Oxygen Quotations
Oxygen Quotes from:
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Oxygen Quotes
All the green in the planted world consists of these whole, rounded chloroplasts wending their ways in water. If you analyze a molecule of chlorophyll itself, what you get is one hundred thirty-six atoms of hydrogen, carbon, oxygen, and nitrogen arranged in an exact and complex relationship around a central ring. At the ring's center is a single atom of magnesium. Now: If you remove the atom of magnesium and in its exact place put an atom of iron, you get a molecule of hemoglobin. The iron atom combines with all the other atoms to make red blood, the streaming red dots in the goldfish's tail.
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Memories Quotes
One often feels as though something had happened before, I remember. It comes quite close to you and stands there and you know it was just this way once before, exactly so; for an instant you almost know how it must go on, but then it disappears as you try to lay hold of it like smoke or a dead memory. "We could never remember, Isabelle," I say. "It's like the rain. That has also become one, out of two gasses, oxygen and hydrogen, which no longer remember they were once gasses. Now they are only rain and have no memory of an earlier time.
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Thinking Quotes
Think of the actual physical elements that compose our bodies: we are 98 percent hydrogen and oxygen and carbon. That's table sugar. You are made of the same stuff as table sugar. Just a couple of tiny differences here and there and look what happened to the sugar: it can stand upright and send tweets.
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Allow Quotes
NASA is interested in what conditions to look for on other planets that might lead to the arrival of life. What are the processes? Using earth as our most detailed study site, what are the necessary steps a planet needs to go through to enable complex animal life to arise? If oxygen is the metabolic pathway, then we need to know what conditions have to allow for that to happen. The geologic record provides us with a record of these steps that occurred on Earth.