See my Question below...?
456434
look at Newton for example.  He may not have had a complete theory, but a lot of it is still valid.  \n\nNewton has been modified by einstein. but this is only in the case of very very massive objects (the size of the sun) and very fast moving objects (.7 c and up or 10^8 m/s, very very very fast).  \n\nBut we do not encouter those things in day to day life... infact you will only encounter that limit in stellar physics and particle physics.  \n\nWhen you build a rocket and launch it you are using purely newtonian mechanics.  \n\nThere have been methodes discoverd that make the calculations easier in many situaitions, but for most situations you will use newtons force laws instead of, say, the lagragian equations of motion.  \n\nThis is the same is all well developed feilds.  \n\n\nAlso a bunch of these non symplified theorys that are technecly correct are just too difficlut for just any one to understand.  If you wish to use lagrages or hamoltons equations of motions you need to know differntial calculus.  and you need to be rather good at it.  on the other hand you can do newton with elementry calculus, or even just algebra.  \n\nAlso just the concepts are difficlult to understand.  We can all imagine electrons traveling around the neucleus like planents around the sun, but it is much more difficlt to explain that electrons are not particals but they are waves and they tend to exist in a reigion of space moving around, but because they exist every where they have no change in momentum, and for this reason they exist with out giving off radiation.  \nBut once you understand the first theory, then you can start to modify the picture and try to understand the way things really are.  Which is actualy impossible because the particals exist in a dimention that we can not see, and act in a way that we can not understand.
836023
The answer is in your other question.
805757
I dont understand your question ?
375894
Thats a good question....I was wondering the same thing!
956080
ok and this is a question?
482919
Look down below!!!!!!!!!!!!!!!!!!!!!
78629
And your question is...?
1187342
What you mean? Im confused by your question, sorry. :-)
694057
Your question is not clear.  Please explain.
277000
duh...please clarify...
253028
good question...me need 2 understand what you're talking about!
418506
Please elaborate on your question
681740
answer this question.
388902
Could you elaborate a bit more on this question?
794569
need more info to answer your question
477256
please explain a little more...
225734
I dont understand your question.