Henk Van Hoof - IndexDutch/Nederlands
(Updated: August 22, 2007)
The Southern Skies
An essay on what changes in the positions of stars, the sun and the moon when you travel from the northern to the southern hemisphere.
The Total Solar Eclipse of August 11, 1999
(Only in Dutch)
Index of Inventions & Enigmatic Issues
They have a more or less mathematical, physical or technological content, but are mainly selected on the criterion of everyday applicability.
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