Theory of relativity might become law of relativity.

ahenkel

Diamond Member
Jan 11, 2009
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http://www.lanewsmonitor.com/news/Einsteins-Theory-of-Relativity-Gets-Proof-1285419163/

Albert Einstein will never be forgotten nor will ever be his theory of relativity. There have been unlimited speculations and studies on this theory and it has been implemented in various fields of life time and time again. Of the many prophecies made based on assumptions of the theory of relativity, none are as intriguing as the one made by the great man himself.


He had said that if a pair of twin siblings were observed then it would make for a very important observation. If one of them went on a trip via a rocket around the universe he would return much younger than his sibling who stayed at home.

And now scientists have taken that observation one step farther. They have thrown the requirement of the rocket out the window. They now say that even if the traveler came back from a grocery shopping visit via a car driving at rather low speeds, then also he would be younger than the one at home. Only problem is that the difference of age would be just too darn tiny to notice.

On the contrary, a twin pair staying at very high altitudes are subject to the exact opposite of this phenomenon. it is just a theory of general relativity that time travels quicker on high altitudes due to the absence of gravity. And even that has been taken a step further as scientists now claim the same to hold true at any altitude above sea level.

These experiments that led to such conclusions were undertaken under the watchful eye of James Chin Wen Chou. Chou is a researcher of postdoctoral merit at the Colorado Institute of National Standards & Technology. His explanation was simple enough. He said relativity was part of our daily lives and hence it resonates with us.


Pretty interesting. I like how science works sometimes not in giant grandiose leaps but in almost imperceptible tics
 

dighn

Lifer
Aug 12, 2001
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And now scientists have taken that observation one step farther. They have thrown the requirement of the rocket out the window. They now say that even if the traveler came back from a grocery shopping visit via a car driving at rather low speeds, then also he would be younger than the one at home. Only problem is that the difference of age would be just too darn tiny to notice.

That's not exactly new information.
 

ElFenix

Elite Member
Super Moderator
Mar 20, 2000
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they have to make relativity adjustments to the GPS clocks. nothing new at all.
 

xSauronx

Lifer
Jul 14, 2000
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indeed, this is a well-established fact at this point in time

i do find it interesting that we can measure the minute difference between such a minor elevation change, but its practically pointless considering the GPS example mentioned above already
 

DrPizza

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Mar 5, 2001
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they have to make relativity adjustments to the GPS clocks. nothing new at all.

The way they do that is the clocks in the satellites don't run at the same "speed" intentionally. Rather than making mathematical calculations to adjust the times continuously, the timers run at a different rate when at rest on earth, so that when they're running in space, the effects of relativity result in the clocks "60 seconds" in space are identical to 60 seconds on earth.

I read about these experiments earlier this week. It's absolutely amazing that they can measure the difference in time between two clocks that are separated by only 1 foot vertically, and to the level of precision of the measurements, they're fully in agreement with Einstein's theory.
 

Kadarin

Lifer
Nov 23, 2001
44,296
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Pah! It's just a theory... The only reason why anyone is older than anyone else is because Jesus willed it so. And if you don't believe me, well, you just need to get on your knees and pray harder.
 

lxskllr

No Lifer
Nov 30, 2004
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I read about these experiments earlier this week. It's absolutely amazing that they can measure the difference in time between two clocks that are separated by only 1 foot vertically, and to the level of precision of the measurements, they're fully in agreement with Einstein's theory.

I think that's the real point of the story. We can build clocks with the precision/accuracy to measure the time differences.
 

LordMorpheus

Diamond Member
Aug 14, 2002
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It's also well known the general relativity does a poor job (i.e. dead wrong) describing the universe in very small regions. Just as quantum mechanics does a poor job describing the universe over large distances.

Nothing we know is a law, everything we know is a theory that fits better than other theories with our observations of the universe.
 

dighn

Lifer
Aug 12, 2001
22,820
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I think that's the real point of the story. We can build clocks with the precision/accuracy to measure the time differences.

Too bad the article barely makes any mention of these experiments and spends most of the time reiterating well known information.
 

sandorski

No Lifer
Oct 10, 1999
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People complain the Baby Boomers live too long. Just wait until they see how long the Nerds living in their Basements Live!!!
 

ElFenix

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Mar 20, 2000
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I read about these experiments earlier this week. It's absolutely amazing that they can measure the difference in time between two clocks that are separated by only 1 foot vertically, and to the level of precision of the measurements, they're fully in agreement with Einstein's theory.

they're that accurate now eh? i remember reading about being able to tell the difference between the first and third floor of an MIT or harvard science building
 

DrPizza

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Yes, insane precision & accuracy. Within one second in several billion years.

Also, I bothered to take a look at the article in the OP. What a crappy article. I can't remember what the original source is for the story though. (I printed it out & put it on my bulletin board for my physics students.) If I recall correctly, the clocks are based on the oscillation of an electron between two different orbitals in a pair of Aluminum 28 + ions.
 
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PowerEngineer

Diamond Member
Oct 22, 2001
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<facepalm>

What a terribly written article. "prophecies"? Oh Lord...

Absolutely nothing new here; certainly not some sort of extenstion to general relativity as the article seems to suggest. Our ability to verify the predictions made by general relativity in more situations thanks to insanely accurate clocks is the only news here.