Showing posts with label Radar. Show all posts
Showing posts with label Radar. Show all posts

Wednesday, February 11, 2015


''We procure means of seeing objects afar off, as in the heaven and remote places; and represent things near as afar off, and things afar off as near; making feigned distances.''



Radar Astronomy (Evans & Hagfors, 1968)

https://archive.org/details/RadarAstronomy

Saturday, January 24, 2015


1958: ''How the Web Was Won''


 


The Semi-Automatic Ground Environment (SAGE)  air defense system was designed by IBM for the US Air Force in the early 1950s to coordinate the response to air attack:
''Its innovative technological contributions to IBM and the IT industry as a whole were significant. These included magnetic-core memories, which worked faster and held more data than earlier technologies; a real-time operating system (a first); highly disciplined programming methods; overlapping computing and I/O operations; real-time transmission of data over telephone lines; use of interactive terminals and input light pens (a first); redundancy and backup methods and components; and the highest reliability of computer systems (uptime) of the day. It was the first geographically distributed, online, real-time application of digital computers in the world. Because many of the technological innovations spun off from this project were ported over to new IBM computers in the second half of the 1950s by the same engineers who had worked on SAGE, the company was quickly able to build on lessons learned in how to design, manufacture and maintain complex systems.''
http://www-03.ibm.com/ibm/history/ibm100/us/en/icons/sage/

SAGE Air Defense System general manual (I.B.M.,1958)

https://archive.org/details/bitsavers_ibmsageSAGm1958_18586730

SAGE Air Defense System Input System (I.B.M.,1958)

https://archive.org/details/bitsavers_ibmsage352_26517675

Tuesday, January 20, 2015



''It's only the dead dreams of The Cold War Kid.''



DEW Line-Distant Early Warning, The Miracle Of America's First Line Of Defense (1957)

https://archive.org/details/DewLine

Tuesday, January 13, 2015

''We have seen Mary Baker Eddy with one eye.''



''A cryptic sentence (''We have seen Mary Baker Eddy with one eye'') was inserted into a commercial short-wave broadcast to inform British Royal Radar Establishment of the invention of the T/R (Transmit/Receive) switch allowing a single radar antenna to be used for both transmitting and receiving (having seen the Christian Science building with just one antenna).''

 Five years at the Radiation Laboratory (1946,M.I.T.)

https://archive.org/details/fiveyearsatradia00mass