Quantum theroy Vs. Physics?

I've seen a couple of movies read a couple of articles about it but I was intersted in knowing if the "quantum theory " is contradicting everything I studied about science so far?


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FlyingDutchman
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To stay alive you need to learn every day - you never know

I don't know what you studied in physics, but in general the regular physics you learn on school ar based on Newton's laws and are very suitable for our day to day life.

However when you move to the micro world of particles smaller then an electron, the quantum area, these rules are not longer valid and very interesting things occur - an electron is not longer a particle but a wave but a high probability at a certain place, and many other interesting effects, which for example leads to the thought of developing a quantum computer.

 But the same for the standard physics also happens in the macro world of universes, where bodies reach the speed of light, black holes and other very dense stars. Also here the classical physics does not work and we use the relativity theory here

Physicians are searching for one unified model that combine the quantum world and the big universes. The so called 'string'-theory is a good candidate, but much of it is theory as proving it is hard to do - as we cannot measure easily the quantum world or the universe.

So don't worry about your old physics - but to understand the modern physics, most of it is based on mathimatical models and very abstract.

There are many interesting books on these topics - too many to mention

So don't worry about your knowledge - it is good for day to day life - and read about the micro or macro cosmos interesting books

 
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kavod
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the "quantum theory" is contrast our basic intuition, whose based on the 'old' science(classic physics).
there are 5 thing that are not sit well white your knowledge(classic physics). and they are:

  1. visual  - you cant demonstrate the theory.
  2. causal - there is not reason-result relation like classic physics.
  3. local - the effects(whose particles makes) is immediate, and dont relate to the distance .mean it can be even faster then the speed of light.
  4. self-identity - when couple of particles are the same, we can't relate either of them a unique character. mean both particles are "combine".
  5. objective -  the same particle act different whether we inspect at him or not.

even though, the "quantum theory" are explain a lot of things, and verify things that you know.

anyway everything that you have learn so far is good when you talk on normal scale.  and you remember that  when you talk on tiny scale(particles) you can't talk normal(you have to talk in "quantum theory") .

i hope  you understand the different between quantum theory and classic physics.  and you can conclude from it what contradicts there is between what you studied about science so far(classic physics) and the quantum theory?
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freeknowledge
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I suppose you mean "theory" and not "theroy"  Smile

 Well, I am hardly an expert on that matter, but have a look at:

http://www.spaceandmotion.com/Physics-Quantum-Theory-Mechanics.htm

which might provide some more relevant info.
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orenlv
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Well, Yes and No.If you were as small as an electron (about 3x10^-15 meters) you would definitely experience different physics laws. but as long as you are larger then several angstroms (1 angstrom is 1x10^-9 meters) you do not have to worry.The quantum physics (as implied from the name) is not continuous and the forces applied are different then we are familiar with. The large-scale physics is actually a summation of the quantum physics and seems continuous since the quantum steps are very small. This is similar to high-resolution printing - it looks like a smooth line while it is actually constructed from many small dots, which their size is below our eye resolution.

 
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orenlv
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Well, Yes and No.If you were as small as an electron (about 3x10^-15 meters) you would definitely experience different physics laws. but as long as you are larger then several angstroms (1 angstrom is 1x10^-9 meters) you do not have to worry.The quantum physics (as implied from the name) is not continuous and the forces applied are different then we are familiar with. The large-scale physics is actually a summation of the quantum physics and seems continuous since the quantum steps are very small. This is similar to high-resolution printing - it looks like a smooth line while it is actually constructed from many small dots, which their size is below our eye resolution.

Oren
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