Crookes Radiometer Handmade Solar Power Glass Windmill with 4 Spinning Vanes Desk Toys for Home Office Decoration Gift Detecting Sunlight & Science Education(White)

$53.55

$19.81Save 63%

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[Creative Decoration] Place in the sun light, receiving the energy of light, the windmill blades dance lightly. The more light shine on the globe the faster the vanes rotate.
[Elaborate Handiwork] High borosilicate glass handicraft, made of glass,so it is fragile. The solar radiometer may fall off slightly, which is normal.
[Novelty Gift] The two sides of the windmill are black and white respectively, which symbolizes black-winged angel and white-winged angel, combining the two into one, driving the windmill to rotate and bringing good luck. The best holiday gift to the one who have everything.
[Best Teaching Tool] A good physics teaching, This physical and technical miracle shows you in a clear way how sunlight is converted to energy. Develop childrens intelligence and creativity and arouse desire to explore.
[Unique Attractions] Beautiful design suitable for decorating homes, weddings, offices, classrooms and parties.