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The Mine at the Bottom of the Sea: Mining manganese nodules becomes hazardous when the kids' mini-sub becomes disabled. Wild Water and Oil: An oil rig's submersible repair craft is trapped under the rig during a storm. The Silver Sea: Observing the chaos of the food chain from an open boat becomes dangerous.
YouTube Kids has faced criticism from advocacy groups, particularly the Fairplay Organization, for concerns surrounding the app's use of commercial advertising, as well as algorithmic suggestions of videos that may be inappropriate for the app's target audience, as the app has been associated with a controversy surrounding disturbing or violent ...
A 16th-century Islamic painting depicting Alexander the Great being lowered in a glass submersible. The concept of underwater transport has roots deep in antiquity. There are images of men using hollow sticks to breathe underwater for hunting at the temples at Thebes, and the first known military use occurred during the siege of Syracuse (415–413 BC), where divers cleared obstructions ...
A submarine (or sub) is a watercraft capable of independent operation underwater. (It differs from a submersible, which has more limited underwater capability.) [2] The term “submarine” is also sometimes used historically or informally to refer to remotely operated vehicles and robots, or to medium-sized or smaller vessels (such as the midget submarine and the wet sub).
The British Royal Navy M-class submarines were a small class of diesel-electric submarines built during World War I.The unique feature of the class design was a 12-inch (305 mm) gun mounted in a casemate forward of the conning tower.
HMS Nautilus was a Royal Navy submarine.She was the largest submarine built for the Royal Navy at the time. [1] She was also the first to be given a name. Nautilus was designed in response to recommendations for an overseas submarine displacing 1,000 tons and capable of 20 knots (37 km/h).
Cornelis Jacobszoon Drebbel [1] (Dutch pronunciation: [kɔrˈneːlɪ ˈɕaːkɔpsoːn ˈdrɛbəl]; [a] 1572 – 7 November 1633) was a Dutch engineer and inventor. He was the builder of the first operational submarine in 1620 and an innovator who contributed to the development of measurement and control systems, optics and chemistry.
Toy submarine powered by baking powder. A baking powder submarine is a plastic toy submarine that dives and surfaces with the addition of baking powder. Baking powder submarines are sometimes misidentified as "baking soda submarines"; however, baking soda alone dissolves but does not react when placed in water.