ICEINSPACE
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Waxing Gibbous 63.4%
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28-04-2011, 06:35 PM
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Unpredictable
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Join Date: Jul 2010
Location: Australia
Posts: 3,023
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Pioneer Anomaly Solved !
The dreaded Pioneer Anomaly may have finally been explained .. all without mysterious particles or making Einstein wrong ! …
New theory proposed to explain Pioneer probe gravitational anomaly
Quote:
Portuguese physicists might have finally solved the decades old mystery of why the Pioneer probes, launched in the early 70’s, haven’t been decelerating from the Sun’s gravitational pull at the rate expected; it seems it might be something as mundane as adding in the tiny forces that occur when minute traces of heat from the plutonium on board the probes bounce off their receiving dishes, creating a counterforce, which in turn, causes the craft to slow; if ever so slightly.
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Damn ! I was hoping it would be something way more mysterious than that!
.. I wish it had stayed a mystery now. 
Oh well … easy come … easy go ...

I guess we'll have to wait for the ensuing debate/criticism, before it can all be a 'sealed deal', though.
Cheers
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28-04-2011, 06:53 PM
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Waiting for next electron
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Join Date: Mar 2008
Posts: 2,427
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Alex in not going to like this  .
Mark
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28-04-2011, 07:42 PM
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Registered User
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Join Date: Aug 2009
Location: Waitakere Ranges, New Zealand
Posts: 2,260
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Very interesting. I'm not surprised that it might be such a basic reason, actually rather surprised that they apparently hadn't already screened all the possible causes that could originate from the spacecraft itself.
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28-04-2011, 08:31 PM
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Stargazer who Posts
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Join Date: Feb 2011
Location: Liverpool NSW Australia
Posts: 284
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hmmmmm
hmmmmm interesting fact or solution
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30-04-2011, 02:21 PM
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Registered User
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Join Date: Mar 2007
Location: Laura
Posts: 599
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it was always going to be something basic. It's a bit like a magic trick, at first it seems like it really was magic, but if your shown how it was done it's a little disapointing.
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02-05-2011, 10:11 PM
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Registered User
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Join Date: Apr 2010
Location: Sydney, Australia
Posts: 53
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This seems like something Slava Turyshev would have picked up quickly. Personally I will wait around for further confirmation...
A new theory of gravity would be so nice.
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07-05-2011, 02:07 AM
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Grumpy Old Man-Child
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Join Date: Jul 2009
Location: South Gippsland
Posts: 1,768
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I will have a better answer tomorrow, but from my father-in-law's recollection it was actually an Australian physicist who first worked this out.
He also 'proved' (mathematically), that small variances in the shape of the engine nozzles would have exactly the effect seen.
He was a physicist at CSIRO for years and knew the man in question well.
I'm an idiot and can't remember his name.
(The postulating scientist. Not my F.I.L. His name's Chris).
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08-05-2011, 11:49 PM
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No More Infinities
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Join Date: Apr 2008
Location: Townsville
Posts: 9,698
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Quote:
Originally Posted by marki
Alex in not going to like this  .
Mark
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Nah....doubt that. Never stopped before, won't stop him now 
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26-05-2011, 08:10 PM
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Gravity does not Suck
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Join Date: Mar 2005
Location: Tabulam
Posts: 17,003
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This seems more novel than many of the ideas offered to date but I feel they are still clutching at straws ..any straw indeed will do if it will prevent the them having to face the inevitable conclusion than the current science upon gravity is not going to hold up in interstellar space.
This approach is little better than the leaking fuel tank idea of years ago.
Space is sticky due to the greater than observed pressure of energy and stuff seeking to pass thru it will slow because of the interaction... the razor suggests my idea should stand due to its simplicity ....
alex
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27-05-2011, 06:58 PM
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amateur
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Join Date: Jul 2006
Location: Mt Waverley, VIC
Posts: 7,113
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Quote:
Originally Posted by xelasnave
the razor suggests my idea should stand due to its simplicity ....
alex
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Alex, your idea only looks like it is simple at the first glance..
But if/when/ you take a better look at it, it's a monster - the consequences of existence of push-itrons are totally inconsistent with every measurement and observation you can think of. We have been through this couple of years ago...
[this dash in the name of your particle (push-itron) is because of language filter.. Mike.s responsibility  ]
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18-06-2011, 04:26 PM
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Gravity does not Suck
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Join Date: Mar 2005
Location: Tabulam
Posts: 17,003
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Hi Bojan
sorry for delay in reply. One observation in support is the slowing of the pioneer
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18-06-2011, 06:21 PM
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amateur
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Join Date: Jul 2006
Location: Mt Waverley, VIC
Posts: 7,113
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Quote:
Originally Posted by xelasnave
Hi Bojan
sorry for delay in reply. One observation in support is the slowing of the pioneer 
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Alex, this is not the case.
You never explained how and why the Push-itron existence would be the cause of Pioneer speed slowdown
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18-06-2011, 06:59 PM
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Registered User
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Join Date: Mar 2009
Posts: 349
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Alex, would you mind showing me the math behind your idea(s)?
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18-06-2011, 08:08 PM
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Gravity does not Suck
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Join Date: Mar 2005
Location: Tabulam
Posts: 17,003
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18-06-2011, 11:04 PM
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Oh, I See You Are Empty!
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Join Date: Apr 2010
Location: Laramie, WY - United States of America
Posts: 1,555
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Quote:
Originally Posted by Waxing_Gibbous
He was a physicist at CSIRO for years and knew the man in question well.
I'm an idiot and can't remember his name.
(The postulating scientist. Not my F.I.L. His name's Chris).
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I scared my better half when I busted out laughing
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19-06-2011, 06:25 AM
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amateur
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Join Date: Jul 2006
Location: Mt Waverley, VIC
Posts: 7,113
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Quote:
Originally Posted by xelasnave
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Well... let's see it 
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19-06-2011, 06:56 AM
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Registered User
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Join Date: Jun 2007
Posts: 2,926
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Quote:
Originally Posted by xelasnave
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Alex,
What a totally circular argument.
You are trying to "prove" something on the assumption that it already exists.
Regards
Steven
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19-06-2011, 09:25 AM
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Gravity does not Suck
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Join Date: Mar 2005
Location: Tabulam
Posts: 17,003
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Hi Bojan hi Steven
before I do more I ask is there any point.? We have my premise firstly is it a reasonable approach? If such a situation exists will the passing energy interact with matter. If absolutely not the game ends there...if possible the idea then needs data as to the ctual energy present. ..my lack of math is irrelevent if the premise is flawed.
Anyways my original point was simply that this latest idea as to why they slow is still a straw grab andthe anomoly still remains unsolved in my view.
alex
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19-06-2011, 09:30 AM
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Unpredictable
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Join Date: Jul 2010
Location: Australia
Posts: 3,023
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Quote:
Originally Posted by xelasnave
Hi Bojan hi Steven
before I do more I ask is there any point.? We have my premise firstly is it a reasonable approach? If such a situation exists will the passing energy interact with matter. If absolutely not the game ends there...if possible the idea then needs data as to the ctual energy present. ..my lack of math is irrelevent if the premise is flawed.
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I got two words for ya Alex …. "dark matter".

(Just kidding .. I don't think they made the Pioneers primarily from dark matter … but it does go to show that all contingencies should be considered when developing Science-shattering paradigm shifts !  )
Cheers
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19-06-2011, 11:01 AM
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Gravity does not Suck
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Join Date: Mar 2005
Location: Tabulam
Posts: 17,003
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Hi there Craig well I think them slowing due to dark matter is better than leaking fuel or similar. Keep up with your interesting posts. When ever I can get on the net I look to see your lastest posts they are always interesting all stuff I like to read about...even m theory. .but that is like Android atheist reading the bible. .but its all good.
alexy
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