Your doctor may need to change the doses of your medications or monitor you carefully for side effects. ... Metformin side effects can also affect other parts of the body. It can leave a metallic taste in the mouth, cause heartburn or headache, flushing of the skin, nail changes or muscle pain. More serious metformin side effects include chest pain or rash. ...
Early String Theory. The first attempt to construct a physical model of an atom was made by William Thomson (later elevated to Lord Kelvin) in 1867. The most striking property of the atom was its permanence.
We are going to look at how our modern understanding of the atom has evolved over time. The origins of atomic theory. The idea of atoms was invented by two Greek philosophers, Democritus and Leucippus in the fifth century BC.The Greek word Î±ÏoÎ¼oÎ½ (atom) means indivisible because they believed that atoms could not be broken into smaller pieces.e are going to look at how our modern understanding of the atom has evolved over time. The origins of atomic theory. The idea of atoms was invented by two Greek philosophers, Democritus and Leucippus in the fifth century BC.