hardware knobs
g. w. schleidt l105 b 2 . 38 diameter blue sphere on clear tapered stem
the radiometer also known as a light windmill is an instructive physical object which actually demonstrates a scientific theory namely converting light into energy this theory shows how the radiometer converts light into energy the radiometer will spin 2000 revolutions per minute in warm light such as sunlight and well lit rooms they will not spin using fluorescent lights these radiometers are truly one of a kind sku gwsch190
g.w. schleidt