Oklahoma, 1939...
WPA (Works Progress/Work Projects Administration) worker and his wife sitting in front of their shack home on the Arkansas River near Webbers Falls, Oklahoma. This man said that last year he thought maybe he would be a little better off when he got the WPA work and had a small amount of cash coming in but that he was worse off now. "Last year I had a cow and some chickens and I had to sell my cow and eat my chickens. I get worse off every year"...
Source
Library of Congress Russell Lee photographer
Control Data Corporation Digital GeoBallistic Computer (DGBC), Bloomington, Minnesota 1961.
CDC Computer Engineer David Ohrt at the controls performing a final systems check before delivery to a US Navy base in Norfolk, Virginia. The submarine-launched ballistic missile¹ targeting computer, a militarized version of the 48-bit CDC 1604 computer designed by Seymour Cray, was integrated into a General Electric Mark 84 fire control system onboard the Polaris² Fleet of 41 Ballistic Missile submarines. It was a dual processor computer using two independent Digital Control Computers (DCCs) each with 16,000 words of core memory and capable of performing 87,000 operations per second linked by two Multiplexer channels and two Parallel-Serial Converter Channels. Together they performed orbital trajectory calculations and could independently control the individual targeting of 16 onboard Polaris missiles¹. Dial controls include preset target number, missile number, Latitude (in degrees, minutes, seconds), Longitude, Target Elevation, North and East Wind Offset, tactical offsets, Burst Height, and Barometer-air density. The UGM-27 Polaris Submarine-Launched Ballistic Missile (SLBM) is a weapon system capable of carrying up to three 200 kiloton W58 thermonuclear warheads³ within a range of 4600 km.
The Confluence of the turquoise waters of Havasu Creek and the muddy water of the Colorado River is at the bottom of the Grand Canyon in Arizona.
