maritime

Sal Mercogliano of What's Going on With Shipping? discusses a debate between the Center for Maritime Strategy and the Heritage Foundation over whether the Jones Act helps or harms American shipping and national security.

Tom Scott investigates moire-effect beacons, called Inogon leading marks, a Swedish invention from the 1980s that shows different patterns depending on the viewer's position. He visits one used to mark an undersea cable and tracks down its history.

Fully Charged rides a 100% battery-electric ferry across the 4 km strait between Helsingborg, Sweden and Helsingør, Denmark. The ferry crosses up to 46 times a day and charges for a few minutes at each side. The video shows the charging setup, including the robot arm that couples the charger.

A Smarter Every Day episode from aboard a nuclear submarine on how the crew makes breathable air. It covers oxygen generation from seawater, oxygen candles and CO2 scrubbing with amine.

A roughly 45-minute vintage US military instructional film that gives a comprehensive overview of celestial navigation, covering sextant use and the theory behind lines of position.

An NFB documentary about the shipbreaking yards of Alang, India, where about 40,000 people dismantle huge ships by hand in dangerous conditions.

Sam Holmes Sailing visits sailing legend Sven Yrvind and tours his boat, covering the man and his small-boat design philosophy.

Wendover Productions explains how the US military moves people and materiel worldwide, including prepositioned equipment, sealift and airlift. It shows the scale of the logistics system behind US force projection.

Military History Visualized charts ship production by the United States and Japan from December 1941 to September 1945. The growing numbers show why Japan, despite a stronger starting navy, could not win a long war.

Destin Sandlin of Smarter Every Day documents boarding a US Navy nuclear submarine in the Arctic during the ICEX 2020 under-ice exercise. It is the first of a series on life aboard a fast attack submarine.

Five hours of the late-night BBC Radio 4 Shipping Forecast, uploaded to mark its 150th anniversary. It can be used as sleep audio or to learn the sea areas named in the broadcast.

Defense analyst H I Sutton argues that a new type of Chinese landing barge can only be explained by planning for an amphibious assault, in particular on Taiwan.

Practical Engineering explains how canal locks work, including the water-saving basins of the new Panama Canal locks.

Wendover Productions explains the wave of supply shortages in 2021, arguing the causes go beyond COVID. It covers how just-in-time manufacturing was applied, container imbalances and the chip shortage.

A short, sarcastic Half as Interesting video about a tiny freight railway in Canada built to exploit a shipping regulation loophole. It explains how a track just 100 feet long counted as a railway.

DW Documentary on the roughly 6,300 ships sunk in World War II that are now rusting and leaking oil into the seas. Scientists investigate contamination and the risk of a huge oil spill.

A New Yorker short documentary about the 2014 sinking of the Sewol ferry in South Korea, based on the film In the Absence. It examines the failures in the rescue and the political aftermath.

Laura Try recounts her 3,000-mile row across the Atlantic as part of a crew of four women in the 2018 Talisker Whisky Atlantic Challenge.

Destin Sandlin of Smarter Every Day explains how a US Navy nuclear submarine surfaces through Arctic ice, filmed during the ICEx exercise. It shows ballast and control systems and the physics involved.

Dwarkesh Patel interviews Sarah Paine, a Naval War College historian, about continental versus maritime powers and how that explains decisions by Xi and Putin. They also cover a possible Taiwan war, the fall of the British Empire, WW2 strategy and how to study history.

A short clip about the Australian Collins class submarine HMAS Rankin reportedly defeating US Navy ships in a war-game exercise.

Retired submarine captain David Marquet explains, with drawings, how he turned the USS Santa Fe around by treating his crew as leaders rather than followers. It summarizes the ideas of his book Turn the Ship Around.

Amateur footage of a Japanese coast guard boat riding up and over large tsunami waves after the March 2011 Tohoku earthquake. It is short and unedited.

A short video illustrating the hazard of pressure differentials (delta P) in commercial diving, where a pressure difference creates enormous force on a diver. It is a safety-oriented look at diving accidents.

Footage of the US Navy's Phalanx CIWS, a radar-guided 20 mm Gatling gun, firing in live target practice. The Phalanx serves as terminal defense against anti-ship missiles.