Solar Power Crookes Radiometer Home Desk Spinning Vanes Decor Blue
Description:
Material: made of glass, purely handmade a high borosilicate glass craftwork
Automatic rotating: It will rotate automatically under the sunlight or strong irradiation.
Wide application: fun science gift desk ornament. It can be used for decoration, decoration, teaching, simple and generous shape, developing creativity.
Educational: Made of glass with an internal vacuum. Through the light can be turned by itself, through the cold wind can also be turned in the opposite direction, a magical science exploration teaching instruments.
Principle: When the light black fan absorbs heat energy, white fan releases heat energy, it can promote the four fans rotation.
Size Chart:
Height:13cm/5.12inch
Ball diameter:7.5cm/2.95inch
base diameter:6.5cm/2.56inch
Package Includes:
1 windmill
Note:
1.This is not infant toy, please take away from children to avoid eating.
2.Please allow slightly errors due to manual measurement and different monitors.
No-AGO-13064862545