Old-ocker Posted December 27, 2020 Posted December 27, 2020 Why is the shadow of an overhead street power line wider than the actual power line.
iNow Posted December 27, 2020 Posted December 27, 2020 When I drop a rock into a puddle, why is the wave that reaches the edge bigger than the rock?
swansont Posted December 27, 2020 Posted December 27, 2020 Geometry. Light from a point or line source expands as you move radially. It’s related to perspective - why things look smaller as they move away.
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