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Beyond the Solar System: Exploring Galaxies, Black Holes, by Mary Kay Carson

By Mary Kay Carson

Winner of:
NSTA-CBC striking technological know-how exchange Books for college students K-12 for 2014 list

Humans have gazed into the evening sky for millions of years and questioned, What are these twinkling lighting fixtures? notwithstanding the sunlight, moon, and planets moved around the history of stars, the celebs themselves seemed immovable, endlessly mounted in constellations. in basic terms while astronomers begun taking a better glance did someone detect what a desirable, ever-changing universe lies past our sun system—red sizeable and white dwarf stars, spiral galaxies, wispy nebulae, black holes, and masses more.

In Beyond the sunlight System, writer Mary Kay Carson lines the evolution of humankind’s astronomical wisdom, from the conclusion that we aren't on the heart of the universe to fresh telescopic evidence of planets orbiting stars open air our sun process. as well as its enticing heritage, this publication includes 21 hands-on tasks to extra discover the themes mentioned. Readers will construct a third-dimensional illustration of the constellation Orion, version the warping of space-time because of a black gap, see how the universe expands utilizing an inflating balloon, and build a reflecting telescope out of a make-up replicate and a magnifying glass. Beyond the sunlight System additionally contains minibiographies of recognized astronomers, a time line of significant medical discoveries, a urged interpreting checklist, a thesaurus of technical phrases, and a listing of sites for additional exploration.

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Extra info for Beyond the Solar System: Exploring Galaxies, Black Holes, Alien Planets, and More; A History with 21 Activities

Sample text

While searching for comets, the astronomer became irritated by objects that looked a bit like faraway comets but weren’t. So he listed them all in a catalog so others wouldn’t confuse them with comets. His their brightness, called variable stars. It was more evidence that the star field we see isn’t an unchanging shell around our solar system. Stars came in different kinds. Add to that more than 800 double stars that were charted by the Herschels. These binary stars orbit around each other. It was more proof that stars aren’t stuck in one place, and that Newton’s law of gravity also ruled the distant heavens.

You and the passenger disagree on the distance the light traveled, but not on the speed of light (since it never changes). Speed is distance divided by time—meters divided by seconds in this case. The difference in distance you and the passenger observed the light travel is really a difference in how much time passed. This is Einstein’s theory of relativity. Time is not absolute; it is relative. Both you and the passengers have your own different measure of time. “The distinction between the past, present, and future is only a stubbornly persistent illusion,” said Einstein.

Measure this distance from the concave mirror and mark it in several places around the tube. Connect the marks so there’s a line all the way around the tube. Is your tube a lot longer than this mark? It only needs to be a few inches longer, so you can cut it down if desired. Set it aside. 7. Cut along the entire length of one of the smaller cardboard tubes. Remember, you can also make a tube by rolling up some poster board. 8. Set the magnifying lens on a flat surface. Hold the cut-open tube so one end covers up the magnifying lens.

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