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Light travels 30 cm in 1 billionth of a second, or 1 nanosecond. A clock error o...

Piotr Kosek: "Light travels 30 cm in 1 billionth of a second, or 1 nanosecond. A clock error of just one millionth of a second would translate to several..." — True

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📅 31.05.2026 · Dzień, w którym wyłączą kosmos? - Astrofaza · 👁️ 9

True. The claim is true. The speed of light in a vacuum is exactly 299,792,458 meters per second. This means that in one nanosecond (one billionth of a second), light travels approximately 29.98 cm, which is consistent with th...

"Light travels 30 cm in 1 billionth of a second, or 1 nanosecond. A clock error of just one millionth of a second would translate to several hundred meters of displacement on a map." "Światło pokonuje 30 cm w ciągu 1nej miliardowej części sekundy, czyli 1 nanosekundy. Błąd zegara o zaledwie jedną milionową część sekundy przełożyłby się na kilkaset metrów przesunięcia na mapie."
🌐 (Machine-translated — original in Polish) · Original in Polishuage
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Transcript excerpt

Oryginał w języku Polskim Open on YouTube

Ponieważ fale radiowe poruszają się z prędkością światła, to docierają do nas z minimalnym, ale mierzalnym jednak opóźnieniem. I analizując te różnice czasu, chip w telefonie oblicza dystans od satelitów i wskazuje miejsce, w którym w tym momencie się znajdujesz. Teraz wyobraź sobie skalę tej precyzji. Światło pokonuje 30 cm w ciągu 1nej miliardowej części sekundy, czyli 1 nanosekundy. Błąd zegara o zaledwie jedną milionową część sekundy przełożyłby się na kilkaset metrów przesunięcia na mapie. Kurier nie trafiłby pod twój adres, a systemy nawigacyjne zamiast pomagać powodowałyby katastrofy. Mało tego, zegary na orbicie podlegają efektom teorii względności Einsteina. Ze względu na ogromną prędkość satelitów i słabsze pole grawitacyjne, czas płynie tam minimalnie inaczej niż na powierzchni Ziemi. Inżynierowie muszą stale wprowadzać popraw

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