Loading the content... Loading depends on your connection speed!

« Return to Previous Page

Crooke’s Radiomete (TH-D-CR)

Crooke’s Radiomete (TH-D-CR)



Demonstrates absorption of radiation by black surface vs. reflective (white) surface.

LAB EQUIPMENT

1.  Flashlight
2.  Crooke’s radiometer
3.  Spray component cooler  

•Light hitting vanes causes them to heat up.  Since black absorbs more than white, black side gets warmer.  As moving particles inside radiometer strike black side of vanes they take on more energy than those hitting white  side and ‘kick’ off with more force.  The action-reaction causes black vanes to move away from more active particles.


Category: ,
Tag:
  • Description

    Product Description

    DIRECTIONS

    1.  Direct light onto black surface.
    2.  The vanes will begin to turn with the white faces leading.
    3.  Spray radiometer with component cooler. (Vanes will slow, stop, and reverse)

    •When cooler is sprayed, black radiates away more of its energy than white side, making white the warmer side.  Particles hitting white side take on more energy and ‘kick’ off with more force.  The action-reaction causes white vanes to move away from more active particles.