Re: [Vo]:A reasonable criticism of Arata's temperature measurements?

2008-06-22 Thread Jed Rothwell

Harry Veeder wrote:


Setting aside the detection of He for the time being does Oskar
make a reasonable criticism of Arata's temperature measurements?


Oskar: I wonder if it could be a deuterium effect on the thermocouple?
Hydrogen and deuterium are notorious for dissolving in metals (as they are
supposed to in the sample) . . .


No, this is not reasonable. As you see from the first figure, one of 
the thermocouples is outside of the cell. Not very observant of Oskar.


- Jed



Re: [Vo]:A reasonable criticism of Arata's temperature measurements?

2008-06-22 Thread Harry Veeder
On 22/6/2008 10:55 AM, Jed Rothwell wrote:

 Harry Veeder wrote:
 
 Setting aside the detection of He for the time being does Oskar
 make a reasonable criticism of Arata's temperature measurements?
 
 
 Oskar: I wonder if it could be a deuterium effect on the thermocouple?
 Hydrogen and deuterium are notorious for dissolving in metals (as they are
 supposed to in the sample) . . .
 
 No, this is not reasonable. As you see from the first figure, one of
 the thermocouples is outside of the cell. Not very observant of Oskar.
 
 - Jed
 

He is concerned about the reading from the thermocouple inside the cell,
since it is the one exposed to either hydrogen or deteurium. He is
suggesting the D2 and H2 *might* breakdown into D and H at slightly
different rates and this explains the different temperature readings.

I don't know if a) they do breakdown at different rates and b) if this
breakdown can account for all the heat generated over the course of the
experiment.

Harry



[Vo]:A reasonable criticism of Arata's temperature measurements?

2008-06-21 Thread Harry Veeder

Setting aside the detection of He for the time being does Oskar
make a reasonable criticism of Arata's temperature measurements?


Oskar: I wonder if it could be a deuterium effect on the thermocouple?
Hydrogen and deuterium are notorious for dissolving in metals (as they are
supposed to in the sample) and since this usually involves breaking up into
atoms they might do this at slightly different rates which may affect the
thermocouple. Has a control experiment with a dummy sample been performed?
 -- comment # 5 from
http://physicsworld.com/blog/2008/06/coldfusion_demonstration_an_up_1.html


Harry