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The launch was a "technological Pearl Harbor" for the United States, sparking immediate changes in policy and culture. Sputnik, 1957 - History State Gov

: Three silver-zinc batteries designed to last two weeks. SputnikHD

: Four external whip antennas (2.4 to 2.9 meters long). The launch was a "technological Pearl Harbor" for

: Elliptical path with a low point of 228 km and a high point of 947 km. 🌎 Historical Impact SputnikHD