Dogfights in the sky: the future of drone delivery

US law curiously states that the air above our heads is public above 500 feet and that individuals own the air space above their homes up to 83 feet. So who owns the space between the 83 feet and the 500 feet? The Federal Aviation Administration is currently regulating it in the cause of public …

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Social mobility: the myth and the facts

Can-do, hard work, dedication are the cornerstones of the America myth of success. There is much hand-wringing about the decline of social mobility. But recent studies show that, the situation has not become worse in the last 30 or forty years. In fact, US social mobility has been relatively stable, and more rigid, than most …

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