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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Alexander
Lexington, US
★★★★★ 5
Easy to apply, neutral smell, and lasts long
I usually hate sunscreen, but this brand is acceptable. It doesn't leave a terrible waxy feeling on your skin, and it's easy to apply on your face. Also, it doesn't have an overpowering smell, which is nice.
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Reviewed in the United States on July 17, 2013
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Kelly Heitman
Waukegan, US
★★★★★ 2
Dry-touch but still uncomfortable to wear
It didn't rub in like regular sunblock, I suppose because the of the 'dry-touch'. But I could still feel it on my skin and was a little bit itchy. If you continue to rub it actually kind of peels away-then obviously negating putting it on in the first place. :(
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Reviewed in the United States on February 5, 2014
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Stella
Houston, US
★★★★★ 5
It is a great sunscreen.
I love it, because it is no greasy and it feels like you don't have it on your face. It is a little expensive comparing to others but I think it is a good choice.
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Reviewed in the United States on July 15, 2013
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GisliNM
West Palm Beach, US
★★★★★ 4
Have used it for years
One of the the best on the market because it is a broad spectrum sunscreen protecting against both UVA and UVB rays. But as with all lotions it must be reapplied after several hours.
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Reviewed in the United States on May 28, 2013
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Kim LP
Charlottesville, US
★★★★★ 5
Lightweight sunscreen for face, 30 spf, everyday mix with foundation
Style: Face Lotion - SPF 30, Size: 1.7 Fl Oz (Pack of 1)
Great sunscreen and it is travel size! This suscreen is 30 spf, has a yellow tint, which works well as a facial sunscreen, while toning redness. It mixes well with three types of foundations. It is not sticky, absorbs well. Smells good.
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Reviewed in the United States on March 5, 2026

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