social.mjd.id.au

Love kids # like this. Distinctly remember watching this segment after school and working it out, but it took me an embarrassingly long time just now to re-work it out.



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Ruben friendica
That's such an elegant demonstration of ...errr refraction?
Ruben friendica
I think I'd have enjoyed Yhe Curiosity Show. As a kid I quite liked Johnny Ball in Think of a Number: m.youtube.com/watch?v=gvN6OwqFMuU