Free Powerpoint Presentations

Cycles in the Sky
Page
1

DOWNLOAD

PREVIEW

WATCH ALL SLIDES

Slide 1

Cycles in the Sky

Cycles in the Sky

Solar Eclipses

Through Space

and Time

Lou Mayo, NASA/GSFC

Slide 2

Cycles in the Sky

Slide 3

Cycles in the Sky

Slide 4

Cycles in the Sky

Slide 5

Cycles in the Sky

Slide 6

Cycles in the Sky

Slide 7

Cycles in the Sky

Slide 8

Cycles in the Sky

Slide 9

Chinese astrologers wrote of an eclipse occurring over 4000 years ago.

Chinese astrologers wrote of an eclipse occurring over 4000 years ago.

Historians and astronomers believe that this was an eclipse that happened on 22 October 2134 B.C.

Two astrologers at the time, Hsi and Ho, had apparently failed to predict this eclipse, and so were beheaded.

Slide 10

"Nothing can be sworn impossible since Zeus made night during mid-day, hiding the light of the shining Sun." - Archilochus 648 BC

"Nothing can be sworn impossible since Zeus made night during mid-day, hiding the light of the shining Sun." - Archilochus 648 BC

Slide 11

Ancient Meaning

Ancient Meaning

Solar eclipse have been generally explained in one of four ways:

A celestial being, usually a monster, attempts to destroy the Sun

The Sun fights with its lover the Moon

The Sun and the Moon make love and discreetly hide themselves in darkness

The Sun grows angry, sad, sick, or neglectful

Littmann and Willcox, “Totality”

Norse mythology: the wolflike giant Sköll follows the Sun hoping to devour it.

Ancient Egypt: the evil god Set was thought to have leapt into the eye of the Sun god, Horus.

Ancient China: A heavenly dog ate the Sun.

Chippewa Indians shot flaming arrows at the Sun hoping to rekindle the flames.

Slide 12

BASIC ECLIPSE GEOMETRY

BASIC ECLIPSE GEOMETRY

Slide 13

Ancient Meaning

Slide 14

Ancient Meaning

Slide 15

Ancient Meaning

Slide 16

Perigee

Perigee

Apogee

Slide 17

Go to page:
 1  2  3  4 

Contents

Last added presentations

© 2010-2024 powerpoint presentations