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原子時計

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Navstar 1, the first GPS satellite launched 1978, took off on Feb 22, 1978. This friendly piece explains the Block I tests, atomic clocks, and how that small launch grew into the GPS system we rely on today. 子供向け科学

ナブスター1: 1978年に打ち上げられた最初のGPS衛星

ナブスター1、1978年に打ち上げられた…

Alexandra Hochee

Alexandra Hochee

6月 20, 2026 •
1 分で読める
A warm, clear look at the first GPS satellite launched 1978. Learn how NAVSTAR Block I used atomic clocks and careful math to begin a quiet revolution that still guides phones, rescue teams, and daily life. 子供のための科学

最初のGPS衛星の打ち上げ（1978年）：NAVSTARの静かな革命

1978年に打ち上げられた最初のGPS衛…

Roshni Sawhny

Roshni Sawhny

3月 27, 2026 •
1 分で読める

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