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101 matches found

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How does a siphon work?

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  • Asked by taqimir
  • on 2010-06-19 12:34:00
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Categories: Technology.

Tags: physics, hydraulics.

 

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Could this answer what was before the big bang?

O.K, so the universe stared life as a primeval atom, or a similar object??Well what was that object in?Answer: well... it could be dark matter (or a substance unknown to us...which dark matter is)What if dark matter acted as normal matter, the large 'vacuum' which was 'outside the universe' is actually eternal dark matter and the grouping of this into a central point due to a gravity type force, if not gravity itself, could lead to collisions of dark matter.This in turn could transform energy and may create 'matter' as we know it today. The transformation of dark matter to normal matter could be what we would perceive as an expansion of matter, which could link in with theories of inflation and thus the continued transformation of dark to normal matter could explain why the universe is expanding.Therefore the expanding universe could be a result of a far greater infinite (perhaps) expanse of dark matter.Only a theory, not very well explained or backed up in anyway, but thought I could lay it out on the table for you all to prod and jab at the concepts that could make it work.

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  • Asked by bowyeraj
  • on 2010-06-08 23:11:54
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Categories: Our universe.

Tags: physics, Universe, bigbang, matter, astrophysics, atom.

 

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If I tread on germs, will they die?

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  • Asked by Walrus
  • on 2010-05-22 08:52:41
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Categories: Human Body.

Tags: physics, health, bacteria, child.

 

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Compressing Bose-Einstein Condensates

If you took some incompressable material that takes up, say, exactly 1 liter, and you cooled them to the point where all of the atoms became Bose-Einstein Condensates (sorry if im using the name in a wrong way), what would happen if you compressed the container/forced the condensates into another container with a volume of 1 cup, and then heated the material (so when the waves become atoms again, there is not enough space for all the atoms)? Would the atoms break the container, or become some sort of superimposed atom, or something else?

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Categories: Our universe.

Tags: physics, waves, atoms.

 

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Why do leather and plastic footballs not swerve the same way?

When kicking a leather fooball with the outside of my right foot, the ball will swerve away to the right.  However, when I kick a lighter, plastic ball, with the outside of the same foot, it swerves to the left.  Why the difference?

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Categories: Domestic Science.

Tags: physics.

 

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If everything in the universe stopped moving completely, would time have stopped?

Is time something more than just the way we explain that any movement occurred before or after another? nothing can happen at exactly the same moment so could time just be the order of everything? is it just a product of language that time cannot be explained, since the only way we can describe a progression of events is with vocabulary which is intrinsically linked to time? Would be great if someone has something real to say on this :D

media
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Categories: Our universe.

Tags: physics, time, movement, language, theory, philosophy, absolutezero.

 

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If electromagnetic forces were somehow increased equally, would it take more energy to excite atoms?

Specifically would an object with said increased electromagnetic bonds etc. exhibit appearances of being colder than they actually were due to the increased energy required to excite them?

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Last edited on: 2010-04-26 23:44:29

Categories: Domestic Science.

Tags: physics, temperature, quantumphysics, force, quantum, electromagnetic, Electromagneticfield, excite, bonds.

 

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Is a head-on car crash into a massive concrete wall the same as a head-on crash into another car moving at equal speed?

Assuming ideal conditions, with the two cars meeting perfectly head-on and moving at identical (and opposite) velocities, is the damage to the occupant of the first car indifferent to whether the car hits the immovable concrete wall or whether it hits the on-coming car?

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  • Asked by becorson
  • on 2010-04-22 10:03:22
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Categories: Transport.

Tags: physics.

 

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If you wave one arm around in circles, but keep the other still, does it mean the first arm is... younger, or something?

And how can your arm remain attached to your body, even though you've just moved it in time!? Wouldn't it disappear into the future or something?

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  • Asked by JDWLB
  • on 2010-04-05 22:40:27
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Categories: Our universe.

Tags: physics, relativity.

 

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If a liquid is trapped then cooled below it's freezing point, what happens?

By trapped i mean, for example, enclosed in an otherwise solid metal cube with no air spaces. would it stay a supercooled liquid or become a compacted solid, or some medium in between?

media
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Categories: Our universe.

Tags: physics, liquid, matter, solid, Freezing.

 

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