faith' might, repeat, Might, be the most likely outcome.


also while im at it, why is it that your mass also increases as you speed up?


No one, repeat no one, has any idea as to Why.

We can observe nature and see how this Fickle Mistress behaves, but as to Why she chooses this? No one knows. The Universe is the way it is.

One question pondered: Why does the Universe bother to exist in the first place? Why is there something, as opposed to nothing?

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[Melrapuo]

'Why is it that you get "a penny for your thoughts" but you have to "put your two cents in"?

Somebody's making a penny...'

Thank the Universe for Steven Wright.

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[sr71blackbird]

Whats really amazing is that light, which is what we are using to measure this, is effected by gravity (can be deviated from its course when that course is close to that gravitaional field). So light has the unique distiction of acting as both a wave AND a particle at the same time.

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[Mike Teacher]

Well its pretty much everything, not just light, is affected by said gravity. The mass, the stuff of an object, again, no one knows Why, but it bends the space time fabric. So lights not being deviated so much as Everything is. To the photons, theyre just going along their straight path, but the path has been curved by the prescense of this mass.

Theorized by Einstein; they proved it during a total eclipse of the sunearly on in the century; stars that should have been directly behind the sun were visible; Space-Time, and as a consequnce, light, and anything else that would have ventured the path, was deviated.

Oh,

and I forgot that Occkams Razor is the Classic example of how the Legal System [Arienette? Anyone Profs speak of this?] deals with what is called circumstantial evidence.

You have a murder scene; some suspects, weapons, now were talking a Gazillion Scenarios possible.

But What REALLY Happened, in Time, during that Murder, which event, and at what time, and by whom?

They have testimony that might be Completely different. Expert witnesses who, each, swear their position is correct, and can back it up. You saw it with OJ. They were constantly dealing with Occam's Razor: Which of these scenarios makes the fewest Leaps of Faith? Which stands up to logic and science best?

Things get very interesting here; because the Jury has to deal with this Circumstantial Evidence; 12 Angry Men is Perfect; they are each dealing with evidence and testimonies, all imperfect, and they have to slice through the bullshit, and decide, and sometimes part of it is on the faith of the testimonies and what the experts said about the evidence, they have to Decide What Indeed Happened; and that, is often impossible.

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[Yerdaddy]

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Fuck it from behind.

[Mike Teacher]

It's...

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[furie]

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[Tall_James]

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[nickeye]

Regarding why Ockham's Razor is used to explain why time is relative, I've read random crap that may shine light; perhaps someone can help put the pieces together:

Ockham's Razor is usually used when dealing with the uncertainty principle. The uncertainty principle states that, because you can't observe a particle without somehow changing its position or its speed (to observe requires light, and even the smallest amount of light is still one quantum - enough to disturb the particle), you can never have an accurate measure of these two properties. If the position and velocity are uncertain, there's not much more you can do; it's a question mark. Unless you employ Ockham's Razor. Basically, don't try to pin one position and speed to something you can't even look at without screwing it up. Instead, decide what the possible positions and speeds are, and now you can deal with your particle as a combination of probabilities. Quantum mechanics.

"A Brief History of Time" has readable informaton about this, and probably ties it back to time being relative, but that's all I can remember. It's possible that I never finished it. Sorry.

And now for something completely different...

[Yerdaddy]

http://www.mwscomp.com/movies/mol/jpgs/v-galaxy.jpg
Just remember that you're standing on a planet that's evolving
And revolving at 900 miles an hour,
That's orbiting at 19 miles a second, so it's reckoned,
A sun that is the source of all our power.
The sun and you and me and all the stars that we can see,
Are moving at a million miles a day
In an outer spiral arm, at 40,000 miles an hour,
Of the galaxy we call the Milky Way.
http://www.mwscomp.com/movies/mol/jpgs/v-space.jpg
Our galaxy itself contains 100 billion stars
It's 100,000 light years side to side.
It bulges in the middle, 16,000 light years thick
But out by us its just 3,000 light years wide
We're 30,000 light years from galactic central point,
We go round every 200 million years
And our galaxy is only one of millions of billions
In this amazing and expanding Universe.

The Universe itself keeps on expanding and expanding
In all of the directions it can whizz
As fast as it can go, at the speed of light you know,
12 million miles a minute, and that's the fastest speed there
is.
So remember when you're feeling very small and insecure
How amazingly unlikely is your birth
And pray that there's intelligent life somewhere up in space
Because there' bugger all down here on earth.
http://www.mwscomp.com/movies/mol/jpgs/v-fridge.jpg

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Fuck it from behind.

[nickeye]

In physics, well, we talk about physics... properties of physics.

[Mike Teacher]

Can we get back to:

"How Not To Be Seen"

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