There is a liquid that you can breathe in called perfluorohexane. Animals can be submerged in a bath of perfluorohexane without drowning.
100 Mind-Blowing Submerged Facts
Mount Everest isn’t the tallest mountain on Earth. Mauna Kea and Mauna Loa in Hawaii, the twin volcanoes, are taller than Mount Everest due to 4.2km of their heights being submerged underwater. The twin volcanoes measure a staggering 10.2km in total, compared to Everest’s paltry 4.6km.
Lemons float, but limes sink. This is because of their different densities, often causing unpeeled limes to sink if submerged in a liquid.
Mount Everest isn’t the tallest mountain on Earth. Hawaii’s twin volcanoes Mauna Kea and Mauna Loa are taller than Mount Everest. 2.6 miles of the volcanoes are submerged underwater, and Mauna Kea and Mauna Loa are 6.34 miles tall.
Cold War reaches boiling point. While the world watched the tensions between the Soviet Union and the United States during the Cuban Missile Crisis in October 1962, they didn’t know just how close they came to destruction. The US Navy dropped harmless depth charges on a submerged Russian submarine off the coast of Cuba to try and force it to surface. The crew, believing that World War Three had begun, argued whether they should launch the nuclear torpedo that they had on board, and came close to a unanimous vote to launch. Luckily, Senior Officer Vasili Arkhipov cast the one vote needed to stop the impending destruction.