0:40An animation to explain the (apparent) retrograde motion of Mars, using actual 2020 planet positionsInterplanetary52.1K viewsView & Download
2:27Tracking the apparent motion of the sun with a curtain.Lawrence Whitfield151 viewsView & Download
0:41Apparent motion of the stars as seen from Earth, annual parallaxKaiserScience320 viewsView & Download
1:47Apparent Motion and Reichardt Detectors - Perception Demo DayCaroline Taylor419 viewsView & Download
