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