We've found this very stylish new type of Crookes Radiometer which we think would grace any home, office, bunker... It is extremely fragile, stands at around 22cm with a base measuring 7.5cm , and is definitely NOT a toy! Please be aware that it may take a few minutes for it to settle after it has been unpacked: once it has you will see it in action, especially in direct sunlight.
DO NOT HIT IT OR BANG IT ON ANY SURFACES: THERE IS A GOOD CHANCE THAT THE GLASS WILL GET DAMAGED.
The Radiometer was invented by Sir William Crookes in 1873. The glass bulb is evacuated to create a partial vacuum; inside the globe there are 4 vanes and these are mounted on a simple pointed bearing to reduce friction.
Just place it in sunlight or a bright beam from a torch and watch it spin! Plus: you don't need any batteries for it...
PLEASE NOTE: these items are extremely delicate - please take care when removing them from their packaging! In light of this, we have decided that these are for UK sales only as we cannot guarantee their condition on arrival overseas.
New Style Crookes Radiometer - Price includes Royal Mail 1st Class delivery
- Product Code: New style Crookes Radiometer
- Availability: In Stock