Mechanics, motions of objects Quantum Theory, describing interactions of particles and energy Thermodynamics, description of systems of matter and energy A Brief Introduction to Particle Physics Albert Einstein, prominent 20th century physicist doing a science experiment for school doing a science fair project for school Q & A About Physics Stephen William Hawking, contemporary physicist Thematic Essay: Physics, from Leonardo to Hertz all articles about physics Antimatter Atoms Created for the First Time applications astrophysics atomic and molecular physics biophysics branches of physics classical (Newtonian) and pre-classical physics condensed-matter (solid-state) physics constants cosmology definition and scope of study devices and tools electromagnetism elementary particles equations and formulas fundamental forces of nature geophysics laws of motion modern physics nuclear physics pictures, diagrams, and illustrations quantum theory quotations Arrogance: If I could explain it to the average… Astronomy: The wonder is, not that… Beginning: Motion being eternal, the first mover, if… Discovery: And Archimedes, as he was… Education: MASTER They split the atom… God: God is subtle but he… Nature: Nature is very consonant and… Nature: Whatever Nature has in store… Nuclear Weapons: Man has wrested from nature… Philosophy: "Logic," "ethics," and "physics" begin to… Philosophy: The principles of logic and… Physics: A physical theory is not an explanation. It… Physics: All science is either physics… Physics: Classical physics has been superseded… Physics: Einstein said that if quantum mechanics is right,… Physics: Fifty-five crystal spheres geared to… Physics: Give me a firm place… Physics: Hence no force however great… Physics: I believe there are… Physics: If you want to find… Physics: It's as important an event as would be the… Physics: Physics becomes in those years… Physics: Physics is much too hard for physicists. Physics: That great mother of sciences. Physics: The central idea of the consilience world view is… Physics: There is no democracy in physics. We can't… Psychology: Physics investigates the essential nature of the… Psychology: When we are studying psychology we may feel… Reality: Einstein's space is no closer… Research: We haven't got the money,… Science: American science is a thing of the future,… Science: Common sense drives us to accept quantum… Science: Electrical force is defined as… Science: If only I had known,… Science: It would be better for the true physics if… Science: Life is a partial, continuous,… Science: Man is slightly nearer to… Science: Natural science does not simply… Science: Physicists like to think that… Science: Physicists...just want to know what the world… Science: Quantum mechanics is certainly imposing...but… Science: The aim of research is… Science: The content of physics is… Science: To some physicists chaos is… Science: We have no right to… Science: When you are courting a… Scientists: The Italian navigator has reached the New… Scientists: We now have direct evidence… Scientists: What Galileo and Newton were… Space: Everything in space obeys the… Universe: My own suspicion is that… Universe: The principle of maximum diversity… Universe: The universe begins to look… Universe: There is no reason to… Universe: Why does the universe go… researchers and their work Sir Isaac Newton, physicist of the 17th and 18th centuries theoretical physics thermodynamics variables wave phenomena