You may recall a few weeks ago I intimated that I was designing a telescope. Turned out that fascination in CDT, although good grounds for marking me a misfit at school, wasn't entirely wasted!
First I took the inside of a kitchen roll and the inside of a roll of tin foil. Then cut slits of about 2 cm around one end of each.
If you liked this, why not also try: Red Bottle Rocket and
Red Bottle Rocket - Part 2
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No Fun Mum
Children's Picture Book Writer (in waiting) and Expert in Pre-School Conflict Resolution!