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.
Atom History Timeline Erwin Schrodinger John Dalton - Designed symbols to show how atoms combine to form other substances Ernest Rutherford - Discovery of the Nucleus! - Found that an atom is made up mainly of empty space J.J Thompson/Discovery Of Electrons - Thomson determined the charge to mass ratio (e/m) of an electron equaled 1.759 x 108 C/g through experiments he did with gas discharge tubes (Cathode Ray Tube Experiment) Democritus - Believed that the universe was made of tiny âindivisibleâ particles