Theorists · Ages 16–18· λ = 470 nm

Light and Optics

Aim lasers into water, glass and diamond, find the angle where light can no longer escape, and slide a candle along a lens to see when its image flips upside down.

2 lessons 25 min 125 XP

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Lessons

1🔆Reflection and refractionLight slows down in glass and water, so it bends. Sometimes it can't get out at all.13 min65 XP
2🔍Lenses and imagesA curved piece of glass bends every ray to a focus, and builds an image of the world.12 min60 XP