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2. Magnesium torch - Wikipedia

   en.wikipedia.org/wiki/Magnesium_torch

   An underwater torch is available in the Education Edition of the Minecraft sandbox video game, created by combining a torch with magnesium on a crafting table. [7] Featured occasionally in the Sea Hunt television show. [8] Magnesium torches were used in the documentary series The Undersea World of Jacques Cousteau. "The Secrets of the Sunken ...

3. Dive light - Wikipedia

   en.wikipedia.org/wiki/Dive_light

   A type of single use underwater lighting source that was in limited use during the 1950s is the magnesium torch, a pyrotechnic device using magnesium metal that could be ignited and would burn underwater. It produced a bright white all-round light, and once activated would continue to burn until exhausted.

4. Drowning detection system - Wikipedia

   en.wikipedia.org/wiki/Drowning_detection_system

   Active systems are often using a wearable on the swimmer, such as a wristband, that monitors the behaviour and position of the swimmer. If the swimmer is detected to be under water för a certain period, an alarm is triggered and through acoustic underwater communication from the wristband to receivers installed in the pool the alarm is transferred to on-site lifeguards that immediately can ...

5. Louis Boutan - Wikipedia

   en.wikipedia.org/wiki/Louis_Boutan

   Boutan developed a flash bulb that could be used underwater. He later used carbon arc lights for illumination. [1] [2] In 1898, he published the first book on underwater photography La Photographie sous-marine et les progrès de la photographie. Slides of his underwater photographs were shown at the 1900 Exposition Universelle in Paris. [1]

6. News, Politics, Sports, Mail & Latest Headlines - AOL.com

   homepage.aol.com

   Discover the latest breaking news in the U.S. and around the world — politics, weather, entertainment, lifestyle, finance, sports and much more.

7. Underwater construction - Wikipedia

   en.wikipedia.org/wiki/Underwater_construction

   Underwater inspection of underwater structures, installations, and sites is a common diving activity, applicable to planning, installation, and maintenance phases, but the required skills are often specific to the application. Much use is made of video and still photographic evidence, and live video to allow direction of the inspection work by ...