Product
More
Legal
© 2026Daily24.All rights reserved.
Take a balloon and fill it with lots of air. Take another one and fill it with less air. Now connect the two via a valve.
What do you think will happen when you open the valve?
It's kind of funny how you can tell some of them were expecting an odd answer since it's Veritasium asking
that one vsauce video from years ago came in clutch lol
This feels very intuitive if you've ever had to blow up a lot of balloons.
The orange balloon is simply greedy!
As a doctor I knew the answer cause if u study about how the lung stays inflated, and the fact that it has to prevent this exact thing from happening, you'd know about laplace pressure law. And how atelectasis (collapse of lung lobes or sections) in non-obstructive causes, especially in neonates is a failure to produce surfactant.
These are like the veritasium videos that got us all hooked on the channel so many years ago. Glad to see them back
Im really happy i expected that to happen
This experiment is a great way to show how difficult it can be to isolate a variable
I have been taught in school *inside pressure is inversely proportional to radius* so smaller ballon has high pressure. & That's why air moves from smaller balloon to larger balloon
Thats real veritasium
This reminds me of the first veritasium videos where he went out and just asked about gravity or inertia intuitions. you guys should do more of this shorts. love it.
This just goes to show that the solution to any problem in science can be predicted - but ONLY if you know what all of the parts of the equation are! Everyone considered the pressure of the larger balloon - practically nobody considered the elastic structure of a balloon when inflated versus when it was mostly deflated.
It has actually nothing to do with polymer entanglement, but rather with the fact as the ballon inflates and the material stretches its thickness decreases (latex has the largest poisson coefficient of isotropic materials at around 0.5 i.em latex volume is preserved) which in turn conditions load carrying capacity of the ballon which depends of both the thicknesses and young's module. For reference the internal presure that a "membrane" sphere can handle is 2*(thickness)*tension/radius. The quality of Veritasium videos is decreasing at an alarming speed...
Yeah I definitely thought there was going to be Equalization.
This explanation is not complete. The important point is that as the balloon radius (R) increases, the forces grow linearly with (R), whereas the surface area grows as (R^2). Therefore, the pressure is proportional to (R/R^2 = 1/R) (a smaller balloon → higher pressure).
I am glad they're bringing back asking questions to the public format. This was how I discovered original Veritasium.
Dr.Julius Sumner Miller used to say, on allt of his videos, "Them's that haves, Gets" to explain this effect😅
Throwing us all a curve(ature) ball! Nice demonstration.
It makes sense, since it’s harder to inflate a balloon at first, but once it starts expanding it inflates more easily.
The thing that happened was the first thing that came up to my mind but I was still interested in people's opinions on this. Felt even more cool that I got it right after hearing all their guesses and reasonings.