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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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1 янв 1915 г. - In 1915 Langevin invented the first system desinged to utilize sound waves and acustical echos under water as a detection device
Добавлено на ленту времени:
Development of sonar Technology
By
Brady Fortenberry
8 ноя 2018
0
0
391
Дата:
1 янв 1915 г.
Сейчас
~ 110 г назад
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