The SCIS Whirlybird Revisited

An Improved Whirlybird

“…Boylan and Hill (1986) outlined some of the teaching problems associated with the original SCIS whirlybird.…”

“…The Science Curriculum Improvement Study (SCIS) Unit, Subsystems and Variables, makes use of a whirlybird system which has proved to be of enduring interest to students. Boylan and Hill (1986) outlined some of the teaching problems associated with the original SCIS whirlybird.…”

“…A smear of petroleum wax can be used to lubricate the bearing. The modified shaft can be used to support the circular disk described by Boylan and Hill (1986) and can be fabricated and fitted by any skilled metal worker.…”