Aktiviteler: Enstrümanlar

How to build a big plywood demonstrator

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Projection camera for eclipse viewing

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How to make a Solar filter

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Refractory telescope

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Telescope basis 2

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Telescope basis

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Shadow puppets

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Safe Sun viewer 2

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Safe Sun viewer 1

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Periscope

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Making a refractor telescope

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Making a reflector telescope

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Building simple Sundials

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