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[[File:Antarctic Sound-2016-Iceberg 02.jpg|300px|left]]
[[File:Blowtorch-Drink.jpg|250px|left]]
An '''[[iceberg]]''' is a large piece of freshwater [[ice]] that has broken off a [[glacier]] or an [[Ice-shelf|ice shelf]] and is floating freely in open water. It may subsequently become frozen into [[pack ice]] (one form of sea ice). As it drifts into shallower waters, it may come into contact with the seabed, a process referred to as seabed gouging by ice. About 90% of an iceberg is below the surface of the water.
A '''[[blowtorch (drink)|blowtorch]]''' is an alcoholic cocktail invented by members of the 1928 Byrd [[Antarctic]] Expedition. The recipe calls for mixing lemon powder with grain alcohol and diluting the mixture with ice until it's drinkable.


Because the density of pure [[ice]] is about 920 kg/m3, and that of seawater about 1025 kg/m3, typically about one-tenth of the volume of an iceberg is above water (which follows from Archimedes's Principle of buoyancy). The shape of the underwater portion can be difficult to judge by looking at the portion above the surface. This has led to the expression "tip of the iceberg", for a problem or difficulty that is only a small manifestation of a larger problem.
Dr. F. Dana Coman, the expedition's physician, and the man with the keys to the liquor supply, took some of the grain alcohol and mixed it with the lemon powder and the crushed orange juice concentrate. The men dubbed this extremely potent drink a "blowtorch." [[Richard Byrd]] himself participated in the festivities and every couple of weeks, he would authorize a tub of blowtorches to be made up and a party held to help the men relax and unwind during the long winter.


Icebergs are monitored worldwide by the U.S. National Ice Center (NIC), established in 1995, which produces analyses and forecasts of Arctic, [[Antarctic]], Great Lakes and Chesapeake Bay ice conditions. More than 95% of the data used in its sea ice analyses are derived from the remote sensors on polar-orbiting satellites that survey these remote regions of the Earth.
Drinking contests broke out between the men, most notoriously between Danny Davies and [[Gould Coast|Larry Gould]], who got carried away and ordered everyone to "get cock-eyed drunk."


'''([[Iceberg|Full Article...]])'''
'''([[blowtorch (drink)|Full Article...]])'''
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