|
Investigating the energy and impulse of an electromagnetic wave
Invented by Sir William Crooke, the vanes in the highly effective radiometer
rotate when exposed to solar radiation.
The cause for this rotation can open up much debate for which students should
be encouraged to develop their own explanations. Some will state that the device
relies upon the difference in absorption of impulse between the black and metal
vanes.
Others may think there is a difference in temperature of the vanes.
This device has been designed with black vanes that absorb electromagnetic
radiation and reflective metal vanes. Students need also remember that black
painted sides get warmer than metallic ones.
Order Code: 4215.20
Specifications
- Size: 10 x 15 cm (dia. x height)
- Weight: approx. 250 g
- Mounted on base
Laws and principles investigated
* Prices exclude VAT & delivery, e & oe |
