Getting esoteric on infrasound Re: [sdiy]

[John L Marshall]

<snip>
> One might ask the similar question at what point does AC become DC? When
> the current stops changing, of course. Technically there's no such thing
as
> DC unless you're talking about a never changing current that has always
> existed and will exist forever. But the attention-span-limited human brain
> puts arbitrary limits on things like that otherwise it can't cope.
>
> Terry Bowman, KA4HJH
> "The Mac Doctor"
>
</snip>

How is it that Morse code is sent over Continuous Waves? Aren't the waves
discontinuous?

Take care,
John, WA7BSR