Scientific American - February 2010

Scientific American - February 2010
English | PDF | 116 Pages | 17.5 Mb

Scientific American (informally abbreviated to SciAm) is a popular science magazine published since August 28, 1845, which according to the magazine makes it the oldest continuously published magazine in the United States.This magazine is designed for technically educated professionals and managers who have a positive predisposition to read about, get involved with and act on a broad range of the physical and social sciences. Its articles and features anticipate what the breakthroughs and the news will be in a society increasingly dependent upon scientific and technological advances.

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R.R. Auction (America's Autograph Auction) May 2009

R.R. Auction (America's Autograph Auction) May 2009
English | 316 Pages | 27MB | PDF

RR Auction offers monthly internet auctions for autographs, signed memorabilia, historical documents, collectible autographs, signed collectibles and a catalog in print and online, all authenticated by experts.


http://rapidshare.com/files/341788881/R.R._Auction_345_200905.pdf
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