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Blocks of ice containing as little as four percent wood pulp were weight for weight as strong as concrete; in honor of the originator of the project, we called this reinforced ice "pykrete". When we fired a rifle bullet into an upright block of pure ice two feet square and one foot thick, the block shattered; in pykrete the bullet made a little ...
Multiple erratics on the terminal moraine of the Okanogan Lobe. The Cascade Mountains are in the background.. The term "erratic" is commonly used to refer to erratic blocks, which geologist Archibald Geikie describes as: "large masses of rock, often as big as a house, that have been transported by glacier ice, and have been lodged in a prominent position in the glacier valleys or have been ...
Typically about one-tenth of the volume of an iceberg is above water, which follows from Archimedes's Principle of buoyancy; the density of pure ice is about 920 kg/m 3 (57 lb/cu ft), and that of seawater about 1,025 kg/m 3 (64 lb/cu ft). The contour of the underwater portion can be difficult to judge by looking at the portion above the surface.
As millions sweat out the heat wave, blocks of lake ice keep these campers cool By NICK PERRY, HOLLY RAMER and ROBERT F. BUKATY Associated Press SQUAM LAKE, N.H. (AP) — As New England baked in a heat wave Thursday, guests at one campground were keeping their food and beer cold with blocks of ice harvested months earlier from a frozen lake.
A serac (/ s ɛ ˈ r æ k ˌ ˈ s ɛ r æ k /) (from Swiss French sérac) is a block or column of glacial ice, often formed by intersecting crevasses on a glacier. Commonly house-sized or larger, they are dangerous to mountaineers, since they may topple with little warning. Even when stabilized by persistent cold weather, they can be an ...
SQUAM LAKE, N.H. (AP) — As New England baked in a heat wave Thursday, guests at one campground were keeping their food and beer cold with blocks of ice harvested months earlier from a frozen ...
Ice blocking is a recreational activity in which individuals race to the bottom of a hill sitting on large blocks of ice. In the United States ice blocking is thought to be regional, occurring in the West. The only equipment needed is some large blocks of thick ice and clothing, preferably padded.
Regelation is the phenomenon of ice melting under pressure and refreezing when the pressure is reduced. This can be demonstrated by looping a fine wire around a block of ice, with a heavy weight attached to it. The pressure exerted on the ice slowly melts it locally, permitting the wire to pass through the entire block.
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