Re: [TML] looking for equation
shadow@xxxxxx 23 Oct 2015 12:25 UTC
On 22 Oct 2015 at 12:18, Jerry Barrington wrote:
> Just to argue your basic premise, assuming you are walking about
> electromagnetic or sound emissions, the sum of emissions from 2 fixed
> & equal sources is *not* elliptical. You are talking A+B, but the
> sum of emissions would be 1/A^2 + 1/B^2.
(Shhh! *They* don't know that)
More seriously, it's mostly a handwave anyway, and involves "magic"
Also, if I recall correctly, "waves" emitted from focus A will
converge to focus B and vice-versa.
--
Leonard Erickson (aka shadow)
shadow at shadowgard dot com