NightHawkInLight How to Make a Vacuum Cannon Posted: March 19, 2025 | Last updated: March 19, 2025 To learn how I made the vacuum pump used to operate this cannon, take a look at this video ...

Go back in time with past Blue Peter presenter John Noakes, as he shows you how to make your very own ping pong cannon ball. This video can not be played To play this video you need to enable ...