In fact, he did so much to make the atomic theory of matter probable that he is popularly regarded as its originator.
From the 1970s to the present day, the "Democratic Peace Theory" has been debated.
This couldn't happen in nature (or, more precisely, could in theory, but is extremely unlikely).
Sure, it isn't as big a force as Democratic Peace Theory or Mutually Assured Poverty.
His doctrine of chances of 1718 greatly expanded the mathematical theory of probability which Bernoulli had started in 1713.
We understand that you can, in theory, save and save and save and then live off the interest of your savings forever.
The second way people choose a nutritional theory is to develop it from their overall social and political understanding of the world.
The individual had no liberties, or at least very few, but in exchange was, in theory, entitled to certain economic rights.
Something akin to getting a date with Miss America: Sure, in theory, possible—but realistically, it ain't gonna happen.
But all in all, the theory seems to hold.
Dalton (1803) gave the atomic theory a quantitative form, and showed that, by means of it, a vast number of the facts of chemistry could be predicted or explained.
If their view is correct, the theory appears to be a remarkable example of deductive reasoning.
To see how this law follows from Dalton's theory let us consider his diagrams for the molecules of water, ethylene and the oxides of carbon.
Otherwise Berthollet's position would have been a much stronger one, and the atomic theory might have had to wait a long while for acceptance.
The above statement does not by any means exhaust the possible predictions that can be made from the atomic theory, but it shows how to test the theory.
The two laws discussed above were more or less accepted before the promulgation of the atomic theory, but the law of multiple proportions is the legitimate offspring of this theory.
The neutralization of acids by bases affords many illustrations, known even before the atomic theory, of the truth of the statement.
As a psychologist de Tracy deserves credit for his distinction between active and passive touch, which developed into the theory of the muscular sense.
Of course, on the theory of thin plates, this direction would be determined.
No form of the elastic solid theory is admissible except that in which the vibrations are supposed to be perpendicular to the plane of polarization, and the difference between one medium and another to be a difference of density only (Phil.
It may have some limit in theory, because there is an optimal arrangement of atoms in the universe; but for practical purposes, it has no limit.
The theory of pricing means people who want items the most choose to buy those items instead of others they could buy.
If we accept the hypothesis that each kind of atom has a specific and invariable weight, we can, with the aid of the above theory, make most important inferences concerning the proportions by weight in which substances combine to form compounds.
Apart from the atomic theory there is no obvious reason why this should be so.
Here again, apart from this theory, there is no obvious reason why the composition of different substances should be related in so simple a way.
Experiment alone can tell us the values of m and n; all that the theory tells us is that they are whole numbers.
If chemical compounds can be proved by experiment to obey these laws, then the atomic theory acquires a high degree of probability; if they are contradicted by experiment then the atomic theory must be abandoned, or very much modified.
Their hypothesis explains so many facts.
The atomic theory has been of priceless value to chemists, but it has more than once happened in the history of science that a hypothesis, after having been useful in the discovery Present and the co-ordination of knowledge, has been aban- position doned and replaced by one more in harmony with later of the discoveries.
Some distinguished chemists have thought atomic that this fate may be awaiting the atomic theory, and that in future chemists may be able to obtain all the guidance they need from the science of the transformations of energy.
At that period geographers regarded the Senegal as the termination of the Niger, a theory held until Mungo Park's demonstration of the eastward course of that stream.