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Book: Astrophysics for People in a Hurry
Quotes of Book: Astrophysics for People in a
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  1. Neil deGrasse Tyson _ Astrophysics for People in a

    The Hubble Space Telescope has spotted aurora near the poles of both Saturn and Jupiter. And on Earth, the aurora borealis and australis {the northern and southern lights} serve as intermittent reminders of how nice it is to have a protective atmosphere.
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  2. Neil deGrasse Tyson _ Astrophysics for People in a

    To picture a pulsar, imagine the mass of the Sun packed into a ball the size of Manhattan. If that's hard to do, then maybe it's easier if you imagine stuffing about a billion elephants into a Chapstick casing.
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  3. Neil deGrasse Tyson _ Astrophysics for People in a

    The most accurate measurements to date reveal dark energy as the most prominent thing in town, currently responsible for 68 percent of all the mass-energy in the universe; dark matter comprises 27 percent, with regular matter comprising a mere 5 percent.
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  4. Neil deGrasse Tyson _ Astrophysics for People in a

    Without a doubt, Einstein's greatest blunder was having declared that lambda was his greatest blunder.
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  5. Neil deGrasse Tyson _ Astrophysics for People in a

    If all mass has gravity, does all gravity have mass? We don't know.
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  6. Neil deGrasse Tyson _ Astrophysics for People in a

    There's no doubt about it: more varieties of carbon-based molecules exist than all other kinds of molecules combined.
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  7. Neil deGrasse Tyson _ Astrophysics for People in a

    Part the curtains of society's racial, ethnic, religious, national, and cultural conflicts, and you find the human ego turning the knobs and pulling the levers. Now imagine a world in which everyone, but especially people with power and influence, holds an expanded view of our place in the cosmos. With that perspective, our problems would shrink-or never arise at all-and we could celebrate our earthly differences while shunning the behavior of our predecessors who slaughtered one another because of them.
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  8. Neil deGrasse Tyson _ Astrophysics for People in a

    …I learned in biology class that more bacteria live and work in one centimeter of my colon, than the number of people who have ever existed in the world. That kind of information makes you think twice about who–or what–is actually in charge.
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  9. Neil deGrasse Tyson _ Astrophysics for People in a

    Mount Everest is about as tall as a mountain on Earth can grow before the lower rock layers succumb to their own plasticity under the mountain's weight.
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  10. Neil deGrasse Tyson _ Astrophysics for People in a

    Dark energy is a mysterious pressure in the vacuum of space that acts in the opposite direction of gravity, forcing the universe to expand faster than it otherwise would.
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  11. Neil deGrasse Tyson _ Astrophysics for People in a

    Collectively, these findings tell us it's conceivable that life began on Mars and later seeded life on Earth, a process known as panspermia.
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  12. Neil deGrasse Tyson _ Astrophysics for People in a

    Consider an adult who tends to the traumas of a child: spilled milk, a broken toy, a scraped knee. As adults we know that kids have no clue of what constitutes a genuine problem, because inexperience greatly limits their childhood perspective. Children do not yet know that the world doesn't revolve around them. As grown-ups, dare we admit to ourselves that we, too, have a collective immaturity of view? Dare we admit that our thoughts and behaviors spring from a belief that the world revolves around us? Apparently not. Yet evidence abounds. Part the curtains of society's racial, ethnic, religious, national, and cultural conflicts, and you find the human ego turning the knobs and pulling the levers. Now imagine a world in which everyone, but especially people with power and influence, holds an expanded view of our place in the cosmos. With that perspective, our problems would shrink-or never arise at all-and we could celebrate our earthly differences while shunning the behavior of our predecessors who slaughtered one another because of them.
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