Air Pressure Demo (Air has mass)
Chris Bergmann
0:00 / 0:00
Air Pressure Demo (Air has mass)
280 826 просмотров · 16 лет назад
Chris Bergmann
1,34 тыс. подписчиков
280 826 просмотров · 16 лет назад
Students feel the affects of air and air pressure first hand!
