The Zeno effect

[bogeyman]

My objection to Zeno was that he owned slaves and therefore an oppressor of the working man.

So, in other words, you're just a wind-up merchant.

You have no cogent arguments on any topic - you just aggravate and provoke responses.

You know nothing about physics (or anything else probably) and post on this forum with the intention of pissing people off that might know a bit more that you do (which would be almost everyone I assume).

Does the phrase 'bitter failure' come to mind?

BM

[bogeyman]

Good grief, Bogeyman, has it taken you this long to realise it?

Yea - Soz!

Not on the Giant Lizaard Mailing List.

[hyperD]

I might add that my cat is descended from Schroedinger's cat (67% probability).

Keep your eye's shut then just to make sure!

[bogeyman]

Keep your eye's shut then just to make sure!

Well, we never let him out of his box while we're looking.

[hyperD]

What did you do to the cat? It looks half dead?

[Jakes Daddy]

Whacky physics

OK, whilst we are on the subject of whacky physics, would someone please explain this to me (or support my argument)

Someone recently tried to convince me that 'time' is relative to your altitude. He was suggesting that if you had 2 clocks sat next to each other that had been perfectly in sync for lets say a year, it would be reasonable to assume that they would continue to be perfectly sync'ed (assuming batteries or whatever never ran out).
I'm in agreement so far
He then went on to say that if you sent one of them up to a higher altitude for a period of time (lets say a mile for another year), when it came back down after that year it would read a different time to the other one (albeit a minor difference). (cant remember whether he said it would be faster or slower)

What a load of bollox
I can imagine that might be true if the clocks were mechanical as I would imagine that the magnetic force of the earth would be different at different altitudes and would affect the mechanics.
But he said, no, it would still be true if they were digital clocks - what a load of horse poop !
He said it was all to do with atomic clocks ???

Time is a man defined period of errr, well ... time. How can altitude affect it ?

Please, someone, explain it to me, or tell me he is some kind of windup merchant (which he is)

[hyperD]

According to Einstein's theory of gravity and space-time - called "general relativity" - clocks in strong gravity tick slower than clocks in weak gravity. Because gravity is weaker on the ISS than at Earth's surface, PARCS should accumulate an extra second every 10,000 years compared to clocks ticking on the planet below. PARCS won't be there that long, but the clock is so stable that it will reveal this effect in less than one year.

Clocks on GPS satellites experience this relativistic phenomenon, too, and that onboard systems must correct for it.

http://www.firstscience.com/site/articles/clock.asp

[sasguru]

OK, whilst we are on the subject of whacky physics, would someone please explain this to me (or support my argument)

Someone recently tried to convince me that 'time' is relative to your altitude. He was suggesting that if you had 2 clocks sat next to each other that had been perfectly in sync for lets say a year, it would be reasonable to assume that they would continue to be perfectly sync'ed (assuming batteries or whatever never ran out).
I'm in agreement so far
He then went on to say that if you sent one of them up to a higher altitude for a period of time (lets say a mile for another year), when it came back down after that year it would read a different time to the other one (albeit a minor difference). (cant remember whether he said it would be faster or slower)

What a load of bollox
I can imagine that might be true if the clocks were mechanical as I would imagine that the magnetic force of the earth would be different at different altitudes and would affect the mechanics.
But he said, no, it would still be true if they were digital clocks - what a load of horse poop !
He said it was all to do with atomic clocks ???

Time is a man defined period of errr, well ... time. How can altitude affect it ?

Please, someone, explain it to me, or tell me he is some kind of windup merchant (which he is)

I think your friend was misquoting the famous story that a clock on a plane speeding round the world would have a different time value than one which wasn't.

[bogeyman]

OK, whilst we are on the subject of whacky physics, would someone please explain this to me (or support my argument)

Someone recently tried to convince me that 'time' is relative to your altitude. He was suggesting that if you had 2 clocks sat next to each other that had been perfectly in sync for lets say a year, it would be reasonable to assume that they would continue to be perfectly sync'ed (assuming batteries or whatever never ran out).
I'm in agreement so far
He then went on to say that if you sent one of them up to a higher altitude for a period of time (lets say a mile for another year), when it came back down after that year it would read a different time to the other one (albeit a minor difference). (cant remember whether he said it would be faster or slower)

What a load of bollox
I can imagine that might be true if the clocks were mechanical as I would imagine that the magnetic force of the earth would be different at different altitudes and would affect the mechanics.
But he said, no, it would still be true if they were digital clocks - what a load of horse poop !
He said it was all to do with atomic clocks ???

Time is a man defined period of errr, well ... time. How can altitude affect it ?

Please, someone, explain it to me, or tell me he is some kind of windup merchant (which he is)

It's not bollux - it is correct.

A clock at a highter "altitude" would run at a different time to one at "ground-level".

This is nothing to do with air-pressure or mechanical effects, but with gravity.


Read up on general relativity. The closer you are to a large gravitational body, the slower your time runs (there is no 'universal time' - everyone has their own 'personal' time depending on how fast they are moving in relation to something else).

[hyperD]

The closer you are to a large gravitational body, the slower your time runs

That's why threaded's posts take so long to read.