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Notes on Physics

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The Precession - Rotation of Earth's Axis
This section describes the precession, rotation of Earth's axis. 2019-06-30, 284👍, 2💬

💬 2019-06-30 Herong: Prof. Karwasz, this picture is not copyrighted by me. It was published by an anonymous author.

💬 2019-06-29 Grzegorz Karwasz: Dear Dr Herong Yang, I kindly ask permission to use your picture of Earh's axis precession in my book "Science and Faith". Prof....

Chinese Astrology
This section describes what is Chinese astrology. 2017-12-04, 814👍, 2💬

💬 2017-12-04 Haritha: This is a good website

💬 2017-01-27 Mikage: Meaningful comments

The Celestial Meridian and Zenith
This section describes the celestial meridian and zenith. 2017-11-13, 764👍, 1💬

💬 2017-11-13 Kudz: Very Helpful!

The Hunter - Orion - Constellation
This section describes the Orion constellation also called The Hunter. 2017-06-12, 379👍, 1💬

💬 2017-06-12 altayeb alradi الطيب الر: it is the easiest constelatiion that can be seen at evening in sudan from jan to april i think there is a great secrets beyond o...

What Is Western Zodiac
This section describes what is Western zodiac. 2017-01-12, 482👍, 1💬

💬 2017-01-12 Jimmy Neutron: not the best page

Gemini - The Twins, The Third Zodiac Sign
This section describes the third zodiac sign, Gemini, the Twins. 2017-01-08, 1331👍, 2💬

💬 2017-01-08 Herong: Even, Thanks for the comment!

💬 2017-01-04 Evan: It is nice to see a site that attends to both aspects/systems tropical/side-realism. according to the mathmatical anti-spam fiel...

Horoscope Moon and Other Planet Signs
This section provides introduction of planet zodiac signs: the Moon sign, the Mercury sign, the Venue sign, the Mars sign, and more. 2016-01-23, 378👍, 1💬

💬 2016-01-23 Troy: Hi

Chinese Zodiac Animal Signs
This chapter provide some details of Chinese zodiac animal signs. 2015-10-22, 168👍, 1💬

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