This question points up some key misconceptions about what a vacuum is.
So you put a straw in your cup of water. If you look down the straw or could look through it, you would see that the level of water inside and outside the straw are exactly the same. This is because the atmosphere is pushing down on the water inside the straw, and it is pushing down equally hard on the water outside the straw. So the pressures are equal.
When you suck on the straw, you are decreasing the pressure in your mouth and lowering the pressure of the air in the top of the straw. When that happens, the force of the atmosphere pushing on the water in the glass is higher than the force of gas inside the straw. The atmosphere forces the liquid up the straw into your mouth. So, in essence, you ARE NOT sucking the liquid into your mouth, the atmosphere is pushing it there.
This is easily proved by an experiment. Try drinking water from a straw that is more than 20 meters tall. It won't work. At around 20 meters, the massive column of water inside the straw would be pulled down by gravity, with a force greater than the upward force caused by the atmosphere. Even if you completely evacuate the straw with a high-powered pump the water won't make it up the straw. This is why you can't pump water out of a well that is more than 20 meters deep in the ground. Anything deeper than that and you need to use a compressor to pump air at high pressure down into the well, to force the water out (essentially make the upward pressure higher than the atmosphere alone provides), or revert to the tried and true method using buckets.
Of course, a similar principle applies with underground or artesian wells. The water there is already under greater pressure and will flow to the surface if given a path.
This is all thanks to Air pressure and water pressure. Lets say that you are drinking water from a glass with the help of a straw. When you suck at the straw, you are essentially drawing air out of the straw. This decreases air pressure which was in the straw right above the level of the water. In the mean time the air pressure around your glass of water is constantly pushing the drink level to go down. And the water pressure of your drink is pushing the water level to go up. Since you just helped decrease the air pressure in the straw, the water finds an outlet and thus goes up the straw till it reaches your mouth.
If you mean a drinking straw, the level of liquid inside the straw (which is open ended) will be at the same level as the rest of the liquid. If the top of the straw is sealed, and the straw is dipped into the liquid, the level will rise until the trapped air inside the straw stops the level rising to match the level in the rest of the vessel.
Property of gases to create positive and negative pressure.
well liquid comes up and you swallow it. Although, studies have shown that drinking out of a straw causes more wrinkles if that's what you meant by the question.
It would be more difficult to drink with a straw on the top of a mountain because of low atmospheric pressure. You would not have as much pressure to push the drink up the straw.
The power of suction is what is demonstrated by water moving up a straw. When you suck through a straw, the water has nowhere to go but up.
you can . but be carefull
It may harken back to the day when the Israelistes were slaves for the Pharoh and he increased their quota of bricks to make and withheld the important component of straw. I imagine the slaves had to procure the necessary straw through a straw purchase, since they could not purchase the straw for making the bricks. That is my guess until a better one comes along.
It is all to do with air pressure. We lower the air pressure inside the straw by sucking the air out of it, atmospheric pressure which is pushing down on the surface of the drink literally forces it up the straw into our mouth.
Nope it is not possible. I don't know why but, no you cannot drink through a straw that has a hole in it.
I personally think you drink more when using a straw. I drink twice as much with a straw than tipping the cup.
we can not drink cold drink through straw at moon because moon has no atmosphere to exert pressure on liquid
no
no
When the oxygen from your body suck air through mouth and makes the drink go through the straw and into your mouth. If you don't breath then you won't suck and get as much of the drink than you did before.
when you drink through a straw you remove some of the air in the straw. Because there is less air pressure of the straw is reduced. But the atmospheric pressure on the surface of the liquid.
because there is a gap throgh it therefore liquid can pass through it (:
anything really
Stick a straw through the metal rapper and sip
I was told not to drink from a straw for 24 hours. You should be fine now.
try using a straw