'Summer solstice' diaporamas de présentation

The Sun/ Earth/ Moon Systems

The Sun/ Earth/ Moon Systems. I. Tools of Astronomy. A. Radiation 1. Light is a common term for electromagnetic radiation, which are electric waves. 2. The human eye can only see some wavelengths these are called visible light.

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Seasonal and Daily temperatures

Chapter 3. Seasonal and Daily temperatures. Why the Earth has seasons. Earth revolves in elliptical path around sun every 365 days. Earth rotates counterclockwise or eastward every 24 hours. Earth closest to Sun (147 million km) in January, farthest from Sun (152 million lm) in July.

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The Origin of Modern Astronomy

Note that the following lectures include animations and PowerPoint effects such as fly ins and transitions that require you to be in PowerPoint's Slide Show mode (presentation mode). The Origin of Modern Astronomy. Chapter 4. Guidepost.

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The Origin of Modern Astronomy

Note that the following lectures include animations and PowerPoint effects such as fly ins and transitions that require you to be in PowerPoint's Slide Show mode (presentation mode). The Origin of Modern Astronomy. Chapter 4. Guidepost.

622 views • 52 slides

Observing the Sky

Observing the Sky. The Birth of Astronomy. Pre-Historic Astronomers. Need for Astronomy. Predicting seasons enables Survival Migration Store food (like squirrels) Plant crops in spring (after last frost?) Predict seasonal flooding Knowing time of day enables Survival

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7.6 Graphs of the Sine and Cosine Functions 7.8 Phase shift; Sinusoidal Curve Fitting

7.6 Graphs of the Sine and Cosine Functions 7.8 Phase shift; Sinusoidal Curve Fitting. In these sections, we will study the following topics: The graphs of basic sine and cosine functions The amplitude and period of sine and cosine functions Transformations of sine and cosine functions

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Chapter 2 Discovering the Universe for Yourself

Chapter 2 Discovering the Universe for Yourself. Chapter Outline Patterns in the Night Sky The Reason for Seasons The Moon, Our Constant Companion The Ancient Mystery of the Planets. 2/7/2005 2:55 PM. 2.1 Patterns in the Night Sky. What are constellations?

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1) the Earth orbits the Sun. 2) the Moon orbits the Earth. 3) stars are in constant motion. 4) the Sun orbits the Earth.

Question 1. Constellations appear to move across the sky at night because. 1) the Earth orbits the Sun. 2) the Moon orbits the Earth. 3) stars are in constant motion. 4) the Sun orbits the Earth. 5) the Earth spins on its axis. Question 1. Question 1.

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Eclipses and the Motion of the Moon

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Traditions and Customs in Great Britain

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The Reason for the Seasons by Vickie Morris, Phillips Preparatory School

The Reason for the Seasons by Vickie Morris, Phillips Preparatory School. For this activity, students should highlight the underlined information for their notes. Page 520. What Causes Seasons?.

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ROMANCE AND GERMANIC WORDS IN ENGLISH

ROMANCE AND GERMANIC WORDS IN ENGLISH. by Don L. F. Nilsen and Alleen Pace Nilsen. SPAIN, FRANCE, ITALY AND PORTUGAL (Parra Guinaldo 4). SYSTEMATIC DIFFERENCES.

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Xuepu Zhao

Improving the inverse of Carrington longitude to corresponding central meridian crossing time: A necessary step to estimate the effect of differential rotation. Xuepu Zhao. 1. Introduction. Synoptic charts of the photospheric magnetograms

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The Four Seasons

The Four Seasons. NEXT SLIDE. What are Seasons?.

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Modeling Algebra 11009

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Vernal Equinox, the First Day of Spring

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Brief history of Astronomy

Brief history of Astronomy. Most ancient civilizations observed the heavens and noticed patterns that were used for timekeeping and as a navigational aid. These observations were sometimes used by the ancients for Astrology.

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Daylength

Daylength For sunrise and sunset, ? = 90 ? , so cos? = sin? sin? + cos? cos? cos? becomes cos? = -tan? tan? Daylength = 2 cos -1 (-tan? tan?) What is the daylength at Fairbanks, Alaska (65 ? N, 148 ? W) at the winter solstice? Daylength = 2 cos -1 (-tan(65 ?) tan(-23.5 ? ))

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Reason for the Seasons II

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