On 27/12/2017 20:10, Andy Burns wrote:
Bill Wright wrote:

What are the parameters that set the speed of electromagnetic
transmission in a vacuum? I've googled everywhere but I can't find the
answer. It's easy enough to find the figure but WHY? Why not
29,979,245.8 metres per second or 2,997,924,580 metres per second?

The units are irrelevant, it's just 1.0 speed of light per unit time.

No, that would be an acceleration.