World history on ice
Article Abstract:
A 48-by-12 box sitting at the University of New Hampshire holds the world's history inside. The ice locker contains a two-mile strip of ice drilled from an ice sheet in Greenland as part of the Greenland Ice Sheet Project Two. The ice is believed to be the key to vital data about the earth's climate over the past 250,000 years and other important events that occurred in the last 110,000 years of Earth's history. The ice sheets are composed of snow that piled up layer by layer, year after year, trapping the air, chemicals, metals, dust and even radioactive fallout. Sealed off in the ice, these provide a clue to the atmosphere of thousands of years ago.
Publication Name: MIT's Technology Review
Subject: Science and technology
ISSN: 1096-3715
Year: 1997
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Bubbles by the billions
Article Abstract:
MIT Dept of Mechanical Engineering head Nam Suh discovered the process which led to the development of microcellular plastics, 50-micron-diameter-bubble permeated polymer materials. The effort was prompted by remark from an Eastman Kodak executive who wanted to minimize the amount of plastics in products to save on production costs. The process Suh invented involves the high-pressure mixing of liquid plastic and gas to produce bubbles.
Publication Name: MIT's Technology Review
Subject: Science and technology
ISSN: 1096-3715
Year: 1998
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