Large Transparent Solar Power Crookes Radiometer Sun Light Energy Spinning Vanes Windmill Gift Home

Give your 12-13 year old something to think about... by challenging them with science, then turn the table by asking them why and how!! Great quality product very sensitive to light, works inside on a bright sunny day. Recommended..

Wanted one for years - this is the best ive found.

works great

Great novelty and conversation starter. It came in perfect condition.

The black coating is chipped all over the place. Warned in product description, but still kinda lame for an ornate piece. As it says the thing works like a charm, chipped black coating or no, so its fine. I'm curious why a more robust coating hasn't been found for these.

I bought this to replace one that I'd had for many years, which I managed to knock off its table and break. This one is taller, so it catches the window light more easily and therefore rotates more often.

The vanes came bent and chipped

I was able to get mine to spin with a 9 watt led bulb. Very nice item. I must say though it was much smaller than I expected, but it is in fact the dimensions described. Make sure you get the large else you're going to be looking at something microscopic.