Were the laser beats in the Hagelstein, Letts & Cravens experiment of this type?
The way the beats are generated could play role in the generation of anomalous heat. Harry On Sun, Oct 18, 2020 at 2:51 PM Bob Higgins <rj.bob.higg...@gmail.com> wrote: > No, not exactly. Addition is a linear process and produces no frequencies > in the output of the summation which are not present in the input. A > nonlinear process is commonly applied to the summation to create beats. > For example putting a summation of sine wave voltages onto a diode would > produce a nonlinear current that would contain the beats. > > Sampling, like multiplication, is also a nonlinear process that can > produce beats. > > On Sun, Oct 18, 2020 at 12:19 PM H LV <hveeder...@gmail.com> wrote: > >> So the addition of frequencies requires that the input signal already >> contains a non-linear component. >> and for entirely linear input the frequencies would not be additive. >> Harry >> >> On Sun, Oct 18, 2020 at 12:08 PM Bob Higgins <rj.bob.higg...@gmail.com> >> wrote: >> >>> To get frequencies in the output that were not in the input requires a >>> nonlinearity. If you model the nonlinearity using a series such as Y = a + >>> bX + cX^2 + dX^3... >>> then all of the terms with X^2 and greater are the nonlinear terms. >>> Usually the coefficient of the squared term, c, is the largest of the >>> nonlinear terms. When you have an input that is the sum of two >>> frequencies, you get a component in Y that is c[sin(w1t) + sin(w2t)]^2 . >>> It is the square of the sum of sines that produces the sum and difference >>> frequencies. >>> >>> In the case of the Moire masks, you end up with a multiplication taking >>> place, not a sum. The product of sines will also produce a sum and >>> difference. Multiplication of inputs is a nonlinear operation. >>> >>> On Sun, Oct 18, 2020 at 9:44 AM H LV <hveeder...@gmail.com> wrote: >>> >>>> Hi, >>>> When two waves of different frequencies combine the result is a third >>>> wave with a beat frequency corresponding to the difference between the two >>>> original frequencies. A wave model can show how this happens, but I don't >>>> see how it can bring about the addition of frequencies. Can someone model >>>> this additive process for me? >>>> >>>> Harry >>>> >>>>>
