Curie point Pierre CuriePierre Curie ( May 15, 1859 April 19, 1906) was a pioneer in the study of crystallography, magnetism, piezoelectricity and radioactivity. Pierre was educated at home by his father, and in his early teens showed a strong aptitude for mathematics and geomet
Doppler effectThe Doppler effect is the apparent change in frequency or wavelength of a wave that is perceived by an observer moving relative to the source of the waves. For waves, such as sound waves, that propagate in a wave medium, the velocity of the observer and t Christian DopplerChristian Andreas Doppler ( November 29, 1803 March 17, 1853) was an Austrian mathematician, most famous for the hypothesis of what is now known as the Doppler effect which causes the frequency of a wave to apparently change as its source moves toward or
Doppler profileThe Doppler profile is a spectral line profile which results from the thermal motion of the emitting atom or molecule. When thermal motion causes a particle to move towards the observer, the emitted radiation will be shifted to a higher frequency. Likewis Christian DopplerChristian Andreas Doppler ( November 29, 1803 March 17, 1853) was an Austrian mathematician, most famous for the hypothesis of what is now known as the Doppler effect which causes the frequency of a wave to apparently change as its source moves toward or
Edison effectThermionic emission is the flow of electrons from a metal or metal oxide surface, caused by thermal vibrational energy overcoming the electrostatic forces holding electrons to the surface. The effect increases dramatically with increasing temperature, but Thomas EdisonThomas Alva Edison ( February 11, 1847 October 18, 1931) was an inventor and businessman who developed many important devices. The Wizard of Menlo Park was one of the first inventors to apply the principles of mass production to the process of invention.
Fermi energyIn physics, some particles (for example electrons) follow the Pauli exclusion principle i. that no two particles may occupy the same state at the same time. When a number of electrons are put into a system, electrons will occupy higher energy levels when, Fermi paradoxRadio telescope observations play a role in researching the Fermi paradox The Fermi paradox is a paradox proposed by physicist Enrico Fermi that questions the possibilities of finding intelligent extraterrestrial life. More specifically, it deals with the Enrico Fermi
