The mechanical voice of the loudspeaker cracked across the clear, dry air of New Mexico’s Tularosa Valley: “Ten, nine, eight . . .” Safe in a concrete bunker, tense men at a periscope window kept ...
Click to open image viewer. CC0 Usage Conditions ApplyClick for more information. This is the Sonic Wind 1 rocket sled, which was powered by nine solid fuel rockets with 40,000 pounds total thrust for ...