Chapter 3-univese as we know it

Chapter 3-univese as we know it - Chapter 3 Earth, Moon,...

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Chapter 3 Earth, Moon, and Sky 3.1.1 Locating Places on the Earth • North, South, East, and West •Equator • Prime Meridian of longitude • Latitude – the number of degrees of arc away from the equator • Longitude the number of degrees of arc along the equator from the meridian passing through Greenwich to the one passing from the point of interest.
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3.1.2 Locating Places in the Sky • declination - on the celestial sphere is measured the same way that latitude is measured on the sphere of the Earth: from the celestial equator toward the north (positive) or south (negative). • right ascension - is like longitude, except that instead of Greenwich, its arbitrarily chosen point where we start counting is the vernal equinox.
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3.1.3 The Turning Earth Foucault Pendulum – Since 17 th century it was generally accepted that Earth rotates, but not until the 19 th century this was proven unambiguously.
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3.2 The Seasons • At Earth's midlatitudes there is a significant variations in the heat we receive from the Sun
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Chapter 3-univese as we know it - Chapter 3 Earth, Moon,...

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