When a glass is completely filled with water and flipped upside down, the water doesn't fall because atmospheric pressure outside the glass is greater than the pressure inside, creating a pressure difference that holds the water column in place; however, if air enters the glass, this pressure difference is eliminated and the water falls.
Install our extension to search inside any video instantly.
Upside Down Water Won’t Fall? 💧🤯Added:
He fills a glass completely, flips it upside down, and let's go. The water doesn't fall. Gravity is still pulling it down.
So, why isn't it moving? Flipping creates a low-pressure region inside, lower than the air outside. That difference holds the entire water column up.
>> Okay. The moment air sneaks in, it all falls.
Related Videos
Is dark matter real? - Why can't we find it? - physicist explains | Don Lincoln and Lex Fridman
LexClips
1K views•2026-05-30
Nobody Expected This Lava Reaction 🤯 #faits #facts
TendzDora
28K views•2026-05-30
Saptarshi Basu - Spectacular Voyage of Droplets: A Multiscale Journey to Extreme Flow Conditions
DAlembert-SU-CNRS
152 views•2026-06-02
A 6.0 Just Hit Hawaii — And It Came From The Wrong Place
TerraWatchHQ
115 views•2026-06-03
The Split-Second Mistake That Made Bouncing Bettys So Deadly
NoMansLandChannel
253 views•2026-06-02
The Silent Memory of Glass
UnchartedScienceworld
146 views•2026-05-30
The Difference In Charged And Neutral Particles
heavybrainspace
959 views•2026-05-29
A380 vs Every Vehicles Crash Test Challenge | Which One Win?
BeamLap
163 views•2026-05-29
