3-11 years

Saturn: lord of the rings 2

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Saturn: lord of the rings 1

Icosa planet

Dust in the universe

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Observing the Moon

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Shadow play

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The Earth is round

Solar system model demo

Modelling the night sky

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Making a rainbow

Magic levitation

Demonstrating light pollution

Center of mass demostration

Spicy Solar system

Earth a ball

Black hole

As the world turns

The Sun in the local horizon

Solar motion demostrator

How to build a big plywood demonstrator

Projection camera for eclipse viewing

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How to make a Solar filter

Refractory telescope

Telescope basis 2

Telescope basis