James Clerk Maxwell (Scottish; 13 June 1831 – 5 November 1879) Mathematical physicist who developed a set of (4) equations that express the basic laws of electricity and magnetism. He is believed to be one of the finest mathematical minds of any theoretical physicist of his time, and is widely regarded as the nineteenth century scientist who had the greatest influence on twentieth century physics. He showed that electric and magnetic fields can travel through the vacuum of space, in the form of waves, and at a constant velocity of 3.0 × 108 m/s (which is known as the speed of light). He also proposed that light was a form of electromagnetic radiation. His (4) equations were based on the previous works of Ampère, Faraday, Gauss, and others. His first equation, called Ampère’s Law, predicts the magnetic field that will be created by a given flow of current. The second equation, called Faraday’s Law, is essentially the inverse of the first, and calculates the electrical current that will be generated from a changing magnetic field (this is how most electrical power is generated). The third equation, called Gauss’ Law, states that a static electrical charge must generate an electrical voltage. The fourth equation, simply called the Fourth Equation, basically asserts that a magnetic charge (or magnetic monopole) cannot exist – the way that an electron can carry an electrical charge. It is believed – though may be disproved in the future – that all magnetic fields have equal and opposing poles. Read more…
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Iva Raynova The CMS experiment is looking for exotic longlived particles that could get trapped in its detector layers (Image: Michael Hoch, Maximilien Brice/CERN) New particles produced in the LHC’s [More...]
CERN Director General, the Minister of Foreign Affairs of the Republic of Lithuania and the President of the Republic of Lithuania at the signing of the agreement (Image: Robertas Dačkus/Office of the [More...]
(Video: Daniel Dominguez/CERN) CERN wishes you Happy New Year 2018. In 2017, CERN pushed the limits of knowledge with many new developments. Its flagship machine, the Large Hadron Collider (LHC), coll [More...]
(Video: Noemi Caraban/CERN) This year has been rich with new facilities for research and applications, physics results that enrich human knowledge and international collaborations that bring togethe [More...]
Iva Raynova On a peaceful afternoon in early summer 1977, the laboratory of CERN radiobiologist Marilena Bianchi was visited by a physicist with a pretty unusual request. He asked for her help in his [More...]
Researchers designed an atomically thin mirror with electronically switchable reflectivity that could be useful in optoelectronic circuits. [Physics] Published Thu Jan 18, 2018 [More...]
A twodimensional array of holes shaped like snowflakes could route acoustic waves along an internal edge without any wave backscattering.[Physics] Published Thu Jan 18, 2018 [More...]
Author(s): Harvey ReallA numerical analysis of perturbations of a charged black hole suggests that the usual predictability of the laws of physics can fail in general relativity.[Physics 11, 6] Publis [More...]
Author(s): Derek F. Jackson KimballAn enhanced version of a magnetometer based on atomic spins could be used to search for theoretically predicted exotic fields with ultrahigh sensitivity.[Physics 11, [More...]
Numerical simulations of a hurricanelike system have determined the conditions necessary for the formation of a calm “eye” in the center of the storm.[Physics] Published Fri Jan 12, 2018 [More...]
It is shown that the vacuumlike energy of the Higgs potential at nonzero temperatures leads, in the course of the cosmological expansion, to a small but nonnegligible rise of the entropy density in [More...]
We work out the oneloop and order κ 2 m ##IMG## [http://ej.iop.org/icons/Entities/phi.gif] {phi} 2 UV divergent contributions, coming from Unimodular Gravity and General Relativity, to the S matrix e [More...]
Matter bounces refer to scenarios wherein the universe contracts at early times as in a matter dominated epoch until the scale factor reaches a minimum, after which it starts expanding. While such sce [More...]
We consider minimal U(1) extensions of the Standard Model in which one of the righthanded neutrinos is charged under the new gauge symmetry and plays the role of dark matter. In particular, we perfor [More...]
We propose the disappearance of "the hyperon puzzle" in neutron star (NS) by invoking two newphysics prescriptions: modified gravity theory and braneworld scenario. By assuming that NS live [More...]
