MindMap Gallery history of physics
The history of physics, sharing mechanics, astronomy, optics, atomic physics, electromagnetism, physical methods and unit systems, come and take a look!
Edited at 2023-05-05 11:02:31One Hundred Years of Solitude is the masterpiece of Gabriel Garcia Marquez. Reading this book begins with making sense of the characters' relationships, which are centered on the Buendía family and tells the story of the family's prosperity and decline, internal relationships and political struggles, self-mixing and rebirth over the course of a hundred years.
One Hundred Years of Solitude is the masterpiece of Gabriel Garcia Marquez. Reading this book begins with making sense of the characters' relationships, which are centered on the Buendía family and tells the story of the family's prosperity and decline, internal relationships and political struggles, self-mixing and rebirth over the course of a hundred years.
Project management is the process of applying specialized knowledge, skills, tools, and methods to project activities so that the project can achieve or exceed the set needs and expectations within the constraints of limited resources. This diagram provides a comprehensive overview of the 8 components of the project management process and can be used as a generic template for direct application.
One Hundred Years of Solitude is the masterpiece of Gabriel Garcia Marquez. Reading this book begins with making sense of the characters' relationships, which are centered on the Buendía family and tells the story of the family's prosperity and decline, internal relationships and political struggles, self-mixing and rebirth over the course of a hundred years.
One Hundred Years of Solitude is the masterpiece of Gabriel Garcia Marquez. Reading this book begins with making sense of the characters' relationships, which are centered on the Buendía family and tells the story of the family's prosperity and decline, internal relationships and political struggles, self-mixing and rebirth over the course of a hundred years.
Project management is the process of applying specialized knowledge, skills, tools, and methods to project activities so that the project can achieve or exceed the set needs and expectations within the constraints of limited resources. This diagram provides a comprehensive overview of the 8 components of the project management process and can be used as a generic template for direct application.
history of physics
Mechanics
1638: Galileo published "Dialogue of Two New Sciences", which used scientific reasoning to prove that heavy objects fall as fast as light objects.
1687: Grandpa Niu proposed the three laws and the law of universal gravitation
17th century: Jia Ge once again figured out that "force is the reason for changing the state of motion of objects"
astronomical
1543: Copernicus proposed the heliocentric theory
17th century: Proposed Kepler's three laws
17th century: Hooke proposed the inverse square law
1798: Cavendish measured G through the torsion experiment
19th century: Adams and LeVerrier speculated on the existence of Neptune
Optics
Huygens: Proposed the formula for the period of a simple pendulum and derived Huygens' Principle 17th century
1853: Doppler proposed the Doppler effect
1887: Experimentally verified Max's electromagnetic waves and predicted that the propagation speed of electromagnetic waves is equal to the speed of light.
1895: Roentgen discovers X-rays
1621: Snell discovered the law of refraction
1801: Thomas Young successfully observed the interference of light
1818: Phillier and Poisson created the Beau Poisson spot through the diffraction of light circular spots.
Atomic Physics
1900: Planck proposed the energy quanta hypothesis. When matter emits or absorbs energy, the energy is not continuous, but is divided into parts. Each part is the smallest energy unit and energy quanta.
1905: Einstein proposed the photon theory and successfully explained the law of photoelectric effect
1922: Compton discovered the Compton effect: it proved the particle nature of light. The same conservation of kinetic energy and momentum also applies to microscopic particles.
1924: De Broglie predicted that physical particles would exhibit volatility under certain conditions.
1897: Thomson proposed the date cake model
1911: Rutherford conducted alpha scattering experiments and proposed the nuclear structure of atoms.
1919: Roosevelt discovered the proton through artificial transformation of the atomic nucleus and predicted the neutron, which was later proved by his students.
1885: Balmer summarized the wavelength rules of the spectrum of hydrogen atoms.
1913: Bohr proposed the Bohr atomic model
1896: Becquerel discovered the phenomenon of natural radiation
1896: Marie Curie: Discovered Po, Ra
1934: The Curies discover positrons and artificial radioactive isotopes during alpha bombardment
Electromagnetism
1785: Coulomb integrated Coulomb's law
1837: Faraday introduced electric field lines and proposed Faraday’s law
1820: Oersted: Discovered the existence of magnetic fields and current magnetic effects around energized conductors.
1820: Ampere proposed Ampere's molecular hypothesis and summarized Ampere's rule: judge the relationship between current and magnetic field, and use your left hand to judge the direction of the magnetic force exerted on the energized coil in the magnetic field.
1926: Lorentz: Proposed that charges will have Lorentz force
1913: Millikan measured the charge of the original charge through the oil drop experiment
1826: Obtain Ohm’s Law
19th century: The heating effect produced by electric current passing through a conductor is summarized as Joule's law
1897: Thomson discovered electrons and pointed out that cathode rays are streams of electrons moving at high speeds
1834: Proposed Lenz’s Law
1835: Henry discovered the phenomenon of self-induction
1932: Invented the cyclotron, Lorenz
1864: Maxwell predicted the existence of electromagnetic waves
physical methods unit system
Meter: m, Kilogram: kg, Second: m, Ampere: A, Kelvin: K, Mol, Kandel: cd
ideal model method
Limit method
Micro-element method
ratio definition method
Control Variable
equivalent substitution method
analogical reasoning
ideal experiment method