28 reputation
3
bio website
location
age
visits member for 10 months
seen Jun 13 '13 at 5:21

Jan
18
awarded  Popular Question
Jun
5
awarded  Scholar
Jun
5
accepted Atmospheric pressure experiment using a cup with a fluid to hold a glass plate
Jun
3
comment Atmospheric pressure experiment using a cup with a fluid to hold a glass plate
yes.you are right. But I think the bottle provide the pressure.
Jun
2
comment Atmospheric pressure experiment using a cup with a fluid to hold a glass plate
I think the atmosphere pressure is the reason why water is liquid. In this system, gravity is the first power. and gravity make a atmosphere pressure become true. and atmosphere pressure make water become liquid. So if we want to do this experiment in vacuum, it can't succeed .because I guess all of the substance will blowout except solid.
Jun
1
comment Atmospheric pressure experiment using a cup with a fluid to hold a glass plate
Your answer has explained many things. and I also think the "small leak through the contact line" is the key in this experiment. So, the atmosphere pressure is the power to hold the plate, but only in the situation of liquid like water.
Jun
1
comment Atmospheric pressure experiment using a cup with a fluid to hold a glass plate
and for A2, how the water outside sip into the bottle? Is there a gap between board and bottle ?
Jun
1
comment Atmospheric pressure experiment using a cup with a fluid to hold a glass plate
for A1, I have one puzzled, what's the meaning of "For lower density liquid the height would be larger". It's the same bottle,so the height is the same.
Jun
1
awarded  Student
Jun
1
asked Atmospheric pressure experiment using a cup with a fluid to hold a glass plate