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Bird in the Cage
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In this activity about afterimages, learners explore what happens when receptor cells called cones in your eye's retina get tired.
Magnification vs. Resolution: Can you see the flag on the Moon?
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This fun and simple hands-on astronomy activity lets learners explore the difference between telescope magnification and resolution.
Spinning Illusions
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In this activity, learners construct three optical illusion toys to examine how our brains play tricks on what we see.
Ready to Observe: Enhance Your Telescope Experience
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This fun hands-on astronomy activity uses a variety of simple props to help learners understand why they see what they see in a telescope.