By Mary Kay Carson
NSTA-CBC awesome technology alternate Books for college kids K-12 for 2014 list
Humans have gazed into the evening sky for hundreds of thousands of years and questioned, What are these twinkling lighting fixtures? even though the solar, moon, and planets moved around the history of stars, the celebs themselves seemed immovable, ceaselessly fastened in constellations. purely whilst astronomers begun taking a more in-depth glance did somebody become aware of 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 facts of planets orbiting stars outdoors our sun process. as well as its attractive historical past, this booklet comprises 21 hands-on initiatives to additional 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 reflect and a magnifying glass. Beyond the sunlight System additionally contains minibiographies of recognized astronomers, a time line of significant clinical discoveries, a instructed analyzing record, a word list of technical phrases, and a listing of web sites for additional exploration.
Read or Download Beyond the Solar System: Exploring Galaxies, Black Holes, Alien Planets, and More; A History with 21 Activities PDF
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Extra info for Beyond the Solar System: Exploring Galaxies, Black Holes, Alien Planets, and More; A History with 21 Activities
The argument in Huggins’s day was whether or not all nebulae were out-offocus groups of stars. Or were some nebulae actually something else entirely? Something made of a mysterious luminous matter? As Huggins looked at the nebula in Draco through his spectroscope, he knew that a group of stars would show the rainbow- like spectra similar to sunlight. But this is not what he saw. “No such spectrum as I expected! ” he wrote. Huggins wondered if his instruments were working right. “The thought was scarcely more than momentary; then the true interpretation flashed upon me.
It’s the different chemical ingredients that give fireworks their many colors. A chemical element produces light of a specific wavelength when it’s heated, creating a color. Sodium burns yellow, burning copper has a green flame, and potassium is purple. Knowing what pattern the spectrum of each element creates turns out to be useful. Spectroscopy today is still used to find out what’s in all kinds of unknown substances. ) Spectroscopy also explains those dark Fraunhofer lines in sunlight spectra.
When the Sun was up, Caroline wrote up their findings and William improved their sky gazing tools. Armed with William’s ever-bigger, ever-better telescopes, the sibling astronomers charted thousands of never-before-seen 1700s–1915: unveiling the stars 31 William and Caroline Herschel William Herschel (1738–1822) and Caroline Lucretia Herschel (1750–1848) were brother and sister astronomers, both born in Germany. William Herschel is often considered the founder of modern stellar (star) astronomy.
Beyond the Solar System: Exploring Galaxies, Black Holes, Alien Planets, and More; A History with 21 Activities by Mary Kay Carson