Atomic theory grew as a series of models that developed from experimental evidence. As more evidence was collected, the theory and models were revised with time, thus changing the theories often.
Atomic theory grew as a series of models that developed from experimental evidence. As more evidence was collected, the theory and models were revised with time, thus changing the theories often.
As new technologies come about, new investigations take place, new facts are uncovered. In order to maintain accuracy, theories must sometimes be changed to meet the current facts. REMEMBER: A theory is NOT a fact, it is supported by many facts that lead to the best explanation of science as we know it TODAY! Theories are constantly being revised to best fit the knowledge and facts we have.
Like all theories, if the results obtained by experiments to test the theory do not exactly fit the results expected by the theory, then the theory is mistaken, wholly or at least in part. Over time, physicists have devised all sorts of theories and experiments to test them. As the methods of measurement have been refined and increased in precision, new theories have been devised to explain the small anomalies found between predictions from theory and the results obtained by experiment. Even today, we cannot be sure that our current theory for the atomic structure (the Standard Model) is correct because we have yet to discover all the particles predicted by the theory (hence the ongoing search for the Higgs Boson) and moreover, nobody can explain the phenomenon of gravity. Depending who you talk to and in what context, some will say gravity travels at the speed of light, others will say it must travel at least twenty times faster, while others say it must travel at least ten million times faster, while yet others say the effect of gravity is instantaneous and travels at infinite speed. No doubt, as we learn more and more from experimentation, new theories to explain the results obtained will be devised. Change is inevitable.
Update: The Higgs Boson has been discovered within the energy range expected by the current theory.
YES!! Discoveries in theoretical Chemistry are still being made. For example at the moment modelling electron correlation is an area of interest.
Darwin's original theory was formulated over 150 years ago. The modern theory of evolution, while still basically the same as Darwin's, is also significantly different. In either case, there is no scientific alternative to the origin of biodiversity.This is equivalent to how there is no scientific alternative to Atomic Theory.
it has because it was polluting the air and now it is not
yes. if a new scientist comes along that is more educated a theory can change. over time scientists learn more and more about topics and they can be updated when new information is discovered.
evolution
There have been many scientists that have worked on the theory of emergence over the years. Emergence theory has been written about by scientists such as Julian Huxley and John Stuart Miller.
yes it has changed over many years
Because people's interest has changed over the years.
Wave rock has changed over the years because it has changed colour
has hats changed over the years
The Theory of Continental Drift!
Computers have changed in many ways over the years. Technology has advanced< and it has become more easy to do stuff!
The atom theory changed over time because of conflicting experiments which led to revisions, such as when Rutherford revised Thomson's plum-pudding model to include the nucleus. Also, another reason for the atomic theory to change is technological advancements. For example, a scanning tunneling electron microscope, is now used for studying atoms.
Well according to my calculation and theory has not been active for over 73 years. Do to global warming the mountains climate has changed.
it changed by... well it changed... It just changed!
By now, this should not still be a theory, it should be common knowledge.
The actors over the years have changed
The theory of evolution does not explain how the world was created or how life was created. It explains how living things have changed over the years, but not how they first came to be.