## Re[2]: [NatureNS] Big Bang?

DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=bogan.ca;
Date: Mon, 25 Feb 2019 14:08:17 -0400
From: Larry Bogan <larry@bogan.ca>
To: naturens@chebucto.ns.ca
Precedence: bulk
Return-Path: <naturens-mml-owner@chebucto.ns.ca>
Original-Recipient: rfc822;"| (cd /csuite/info/Environment/FNSN/MList; /csuite/lib/arch2html)"
```
David,
Maxwell's equations summarize the laws of electric and magnetic fields. Their solutions for an oscillating electric charge describes the electromagnetic wave (light, radio, xray, microwave, etc) and in the solution the speed of those waves in a vacuum is determined by two constants, the permittivity and permeability of free space. These two constants are determined separately by the laws of electric and magnetic fields.

All this was known in the late 19th century.
https://en.wikipedia.org/wiki/Maxwell%27s_equations
--
Larry Bogan
<larry@bogan.ca>
Brooklyn Corner, Nova Scotia

On Mon, 25 Feb 2019 14:22:37 +0000
David <dwebster@glinx.com> wrote:

> Hi Burkhard, Lois, Don & All,
>      The more I hear about the big bang, which seems to be heavy on
> speculation and light on certainty, the more I am inclined to turn to
> the present and try to understand it.
>      One puzzle to which I have found no clear answer is a statement in a
> text on Electricity and Magnetism (G.R. Noakes,1950);  (page 322) that
> ratios of such measurements as capacity in electromagnetic units and
> capacity in electrostatic units is "...the simplest direct way of
> determining c, the speed of light. It would be inconvenient to do so but
> this suggests that the speed of light (in air ?) could be measured in
> the dark.
>      Does this imply that c is determined by the interaction of
> electrostatic and electromagnetic forces (possible because light waves
> involve both) or is this just a coincidence of ratios between two
> independently developed systems of measurement ?
> YT, DW, Kentville
>
```