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Money: Before Bitcoins, There Were Yap Stones

Money is among humanity’s greatest inventions. While money may be a physical object, it is an idea, a great subtle and still changing idea. No one today knows the inventor or inventors. As the idea has changed over centuries it must have had many inventors. When my physicist colleagues study an idea or theory, chewing on it until it is digestible, they pronounce it simple. Indeed, it is remarkable that when complex, subtle, deep, and broad ideas enter our minds and we feel that we really grasp them, they often appear simple and beautiful. Physicists refer to Einstein’s Theory of…

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Can Modern Jetliners Be Hacked?

Is it possible for hackers to break into the control systems of airliners in flight? Aviation experts are skeptical, but APTN reports that one hacker claims to have done that. If there is any truth to the story, it raises significant implications even beyond the memories of what occurred on 9/11. A U.S. federal court document posted by APTN indicates that the FBI has seized computer equipment owned by outspoken hacker Chris Roberts, and filed for a search warrant to examine the devices. Is Roberts seeking publicity?  No doubt. How vulnerable are the flight systems on commercial airliners? APTN says…

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