New PDF release: The Handy Science Answer Book (The Handy Answer Book Series)

By Science and Technology Department Carnegie Library of Pittsburgh

ISBN-10: 1578591406

ISBN-13: 9781578591404

ISBN-10: 1578592844

ISBN-13: 9781578592845

Providing a enjoyable and academic approach to discover the wonders of the realm of technology this advisor collects greater than 1,300 the main frequently asked and engaging questions in a succinct, enjoyable, and academic demeanour. young children and adults alike will get pleasure from uncovering a few of life’s maximum mysteries, together with how does a fax computing device works, which colour automobile is the most secure, the variation among female and male lobsters, and what urban have the checklist for many snowstorm. With ordinary writing, greater than a hundred photos, and dozens of graphs and tables, this guidebook is the appropriate reference for fixing the mysteries of technology.

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9° 29° 118° Uranus Neptune Pluto Mars Mercury Earth 7° Pluto Venus 17° Uranus Saturn Jupiter Neptune Schematic of the present-day solar system. How old is the universe? Recent data collected by the Hubble Space Telescope suggests that the universe may only be eight billion years old. This contradicts the previous belief the universe was somewhere between 13 billion and 20 billion years old. The earlier figure was derived from the concept that the universe has been expanding at the same rate since its birth at the Big Bang.

During this contraction, energy is released and the outer layers of the star are pushed out. These layers are large and cool; the star is now a red giant. A star with more than twice the mass of the sun will continue to expand, becoming a supergiant. At that point, it may blow up in an explosion called a supernova. After a supernova, the remaining material of the star’s core may be so compressed that the electrons and protons become neutrons. 4 to four times the mass of the sun can be compressed into a neutron star only about 12 miles (20 kilometers) across.

Dmitry Ivanovich Mendeleyev, the Russian chemist renowned for developing the periodic table of elements. What was the first element to be discovered? Phosphorus was first discovered by German chemist Hennig Brand in 1669 when he extracted a waxy white substance from urine that glowed in the dark. But Brand did not publish his findings. In 1680, phosphorus was rediscovered by the English chemist Robert Boyle. What is the sweetest chemical compound? The sweetest chemical compound is sucronic acid.

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The Handy Science Answer Book (The Handy Answer Book Series) by Science and Technology Department Carnegie Library of Pittsburgh

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