There are two major divisions of physics: classical and modern. Within classical physics, the major subdivisions are mechanics, thermodynamics, acoustics, optics, electricity and magnetism. The subdivisions of modern physics consist of chaos theory, relativity, string theory, cryogenics, crystallography and nanotechnology. The field also includes quantum-level, atomic, molecular, chemical, computational, high-energy, high-pressure and laser physics.Know More
Classical physics is often described as the study of physics on the macroscopic level, meaning questions are generally investigated without the aid of highly technological equipment, such as electron microscopes. The inception of classical physics dates back to the late 1500s. Mechanics is the oldest subdivision of classical physics. The field is inspired by the work of Isaac Newton.
The study of modern physics takes place at the sub-microscopic level. This division of physics investigates the behavior of very small particles, such as electrons and atoms. Modern physics developed in the early 1900s when physicists began to realize that the laws of classical physics did not always hold true for sub-microscopic particles. Notable advances in modern physics include Einstein's theories of relativity and Heisenberg's principle of indeterminacy. Because even the world's most advanced microscopes cannot make sub-microscopic particles visible, expensive tools and equipment, such as particle accelerators, are required to explore the world at this level.Learn more in Physics
The five main branches of chemistry are organic chemistry, inorganic chemistry, analytical chemistry, physical chemistry and biochemistry. Chemistry can be further divided into many sub-branches that may fall under more than one of the main branches. Some sub-branches include forensic chemistry, medicinal chemistry, materials chemistry and nuclear chemistry.Full Answer >
The weight of wood varies widely depending on the species of the tree, the amount of wood being weighed and the moisture content of the wood.Full Answer >
Michael Faraday received very little formal education, but while he served as a teenage apprentice to a bookbinder, he developed a love of science and learning that dominated the rest of his life. He attended lectures by the chemist Humphry Davy in 1812 and wrote to Davy, requesting to serve as the scientist's assistant. Faraday eventually joined the Royal Institution as a chemical assistant, beginning his career in science.Full Answer >
Spectral analysis measures and analyzes the properties of matter based on the material's interactions with electromagnetic energy. In chemistry and physics, this process is known as spectroscopy. Spectroscopy is of particular use in astronomy, where it is used to determine the chemical composition of celestial objects.Full Answer >