4 янв 1914 г. - First exploration of the sea using sound waves
Описание:
Reginald Fessenden was the first man to use an oscillator to discover new things in the ocean. This event is significant because it was the first time an oscillator was used to bounce a signal off an iceberg and the seafloor.Добавлено на ленту времени:
Дата:
4 янв 1914 г.
Сейчас
~ 110 г назад
