In my estimation Rumford's theory is the seed of an alternate theory of radiation. It could still grow and blossom into a well developed mathematical theory of heat.
I am interested in beat theory because it resonants (pun intended) with Rumford`s theory of hot and cold radiation, since both involve _differences_. A beat frequency is given by the difference of two frequencies and in Rumford`s theory two types of differences are important.The first is that the relative difference in temperature between two bodies determines which body is producing more hot or more cold radiation. The second is that the sign and magnitude of the difference between the received frequency and the oscillator's frequency determines whether the radiation increases or decreases the energy of the oscillator. Harry On Tue, Oct 13, 2020 at 3:21 PM JonesBeene <jone...@pacbell.net> wrote: > > > The beat frequency they were after was in the THz range and this was in > order to fit Hagelstein’s theory of optical phonons – > > > > … and yes - small gain was seen. > > > > However, in the earlier similar work without beat frequencies – single > laser only - much higher gain (order of magnitude more) has been reported > by Letts/Cravens. > > > > The reproducibility was apparently better in the later experiments - but > I do not think the lower result with the beat frequency is leading > anywhere. > > > > > > > > *From: *H LV <hveeder...@gmail.com> > > > > Beat frequencies of two lasers irradiating a surface appear in > > _Stimulation of Optical Phonons in Deuterated Palladium_ by Dennis Letts > and Peter Hagelstein > > https://www.lenr-canr.org/acrobat/LettsDstimulatio.pdf > > > > Harry > > > > >
