21st Century Astronomy: The Solar System (Fourth Edition) (Vol. 1)
Laura Kay, Stacy Palen
Language: English
Pages: 592
ISBN: 0393920585
Format: PDF / Kindle (mobi) / ePub
Teaches students to think like scientists.
Authors Laura Kay and Stacy Palen have developed pedagogy that helps students understand the process of science, and how physical principles are used to discover the origins of the universe. The authors emphasize how we know what we know in the figures, text, and end-of-chapter material.
Alpha Centauri: Unveiling the Secrets of Our Nearest Stellar Neighbor (Astronomers' Universe)
Galileo in Rome: The Rise and Fall of a Troublesome Genius
Bad Astronomy: Misconceptions and Misuses Revealed, from Astrology to the Moon Landing "Hoax"
And the light from the object gets bluer. Here is our second point about thermal radiation: hotter means bluer. You might have used a Bunsen burner in a chemistry class. As you heated up a piece of metal, you saw the metal glow—first a dull red, then orange, then yellow. The hotter the metal became, the more the highly energetic blue photons became mixed with the less energetic red photons, and the whiter and more intense the light became. The color of the light shifted from red toward blue,.
Islamic New Year and all other holidays occur 11 days earlier in each solar year. In the Islamic calendar, a holiday may fall in the winter in some years, and then a few years later it will have moved back to autumn. The civil calendar we use today is known as the Gregorian calendar and is based on the tropical year, which is 365.242 solar days long. A solar day is the 24-hour period of Earth’s rotation that brings the Sun back to the same local meridian. (This is in contrast to the sidereal day,.
Process of Science Figures, Unanswered Questions boxes, and expanded Origins sections. ƀLJ (LJ "LJ "*. ,LJ1 LJ"0 LJ ")- (LJ)( LJ #- )0 ,3LJ( LJ*,)0# LJLJ0#-/&LJ representation of the process used to make that discovery in one of the new Process of Science figures. Because science is not a tidy process, CONVERGING LINES OF INQUIRY The question: Why is the Solar System a disk, with all planets orbiting in the same direction? Mathematicians suggest the nebular hypothesis: a collapsing rotating cloud.
................................................................................................................ 8 What happens when you make it larger? ................................................................................................................ ................................................................................................................ 9 What do these results tell you about the dependence of the period on the semimajor axis?.
Was farther from Jupiter because of the time needed for light to travel the extra distance between the two planets (Figure 5.1). Over the course of Earth’s yearly trip around the Sun, the distance between Earth and Jupiter changes by 2 astronomical units (AU), which is about 3 × 1011 meters. The speed of light equals this distance divided by Rømer’s 16.7-minute delay, or about 3 × 108 meters per second (m/s). The value that Rømer actually announced in 1676 was a bit on the low side—2.25 × 108.