Heavenly Mathematics: Observing the Sun and the Moon from Different Parts of the World - PowerPoint PPT Presentation

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Heavenly Mathematics: Observing the Sun and the Moon from Different Parts of the World

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Heavenly Mathematics: Observing the Sun and the Moon from Different Parts of the ... on the four calendars in use in Singapore: Gregorian, Chinese, Muslim and Indian. ... – PowerPoint PPT presentation

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Title: Heavenly Mathematics: Observing the Sun and the Moon from Different Parts of the World


1
Heavenly Mathematics Observing the Sun and the
Moon from Different Parts of the World
  • A/P Helmer Aslaksen
  • Dept. of Mathematics
  • National University of Singapore
  • aslaksen_at_math.nus.edu.sg
  • www.math.nus.edu.sg/aslaksen/

2
General Education Modules at the National
University of Singapore
  • Heavenly Mathematics Cultural Astronomy
  • Mathematics in Art and Architecture
  • Mathematics in Politics, Poker and Paradoxes

3
Whats the goal of this talk?
  • I learned a lot of fascinating stuff, both
    mathematics and general knowledge that Id love
    to share with you.
  • Share some experiences from teaching these
    classes that may inspire you to offer the classes
    youve always wanted to teach!

4
Where is Singapore?
5
Content of astronomy course
  • Basic astronomy from a hemispherically-correct
    view point.
  • Calendars, with an emphasis on the four calendars
    in use in Singapore Gregorian, Chinese, Muslim
    and Indian.
  • Navigation.

6
Motion of the Sun and the Moon
7
Where does the Sun set?
8
Orbit of the Moon around the Sun
9
The mathematics of the Singapore flag
10
Analemma picture
11
Globe
12
Close-up
13
Eccentricity
14
Why does obliquity matter?
15
Obliquity
16
Combined effect
17
Analemma
18
Rising and setting analemma
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