- Transparent Solar Power Crookes Radiometer Metal Frame Sun Light Energy Spinning Vanes Glass Windmill Gift Home Desk Decoration

Looks good, well made and spun surprisingly fast in the window.

It was fun to see it turning faster and faster when it got in direct sunlight! Even overcast it twirls a little. It needs direct sun on it, not just near it.

This product is exactly as pictured and described. It's an amazing piece of technology.

This design was exactly what I was looking for, a radiometer with a loop to hang from the ceiling. The first one that showed up had places where the black sides weren't quite covered, and it took a LOT of light to spin. I returned it and tried one more time, and the second one worked just fine. I wish they had an option to buy the radiometer without the stand, though. It was more than I really wanted to pay, and I don't plan on using the stand. That might have saved some money.

Well made and beautiful.

I have an east exposure. Other photometers only or barely spin with direct sunlight shining on them. A good one as this is will spin with lots of forms of light. Including spinning all day on a bright day near the window. I am getting creative using fishing line and making my own hanging trio to put in my window that WILL spin all day. I tried the other hanging trio and returned it promptly. My nephew and his parents are so happy with this and teaching the history of the Solar Photometer.

Looks great and functions as advertised

This is not my first radiometer. This is also not the only radiometer I have. It does look good. Actually looks pretty darn good. It is however not a very good radiometer. It requires by far twice the light of any other radiometer to get it spinning. It is also much slower spinning than any of the other radiometers. The only nice thing I can say about it is it does look nice.

Rotates merrily in the sunlight.

吊るせるタイプはあまり無いので、こちらに決めました。スタンドを取って、天井から真鍮ワイヤで吊り下げています。ガラスの質感も美しく、フォルムもまた美しいので買ってよかったです。

This is such a unique piece. It works well, it doesn’t need direct sunlight and when it is in direct sunlight it spins very fast. Inside the glass hold a vacuum, so I guess it would be fragile.

Bought as a present cannot really comment, but gift was not criticised which was very good considering.

Excellent service