Einstein Didn't Say That: Exposing the Common Sense in Relativity Theory
SKU: 9235948745

Einstein Didn't Say That: Exposing the Common Sense in Relativity Theory

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Einstein Didn't Say That: Exposing the Common Sense in Relativity TheoryEinstein Didn't Say That is a lighthearted but respectful exploration of the everyday logic behind special and general relativity. The first person to use the term 'curved space' was not Einstein, and not a physicist, but a reporter for the New York Times, who needed a catchy headline. What did Einstein really say, or not say, about curved space, time travel, wormholes, traveling twins, extra dimensions, multiple universes, dark matter and more? Have

Einstein Didn't Say That is a lighthearted but respectful exploration of the everyday logic behind special and general relativity. The first person to use the term 'curved space' was not Einstein, and not a physicist, but a reporter for the New York Times, who needed a catchy headline. What did Einstein really say, or not say, about curved space, time travel, wormholes, traveling twins, extra dimensions, multiple universes, dark matter and more? Have we been sold more sizzle than steak? With the help of dozens of quotes from well-known physicists, but mainly from Einstein himself, the author tries to separate Einstein's original ideas from some of the speculation that those ideas inspired in others. This is not a textbook or a history of physics, but rather the personal story of an ordinary guy's delight in discovering firsthand the genius, the logic, and the good old common sense in Einstein's work. When we take the time to look at what Einstein did say, and why, we can go on to develop our own opinions about the multitude of subsequent theories and ideas which claim to contain the DNA of relativity. An enjoyable pursuit!

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SKU: 9235948745

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It's a pleasing solution for me. The slim, pocketed design fits well in my front pocket. It probably fits other pockets well too. It's not perfect. But, it's solving for an imperfect solution that Apple is takling with their phones. Tap to pay with phones and digital ID will change the market for wallets. The physical size of cards limits how readily you can access any one card. It takes a bit of extra dexterity to pinch or slide some of the cards out. Ideally you'd have 4 on the outside, with remaining cards tucked in the center pocket. I just need more than 1/4 inch of card face to slide one out readily.
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