[NJARC] Where does "radio" begin?

[Al Klase]

Steve,

Check out "The Wonders of Wireless telegraphy Explained" by John Ambrose 
Fleming, yes the Fleming valve guy.

Free download: 
http://books.google.com/books/about/The_wonders_of_wireless_telegraphy_expla.html?id=2wdpAAAAIAAJ

He starts with astronomers discovering that the propagation of light was 
not instantaneous in the 1600's, and works forward.

Al

On 3/15/2013 7:19 AM, sgt88 at atlanticbb.net wrote:
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> _________________________________________________________
> I'd like to learn as much as I can about the 'beginning' of 'radio'.
>
> As I understand it, the production/manifestation of the Hertzian wave 
> seems to be 'the' start...
>
> But...there's the SPARK.
>
> WHY did Hertz use a spark???
>
> WHY did he have the spark connected to WIRE?
>
> What was he expecting to find/measure?
>
> Where did he get his IDEAS?
>
> I find it most interesting that his work - EMF wave propagation - was 
> on 2 meters = approx 140 MEGAcycles!!!
>
> Yet...'everybody' afterwards were playing around with LOW frequency - 
> nominally 200 meters - radio experimentation....
>
> What happened..and why... 'between' Hertz 2 meters ACTUAL transmission 
> and 'everyones' LOW frequency experiments????.....especially when they 
> needed to erect GARGANTUAN metal structures!!!!...while he did his 
> work in a large ROOM....with his metal structure about the size of a 
> coat hanger....
>
> Why did they not 'play around' 2 meters...and move on from there???
>
> Would appreciate knowing the good books, sources etc for me to read 
> about THINGS...and PRIOR stuff..leading to the beginning of 'radio.'
>
> Thank you,
> Steve T
>
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-- 
Al Klase - N3FRQ
Jersey City, NJ
http://www.skywaves.ar88.net/