Diesel-powered submarines present a challenge that may seem paradoxical at first. Their engines require oxygen to operate, yet these vessels routinely travel beneath the ocean surface. Naval engineers ...
Nov. 16 (UPI) --A 13-year-old girl combined her love of scuba diving with her passion for magic and broke a Guinness World Record for doing 38 tricks in 3 minutes while underwater. Avery Emerson ...
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