2006-08-19 07:24:21 · 11 answers · asked by Anonymous in Science & Mathematics ➔ Physics
I know you're thinking that "perfect vacuum" is empty space with absolutely nothing in it. The problem is that there is no such thing. Vacuum will always have something in it. This has to do with Heisenberg's Uncertainty Principle. Given small enough distance scale, and short enough time scale, particle and anti-particle pairs are created and annihilated continuously. Spacetime itself is in constant upheaval, warping and twisting like the constant waving motion of the surface of the ocean.
So there is no such thing as the perfect vacuum, just vacuum.
2006-08-19 07:41:09 · answer #1 · answered by PhysicsDude 7 · 0⤊ 0⤋
All the answers so far given stress that there is no such thing as a perfect vacuum. It is certainly true on or near the earth but what's there all over the deep outer space where it is said there are only five atoms in a cubic metre of space. If there is dark matter does.it permeate the entire space? If not then there must be a kind of perfect vacuum.
2006-08-19 07:50:58 · answer #2 · answered by rabi k 2 · 1⤊ 0⤋
there is some thong 'called' a perfect vacuum. As far as we know, it can not actually exist. PhysicsDude is wrong about the Heisenberg Uncertainly Principle preventing a vacuum. We can't KNOW the exact position and velocity of a particle. That does not prevent a given area from being completely empty, it only prevents us from proving it.
2006-08-19 08:43:12 · answer #3 · answered by STEVEN F 7 · 1⤊ 0⤋
between the subject concerns implied with transforming into a suited vacuum is which you relatively elect a 'vessel' to hold your vacuum. ALL aspects outgas to 3 degree, oxides decompose, etc. so there is your first project, it relatively is, any fabric close on your suited vacuum will introduce greater fabric. In deep area, you have countless pumping velocity, yet no thank you to stay away from fabric from coming decrease back into your suited vacuum, so how do you avert that without introducing aspects? There are additionally neutrinos coming from the solar, so the suited vacuum isn't possibly empty interior the area of stars (or perhaps removed from them - the neutrinos could desire to bypass someplace). So it relies upon how suited you have chose the vacuum to be: 1E-12 torr is sensible in advertisement environments; i think of I keep in mind 1E-18 torr at area holiday altitudes.
2016-12-11 11:34:30 · answer #4 · answered by ? 4 · 0⤊ 0⤋
No.
A perfect vacuum is impossible.
This is a quantum effect, but is not strictly related to the Heisenberg principle. It is a result of the inclusion of special relativity in quantum theory, from which it is inevitable that particle-anti particle pair creation will occur in the vacuum state. The lifetime of these pairs will indeed be governed by the Heisenberg inequality, but it is not their origin.
This effect can be measured as the Casimir Effect.
2006-08-19 12:03:34 · answer #5 · answered by Anonymous · 0⤊ 1⤋
No there is nothing called perfect vaccum&it cannot be also be created.
2006-08-19 07:36:47 · answer #6 · answered by abhishek s 1 · 0⤊ 0⤋
Actually no, you have to just get the one that works best on whatever your floor is made of, if its tile, then you can steam mop it and make it very shiny and good looking.
2006-08-19 07:30:34 · answer #7 · answered by Harshil 2 · 0⤊ 1⤋
A Dyson!
2006-08-23 04:51:21 · answer #8 · answered by ? 2 · 0⤊ 0⤋
yes, its called free space and it has a gaseous pressure of absolute zero. unfortunately it does not exist.
2006-08-19 07:37:52 · answer #9 · answered by Anonymous · 0⤊ 0⤋
Yes! It's between your ears!!
2006-08-19 07:38:55 · answer #10 · answered by Anonymous · 0⤊ 2⤋