srikamaraja;2892409; said:Laws only exist in physics.
In all other scientific disciplines, a Theory is as valid as you can get.
sorry about Mendel. it was late.
False:
Two H atoms and one O atom = water. Chemistry. Law.
srikamaraja;2892409; said:Laws only exist in physics.
In all other scientific disciplines, a Theory is as valid as you can get.
sorry about Mendel. it was late.
FSM;2893022; said:It really is sad that half the population of this country doesn't accept evolution.
Ullopincrate;2893049; said:If you want in here explain how life happened via chemical reaction because that is what evolution is based on. Your interpretation of evolution anyway.
Cohazard;2893284; said:I read the article, but I didn't like the approach that particular chemist took.
This isn't to you but others.... There are problems with all of the ideas we discuss here so don't attack people because you disagree. Cohazard and I seem to be able to talk without throwing slurs.Cohazard;2893284; said:Science knows that all it has is an idea and at least acknowledges that there are problems with those ideas
AgreeCohazard;2893284; said:Sadly, it seems this is where we come to an impass in this informal debate/discussion. This is where the extent of current scientific knowledges comes to, and with more reseach and data collected, we will be able to pick up where we left off.
Cohazard;2893284; said:an eye out for artificial biology....
If you wanted to keep going, we could now change the subject to the birth of stars, and the kepplar mission to find 'earth-like' planets which may sustain life equal to that found on our planet.
I'm afraid that is another forefront of research, but I am curious as to what the implications will be if we do find life outside of Earth.

Everything becomes clear if you assign their proper meanings to words like "theory", "law" etc. in a scientific context. In particular "theory" is not an insult (as in the silly saying "it's just a theory"). A theory is simply the most elaborate form of consistent scientific knowledge not yet disproved by experiment. In experimental sciences, a theory can never be "proved", it can only be "disproved" by experiment. This is precisely was makes a theory scientific. A statement that cannot be disproved by experiment may still be highly respectable but it's simply not part of any experimental science (it could be mathematics, philosophy or religion, but it's not physics). Now that we have the basic vocabulary straight, we may discuss gravity itself:
Gravity is a physical phenomenon which is obvious all around us.
As such, it's begging for a scientific theory to describe it accurately and consistently. The rules within a theory are called "laws" and the inverse square law of the Newtonian theory of gravitation does describe gravity extremely well. Loosely stated:
"Two things always attract in direct proportion of their masses and in inverse proportion of the square of the distance between them."
However, the Newtonian theory does not provide the ultimate law for gravity. We do know that General Relativity (GR) provides more accurate experimental predictions in extreme conditions (e.g., a residual discrepancy in the motion of the perihelion of Mercury is not explained by Newtonian theory but is accounted for by GR).
Does this mean Newtonian theory is "wrong"? Of course not. Until we have a "theory of everything" (if such a thing exist) ANY physical theory has its range of applicability where its predictions are accurate at a stated level of precision (stating the precision is VERY important in Science; an experimental prediction is MEANINGLESS if it does not come with a margin for error). The Newtonian theory is darn good at predicting the motion of planets within the Solar System to many decimal places... That's all we ask of it and that's what makes it so valuable.
Even General Relativity is certainly NOT the ultimate theory of gravitation. We know that much because GR is a "classical" theory, as opposed to a "quantum" theory. So, GR is not mathematically compatible with quantum phenomena which become obvious at very small scales...
Science is just a succession of better and better approximations. This is what makes it nice and exciting. If you were to insist at all times on "the whole truth and nothing but the truth" in a scientific context, you'd never be able to make any meaningful statement (unless accompanied by the relevant "margin for error"). As a consistent body of knowledge, each theory allows you to make such statements freely, knowing simply that the validity of your discourse is only restricted by the general conditions of applicability of a particular theory. Without such a framework, scientific discourse would be crippled into utter uselessness...
Ullopincrate;2893358; said:I didn't like the approach of a few things but I talked about them. But that's cool.
With the exception of birth of stars which would lead straight back to the Big Bang Theory, I wouldn't mind talking about these things too but there is even more unknown (at least to me) in these areas but I think they are all connected. I think the idea of an earth like planet is entirely possible. Or should is say "I want to believe" (nod to X-Files woot!!) I have been a star gazer all of my life. An amateur (extreme amateur) astronomer. The sky absolutely puts me in awe... What's out there ...... It's overwhelming.![]()