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Something interesting Cassini discovered



 
 
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  #1  
Old October 24th 12, 07:45 AM posted to sci.astro.amateur
RichA[_1_]
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Posts: 553
Default Something interesting Cassini discovered

That the decay rates of radioactive elements...are different outside
the Earth-Sun distance. How's that for shocking? They took
measurements from the Cassini RTG. Be interesting if they could get
something from the new Mars rover.

  #2  
Old October 24th 12, 03:07 PM posted to sci.astro.amateur
Chris L Peterson
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Posts: 10,007
Default Something interesting Cassini discovered

On Tue, 23 Oct 2012 23:45:08 -0700 (PDT), RichA
wrote:

That the decay rates of radioactive elements...are different outside
the Earth-Sun distance. How's that for shocking? They took
measurements from the Cassini RTG. Be interesting if they could get
something from the new Mars rover.


Where are you getting this? Back in 2008 some measurements suggested a
variation in nuclear decay rates with distance from the Sun, as seen
here on Earth. People looked at Cassini's RTG for support, and the
Cassini data largely debunked the association between decay rates and
distance from the Sun. The variation seen on Earth remains unexplained
(I think), but is generally ascribed to either a seasonal
instrumentation effect or to a subtlety of solar neutrino flux (which
could modify the weak force).

Is there some new report from Cassini?
  #3  
Old October 28th 12, 07:42 PM posted to sci.astro.amateur
RichA[_1_]
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Posts: 553
Default Something interesting Cassini discovered

On Oct 24, 9:07*am, Chris L Peterson wrote:
On Tue, 23 Oct 2012 23:45:08 -0700 (PDT), RichA
wrote:

That the decay rates of radioactive elements...are different outside
the Earth-Sun distance. *How's that for shocking? *They took
measurements from the Cassini RTG. *Be interesting if they could get
something from the new Mars rover.


Where are you getting this? Back in 2008 some measurements suggested a
variation in nuclear decay rates with distance from the Sun, as seen
here on Earth. People looked at Cassini's RTG for support, and the
Cassini data largely debunked the association between decay rates and
distance from the Sun. The variation seen on Earth remains unexplained
(I think), but is generally ascribed to either a seasonal
instrumentation effect or to a subtlety of solar neutrino flux (which
could modify the weak force).

Is there some new report from Cassini?


No, I caught it on television. But if it's been debunked, ah well.
 




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