Crookes Radiometer

Item 8224-00


This product, also known as a light mill, consists of a set of vanes. Each vane is shiny on one side, blackened on the other, and mounted on a spindle in an evacuated glass bulb. When exposed to the sun or other intense light, the vanes begin to rotate. By studying the rotation intensity, students can measure electromagnetic radiation and witness an eye-caching demonstration simultaneously.
• Comes with a Teacher’s Guide
• Box size: 5 ft L x 3.25 ft W x 3.25 ft H

Weight N/A
Teacher's Guide
Student Handout
  • AmSci Exclusive
  • Teacher's Guide Included
  • Handout Included

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