Re: Remember "Bit-Slice" Chips ?

On 12/14/24 9:06 PM, rbowman wrote:

On Sat, 14 Dec 2024 23:16:57 +0100, D wrote:
 

Fascinating! Thank you for sharing!

 I never saw one but there were also ELF transmitters.
 https://en.wikipedia.org/wiki/Extremely_low_frequency
 I think some of the frequencies are still in use but nobody is talking.
Imagine what it would be like if humans could directly perceive the sea of
electromagnetic radiation we live in.
 One project I turned down was a botanist with a theory that trees
communicated via electromagnetic waves. The idea hasn't gone away.
 https://www.smithsonianmag.com/science-nature/the-whispering-
trees-180968084/
 There is evidence that EMFs do affect trees though.
 https://ehtrust.org/electromagnetic-fields-impact-tree-plant-growth/
 Sometimes for the better?
 https://www.newscientist.com/article/mg14519600-500-forest-grows-tall-on-
radio-waves/
 It reminds me of when RF heat sealers were introduced. The folklore
suggested that women working around them either became sterile or
amazingly fecund. Humans love their stories.

   I think ELF/SLF/ULF frequencies are still reserved by
   the US govt, almost entirely for military use. There
   is little else that can penetrate deep ocean. Alas
   the DATA RATE is horrific. Also can't have a lot of
   people using those bands.
   Another submarine technique appears the release of
   a cabled radio buoy that can receive at satcom freqs.
   Alas if you TRANSMIT from it then an enemy can
   easily pinpoint your location. Sub/base comms are
   thus almost always one way - orders/codes/status
   kinds of stuff.