[GreenKeys] Old ideas recycled

[Jim Haynes]

First, for one non-green-key one - there was the invention of frequency
hopping spread spectrum by actress Hedy Lamarr and musician George 
Antheil.  Not practical with the technology of the time, but now
important.

Then there was the Cardwell teleprinter - AWA museum has one - which used
a type cylinder as the printing element.  Came back as the printing elemnt
in Teletype Model 28 typing reperforators, and then in Model 32/33.

Teletype patented a daisy wheel printer about the same time as the
Model 26, but I guess the Model 26 typing method looked better at the
time (and had already been proved in the stock ticker).  But it took
later plastic technology to make the cheap molded daisy wheels possible,
and microelectronics to have a nice way of using them in a printer.
I don't know if daisywheel printers were used as communication terminals,
but they sure knocked the socks off Teletype designs like Model 37.

 	---

 	"Ya can argue all ya wanna, but it's dif'rent than it was."
 	"No it ain't! No it ain't!  But ya gotta know the territory."
 		Meredith Willson, The Music Man