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Why I see a double image of the moon in a window?
Author:
Giovanni Organtini
GeoGebra
Multiple images
This activity has been triggered by a question on X (formerly Twitter) by Joe Milliano
New Resources
Flip Flop
Droste effect draft
Shade a spheric triangle with "surface".
Finding Average Rate of Change of a Function
bearing HK
Discover Resources
Loc Geometric: Mediană de lungime constantă.
Parallel and Perpendicular Lines
Transmisión 1
logic gates
สมการเชิงเส้นตัวแปรเดียว
Discover Topics
Derivative
Similarity Transformation or Similarity
Centroid or Barycenter
Median Value
Differential Calculus