PIRA CLASSIFICATION: 1C20.10
DESCRIPTION: Drop a penny and feather in a tube, first full of air and then evacuated.
SETUP TIME: ~15 min
DEMONSTRATION SHOWCASE:
Last Updated June 22, 2020
PIRA CLASSIFICATION: 1C20.10
DESCRIPTION: Drop a penny and feather in a tube, first full of air and then evacuated.
SETUP TIME: ~15 min
DEMONSTRATION SHOWCASE:
Last Updated June 22, 2020