Science Toys That Illustrate Unseen Forces

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    It occurs to me that our forum members might know of examples of this topic that I'm not aware of, and I find these to be very fun. This post comes from a "Magnetism" post in which I mentioned these magnetic spinners that levitate while turning.

    It seems like I remember long ago when I first read Thomas Paine's "Age of Reason" that he mentioned "orrerys" as useful teaching tools, in the same context of how it would be much better if church buildings were schools of science.

    I know there are lots of examples of these besides orrery's and spinning magnetic tops but that's all the time I have for this at the moment. I was going to link to EdmundsScientifics, which used to be my go-to source for these (such as my Crooke's Radiometer), but it looks like Edmunds is long gone....

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