The small amount of air in the inverted glass was at atmospheric pressure when the card was placed over the rim of the glass. Therefore it cannot be a vacuuum since no air was exchanged.
What if you squeezed the air out of the tube, like in that last demonstration, at different altitudes. Would you be able to calculate the atmospheric pressure at those altitudes by how much liquid is pushed up into the tube?
So, This basically states that there is no such thing called suction at all... there is negative pressure, that is the creation of vacuum at one end or simply lower the pressure at that end...
The Discovery channel and the History Channel should take a hint from Hila. You don't need fancy visuals and unnecessary celebrity cameos to make an informative learning tool.
This man got the wisdom's voice.
The small amount of air in the inverted glass was at atmospheric pressure when the card was placed over the rim of the glass. Therefore it cannot be a vacuuum since no air was exchanged.
My mind was metaphorically blown when I saw that water-glass-paper-trick. That had never crossed my mind, even though afterwards it feels so obvious.
What if you squeezed the air out of the tube, like in that last demonstration, at different altitudes. Would you be able to calculate the atmospheric pressure at those altitudes by how much liquid is pushed up into the tube?
Great explanation! Very easy to understand!
Thank you for making the world a better place @ScienceOnline
I have the same glasses!
So, This basically states that there is no such thing called suction at all... there is negative pressure, that is the creation of vacuum at one end or simply lower the pressure at that end...
Excelent as always.
Nice video
The Discovery channel and the History Channel should take a hint from Hila. You don't need fancy visuals and unnecessary celebrity cameos to make an informative learning tool.
Mindblowing
my intuition is stumbling to grasp it
favorite
proof of God's ingenuity
killing video