& this pearl from Radical Software 1973

http://www.radicalsoftware.org/volume2nr5/pdf/VOLUME2NR5_art09.pdf

Horowitz, Andrew. — «Domestic communications satellites». — p. 36-40.

/

the magazine is highly recomended ! thanks to Alejandra Perez I
discovered this as she translated the included visionary text – still
totally relevant today – of Juan Downey “TEchnology and Beyond”

download here :

http://www.radicalsoftware.org/e/volume2nr5.html