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Sample illusion
Author:
Dave Van Leeuwen
When segments are shown, the impression is that of rotation. When segments are turned off and curve is shown, the same motion gives a very different impression.
GeoGebra
New Resources
רישום חופשי
seo tool
Average Distance
Drunk Parabola
Circles - Relative Positions
Discover Resources
LSpivey-Quadratics
Eye Tracking
Parabola--Distance with Focus and Directrix
angle
Video 2
Discover Topics
Pie Chart or Circle Chart
Planes
Right Triangles
Incircle or Inscribed Circle
Mode