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water reflecting in raindrop and rainbow brightness
Author:
Chris Woodward
Drag the point on the slider to change position of incoming light ray. Angle of reflection and brightness of outgoing ray are shown.
GeoGebra
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van Aubel's Theorem
Bottema's Theorem
Slope of a Straight Line: Run and Rise
"Compressed" Astroid as Envelope
History of Maths
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Pythag Proof 2
Phase difference
Pentagram
الزاوية الخارجية لمثلث
ATHENA_OLINGAY_3
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Cone
Bar Chart or Bar Graph
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Surface
Geometric Mean