User:Rotational~commonswiki
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I am a septuagenarian retired physicist and mathematician with a keen interest in natural history, cosmogony, backpacking and photography
- Common Sense
- Commons Categories
- Magic words
- Displaying a formula
- Widescreen desktop backgrounds
- External links
- Templates
- Gallery of uploaded images
- Category Help
- Wikimedia Commons Index
- Help:Contents
- List of Galleries
- Maps of South Africa
- Wikipedia:Image_use_policy
- Wikipedia:Naming conventions (fauna)
- Wikipedia:Naming conventions (flora)
- Wikipedia:Manual of Style