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Cosmic CAT scan: Observing the early universe-with 10,000 TV antennas

Article Abstract:

Low-tech radio telescope, Primeval Structure Telescope (PaST) is under construction in western China that would use thousands of consumer television antennas and hundreds of cheap personal computers to slice through the fog. Astronomers expect that PaST would reveal a uniform haze of bright neutral hydrogen at about 200 million years after the big bang, which became increasingly punctuated by bubbles of ionized and dark-hydrogen surrounding the first stars.

Author: Gibbs, W. Wayt
Publisher: Scientific American, Inc.
Publication Name: Scientific American
Subject: Science and technology
ISSN: 0036-8733
Year: 2005
China, Radio & TV communications equipment, Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing, Broadcast & CATV Antennas, Usage, Design and construction, Observations, Radio telescopes, Television antennas, Universe

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Beyond binary

Article Abstract:

Optex Communications Corp. has developed a new data storage system which uses an erasable 5.25-in. disc cartridge to record 5.2 gigabytes of information. The technology, dubbed electron trapping optical memory, stores data, which can be more than one bit, by reacting to light rather than heat.

Author: Gibbs, W. Wayt
Publisher: Scientific American, Inc.
Publication Name: Scientific American
Subject: Science and technology
ISSN: 0036-8733
Year: 1995
Innovations, Computer peripherals industry, CD-RW drives, Erasable optical disk drives, Optex Communications Corp.

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Bellcore on the block

Article Abstract:

The consortium of Baby Bell telephone companies that owns New Jersey-based Bell Communications Research (Bellcore) is considering selling the research facility. The move is made more likely by the fact that the various firms that own Bellcore now have divergent business interests.

Author: Gibbs, W. Wayt
Publisher: Scientific American, Inc.
Publication Name: Scientific American
Subject: Science and technology
ISSN: 0036-8733
Year: 1995
Mergers, acquisitions and divestments, Telecommunications services industry, Telecommunications industry, Regional Bell Operating Companies, Bellcore

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