Classical physics In contrast to classical physics, "modern physics" is a slightly looser term which may refer to just quantum physics or to 20th and 21st century physics in general. Modern physics includes quantum theory and relativity, when applicable. A physical system can be described by classical physics when it satisfies conditions such that the laws of classical physics are approximately valid. In practice, physical objects ranging from those larger than atoms and molecules, to objects in the macroscopic and astronomical realm, can be well-described (understood) with classical mechanics. Beginning at the atomic level and lower, the laws of classical physics break
Atomic Sub Noah Talbot was the Human Sub (though this was changed to the Atomic Sub after the war). After World War II, the Atomic Sub became a member of the Roundtable of America with Knight Watchman and Ultiman. During the Criss-Cross Crisis (In which Earths A and B came into contact with one another), The Atomic Sub bravely sacrificed himself to save the two Earths, and was respected as a hero on both worlds. In the distant future, the remains of the Atomic Sub were used to construct the cyborg known as Bezerker. As well as super-strength and flight, the Atomic