I was going to fill a glass with water and while doing so, I lost attention until it reached a point where it was more than the capacity the glass could take and it didn’t overflow, I stopped it just in time to witness it going above the glass but not spilling. This has made me so confused and I thought I was seeing things. I’m sure there’s some science behind it but googling it did not give me an answer I could understand.
(I’m adding the “physics” post flair to this because I think this comes under physics. I may be very wrong though. Please let me know if I am.)
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Water is fairly strongly attracted to itself. This is called “cohesion”.
https://en.wikipedia.org/wiki/Cohesion_(chemistry)
Basically, when you overfill a cup there’s a small time where the water holding onto itself is stronger than gravity trying to flatten it and make it spill out of the cup.
https://en.wikipedia.org/wiki/Surface_tension
The force that makes water molecules want to stick together is called the “Van Der Waals” force.
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