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Conceptual Physics

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Even before history began, people must already have noticed certain facts about the sky. The sun and moon both rise in the east and set in the west. Another fact that can be settled to a fair degree of accuracy using the naked eye is that the apparent sizes of the sun
and moon don’t change noticeably. (There is an optical illusion that makes the moon appear bigger when it’s near the horizon, but you can easily verify that it’s nothing more than an illusion by checking
its angular size against some standard, such as your pinkie held at arm’s length.) If the sun and moon were varying their distances from us, they would appear to get bigger and smaller, and since they don’t appear to change in size, it appears, at least approximately,
that they always stay at the same distance from us.

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Detail Information

Series Title

-

Call Number

530 CRO c

Publisher

: LibreTexts., 2018

Collation

-

Language

English

ISBN/ISSN

-

Classification

530

Content Type

text

Media Type

computer

Carrier Type

online resource

Edition

-

Subject(s)

Physics

Specific Detail Info

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Statement of Responsibility

Benjamin Crowell

Other Information

Cataloger

Khusnun

Source

-

Validator

maya

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