Did this in 3rd grade, itbindeed does work, the reason this guy failed is because the system requires it air tightness. You can see air coming in through some gaps in bottom tube. Seal the leaks and the system will work.
Even youtubers are also lieing to people and posted fake videos to increase subscribers and channel, I ll suddenly unsubscribe all fake channels and videos. Tom and Jerry channel is the only one channel to subscribe.😢😢😢