In everyday life and in classical physics, events are ordered in time: a cause can only influence an effect in its future not in its past. As a simple example, imagine a person, Alice, walking into a room and finding there a piece of paper. After reading what is written on the paper Alice erases the message and leaves her own message on the piece of paper. Another person, Bob, walks into the same room at some other time and does the same: he reads, erases and re-writes some message on the paper. If Bob enters the room after Alice, he will be able to read what she wrote; however Alice will not have a chance to know Bob's message. In this case, Alice's writing is the "cause" and what Bob reads the "effect". Each time the two repeat the procedure, only one will be able to read what the other wrote. Even if they don't have watches and don't know who enters the room first, they can deduce it by what they write and read on the paper. For example, Alice might write "Alice was here today", such that if Bob reads the message, he will know that he came to the room after her.
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Hubble find oldest galaxies - 0 views
Foreign Aid Set to Take Hit in U.S. Budget Crisis - NYTimes.com - 0 views
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America’s budget crisis
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While the final budget for the year remains uncertain given the politics surrounding the special Congressional committee charged with finding more than $1 trillion in cuts over all, it is clear that foreign aid will decline for a second year.
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“We’re going to have to do more with less — or less with less, depending on how you look at it,” said Deputy Secretary of State Thomas R. Nides, who oversees the department’s budget and operations.
Study finds capitalist network of companies runs the world [with list] | ZME Science - 0 views
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capitalist ne
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capitalist network of companies runs the world
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A recent study conducted by researchers from Zurich found that a ‘super entity’ of 147 companies controls 40% of the entire corporate network.
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