The Clock of the Long Now [Edit 11/16: RIP, Earthist]

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SquidInk
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Post by SquidInk » 07-30-2012 10:54 PM

http://blog.longnow.org/
You may dream of freaky new physics, but sometimes freaky old physics is all you need. (New York Times)

Slava G. Turyshev, an expert on gravity at NASA’s Jet Propulsion Laboratory, recently proved that the tried and true theories of Einsteinian physics are as powerful as ever – and he used technology from the 01970s to do it.

In 02004, Turyshev began working on a conundrum that had confused physicists since the early 01980s: Pioneer 10 and 11, two space probes gradually making their way to the outer reaches of the solar system, were slowing down at a higher rate than had been expected. At first, scientists dismissed the observation as the inconsequential effect of propellant left over in the probes’ fuel lines. But when the phenomenon persisted well into the nineties, the lack of a good explanation became a problem. Could it be that Einstein’s theory of General Relativity was off? Were the Pioneer probes perhaps showing us that gravity works differently when you’re measuring distances of a cosmic scale?

Turyshev decided to investigate, but ran into a problem: the last time either of the Pioneers had communicated with Earth was in 2003. Without any new data to rely on, Turyshev undertook what he calls a bit of “space archaeology:”

At the time these two Pioneers were launched [in the early 1970s], data were still being stored on punch cards. But Turyshev and colleagues were able to copy digitized files from the computer of JPL navigators who have helped steer the Pioneer spacecraft since the 1970s. They also found over a dozen of boxes of magnetic tapes stored under a staircase at JPL and received files from the National Space Science Data Center at NASA Goddard Space Flight Center, Greenbelt, Md., and worked with NASA Ames Research Center, Moffett Field, Calif., to save some of their boxes of magnetic optical tapes. He collected more than 43 gigabytes of data, which may not seem like a lot now, but is quite a lot of data for the 1970s. He also managed to save a vintage tape machine that was about to be discarded, so he could play the magnetic tapes. (jpl.nasa.gov)

The vintage tape machine allowed Turyshev to read the old data; with help from a software programmer, he was also able to clean up and digitize it all for future safekeeping. And after several years of analysis, Turyshev was able to show that it might not quite be time for a new theory of gravity after all. The observed effect, he argues, has to do with the specific ways in which the Pioneers were built. The heat put out by the probes’ electrical systems radiate out in one particular direction – the direction of travel. This radiation pushes up against the forward momentum of the probes, thereby slowing them down ever so slightly.

“The effect is something like when you’re driving a car and the photons from your headlights are pushing you backward. It is very subtle.”
Wow... why would the heat radiate in the direction of travel? That seems counter-intuitive to me. In fact, if the heat energy is only moving in the direction of travel, is it actually 'radiating' at all?
Last edited by SquidInk on 07-31-2012 12:10 AM, edited 1 time in total.
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Post by SquidInk » 01-31-2014 02:20 PM

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Re: The Clock of the Long Now [Edit 11/16: RIP, Earthist]

Post by SquidInk » 11-03-2016 10:10 AM

.

Earthist... keep us in the loop, ok? You are a great friend to me, and you will be missed on the FF.

... RIP ...

or, more appropriately, explore in peace.
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Re: The Clock of the Long Now [Edit 11/16: RIP, Earthist]

Post by Riddick » 11-03-2016 02:36 PM

SquidInk wrote:.

Earthist... keep us in the loop, ok? You are a great friend to me, and you will be missed on the FF.

... RIP ...

or, more appropriately, explore in peace.
Yes, Earthist, explore in peace.... wherever thou existist
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Re: The Clock of the Long Now [Edit 11/16: RIP, Earthist]

Post by Doka » 11-03-2016 08:00 PM

So sorry for your loss Squid, actually for all, who "want to know". He /she had a wonderful gift of explaining something, that we here stuck in the 3rd dimension can almost wrap our minds around.

We Earthlings need "Time" As our minds are not equipt to handle other "Timeless Dimensions" Our current string theory suggests maybe 11 dimensions. Probably more .

That is also why our scientists insist on the "Expanding Universe Theory" , it is not expanding, the mistake is made by the use of "Time", it is timeless, it is infinite, no Alpha no Omega. But humans would go insane with this concept, as we are obsessed with beginnings and endings. All the equations and theories would make a huge noise going down the toilet, and they would as, we all would be without "Time".

In "time" we will all know. :)
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Re: The Clock of the Long Now [Edit 11/16: RIP, Earthist]

Post by kbot » 11-04-2016 07:13 AM

Doka wrote:We Earthlings need "Time" As our minds are not equipt to handle other "Timeless Dimensions" Our current string theory suggests maybe 11 dimensions. Probably more .

That is also why our scientists insist on the "Expanding Universe Theory" , it is not expanding, the mistake is made by the use of "Time", it is timeless, it is infinite, no Alpha no Omega. But humans would go insane with this concept, as we are obsessed with beginnings and endings. All the equations and theories would make a huge noise going down the toilet, and they would as, we all would be without "Time".

In "time" we will all know. :)
Sounds Biblical Doka........... And that was written ages ago now, pre-"science"
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Re: The Clock of the Long Now [Edit 11/16: RIP, Earthist]

Post by Doka » 11-05-2016 12:25 PM

kbot wrote:
Doka wrote:We Earthlings need "Time" As our minds are not equipt to handle other "Timeless Dimensions" Our current string theory suggests maybe 11 dimensions. Probably more .

That is also why our scientists insist on the "Expanding Universe Theory" , it is not expanding, the mistake is made by the use of "Time", it is timeless, it is infinite, no Alpha no Omega. But humans would go insane with this concept, as we are obsessed with beginnings and endings. All the equations and theories would make a huge noise going down the toilet, and they would as, we all would be without "Time".

In "time" we will all know. :)
Sounds Biblical Doka........... And that was written ages ago now, pre-"science"

Biblical? Pre-Science? Just what does that mean ? That concepts and theory Must abide by someones religious beliefs ? If that where truly the case we really would still be working on discovering "the Wheel" , LOL. If you check current archaeological digs, they are finding the remains of far advanced civilizations dated as far back as 200,000 years Before there was even a hint of our current , big 3 religions, Judaism, Christianity, and Islam. Not a "mainstream" news item for sure , tends to upset the coffers and power over the people. In my opinion, Religions and Insurance Companies have a great deal in common. You shop or inherit your beliefs, then you pay and then you try to to obey the rules set by that particular church for something that is already yours, a way to "Heaven" , and being a "Spiritual Being" which we are any way. A person that desires to do good, will do good, belonging to a church or the mickey mouse club will not change the concept "within".

I have no desire to rip away any one's religious bent, that comes from with-in . But if your own beliefs can-not be self-questioned are they "beliefs" or "chains"?

Pre-Science? Well I suppose we could be still suffering from that, if one wants believe we came from a monkey or a mudpie. :shock:
KARMA RULES

Those Who Can Make You Believe Absurdities, Can Make You Commit Atrocities': Voltaire

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