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Obsidian can be used to make extremely sharp knives, and obsidian blades are a type of glass knife made using naturally occurring obsidian instead of manufactured glass. Obsidian is used by some surgeons for scalpel blades, although this is not approved by the US Food and Drug Administration (FDA) for use on humans. [61]
Obsidian projectile point.. Obsidian is a naturally formed volcanic glass that was an important part of the material culture of Pre-Columbian Mesoamerica.Obsidian was a highly integrated part of daily and ritual life, and its widespread and varied use may be a significant contributor to Mesoamerica's lack of metallurgy.
Their survival story is known as 117 Days Adrift despite the duration actually being longer (118 days) because initial news reports were wrong and it was decided to keep this name for consistency. [2] The Baileys' journey began when they left Southampton, England, in their 31-foot (9.4 m) yacht Auralyn. Their intended destination was New Zealand.
Since his survival drift, he's made dozens of additional offshore passages and ocean crossings, most of them with no more than two other crew. This incident is featured on the I Shouldn't Be Alive episode "76 Days Adrift". Callahan's story also featured on an episode of British survival expert Ray Mears's television series Extreme Survival.
The shipwreck was transformative for Scaling who went on to write a popular account of the incident called Albatross: The True Story of a Woman's Survival at Sea (1994) which was made into a TV film, Two Came Back; and profiled in the episode "Shark Survivor" on the Discovery channel series I Shouldn't Be Alive (Ep. 1, Se. 1, 2005-08-10); and ...
From the Pacific Islands to the Arctic Circle, “In Real Life” goes to the frontlines of the debate over deep sea mining.
The sea life was all part of an ecosystem that evolved around his raft and followed him for 1,800 nautical miles (3,300 km) across the ocean. He collected drinking water from two solar stills (the third of which he had cut open in order to know how to use them) and various jury-rigged devices for collecting rainwater , which together produced ...
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