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Not long ago, it was difficult to produce photographs of tiny creatures with every part in focus. That’s because the lenses that are excellent at magnifying tiny subjects produce a narrow depth of field.

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Be they not dreames of humane vanity,[…]to make of our knowne earth a bright shining planet [translating astre]?

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He loved watching the stars in the sky with her.

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Creating a complete map of the human connectome would therefore be a monumental milestone but not the end of the journey to understanding how our brains work. The achievement will transform neuroscience and serve as the starting point for asking questions we could not otherwise have answered, just as having the human genome has made it possible to ask new questions about cellular and molecular systems.

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The arrival of the new prefixes means the Earth can now be said to weigh six ronnagrams, and Jupiter about two quettagrams.

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The derivative of x² is 2x; if f(x)#61;x², then f'(x)#61;2x

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The stargazer observed the moons of Jupiter for over a year.

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Though from different social, economic, and political worlds, the astronauts and cosmonauts had much in common, both as professionals and human beings.

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conduct an experiment

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The atomic weight of krypton would accordingly be 81.62; the mean of former determinations is 81.28. This is in accordance with its position in the periodic table, which lies between bromine, 80, and rubidium, 85.

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A car racing in a circle may retain the same speed while continually changing its velocity.

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Energy has seldom been found where we need it when we want it. Ancient nomads, wishing to ward off the evening chill and enjoy a meal around a campfire, had to collect wood and then spend time and effort coaxing the heat of friction out from between sticks to kindle a flame.

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Number, we define, to be, a certayne Mathematicall Sũme, of Vnits. [Note the worde, Vnit, to expresse the Greke Monas, & not Vnitie: as we haue all, commonly, till now, vsed.]

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The habits of the second nymphal stage are likewise similar to those of the larva stage.

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So may thy cheekes red outweare scarlet dye, / And their white, whitenesse of the Galaxie [...].

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What was seen from the top down, as a large environment with many difficult trade-offs, is instead seen from the bottom up--as 10 million microenvironments, each to be regulated in its own right. It is this inversion of perspective that distinguishes microgovernment from other kinds of regulation, and that accounts for its often-bizarre behavior.

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Economics is a messy discipline: too fluid to be a science, too rigorous to be an art. Perhaps it is fitting that economists’ most-used metric, gross domestic product (GDP), is a tangle too. GDP measures the total value of output in an economic territory. Its apparent simplicity explains why it is scrutinised down to tenths of a percentage point every month.

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We humans and other complex animals are full of microbes, gajillions of them. People have so many that microbe cells living in our bodies outnumber our own vastly.

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The spaceships look like a row of threshers harvesting a field of wheat; the thickness in the direction of motion is only about 10 cells.

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"Acoustics, then, or the science of sound, is a very consderable branch of physics, and one which has been cultivated from the earliest ages.

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The Moon's orbit around the Earth takes nearly one month to complete.