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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 CERN: Updates for the general public
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Stephanie Hills The first Africanled experiment has taken place at CERN, supported by UK researchers. Students and staff from the University of the Western Cape, South Africa, have investigated the i [More...]
Sarah Charley This 11meter high prototype at CERN will refine neutrino detector technology. The final DUNE detectors will be 20 times larger than this prototype and located in the new LBNF cavern in [More...]
Harriet Jarlett This is the Miniball germanium array, which is using the first HIEISOLDE beams for the experiments described below (Image: Julien Ordan /CERN) For the first time in 2017, the HIE ISO [More...]
(Video: Christophe Madsen  Mike Struik/CERN) Get a unique perspective of CERN by following this drone’s journey around the laboratory as it flies over the iconic Globe exhibition hall, the site of th [More...]
Many results are being presented at the conference for the first time (Image: EPSHEP 2017) The world’s particle physics community is meeting this week in Venice (Italy) for the EPS International Conf [More...]
Author(s): Sam DolanA spinning black hole may lose up to 9% of its mass by spontaneously growing “hair” in the form of excitations of a hypothetical particle field with a tiny mass.[Physics 10, 83] Pu [More...]
Author(s): Mark BuchananA new technique produces an image of the flow of cold atoms through a channel, a potentially important tool for future coldatom technology.[Physics 10, 84] Published Fri Jul 2 [More...]
An electric field can pull apart a millimetersized oil drop, causing it to shed thin rings from its equator that then break up into tiny droplets.[Physics] Published Thu Jul 20, 2017 [More...]
Author(s): Brian Swingle and Norman Y. YaoTwo experimental groups have taken a step towards observing the “scrambling” of information that occurs as a manybody quantum system thermalizes. [Physics 1 [More...]
A model explains why grid cells—neurons that are part of the brain’s positioning system—fire electrical pulses in hexagonal patterns.[Physics] Published Wed Jul 19, 2017 [More...]
We study the dynamical aspects of dark energy in the context of a nonminimally coupled scalar field with curvature and torsion. Whereas the scalar field acts as the source of the trace mode of torsio [More...]
Recent recalibration of the Type Ia supernova (SNe Ia) magnituderedshift relation combined with cosmic microwave background (CMB) and baryon acoustic oscillation (BAO) data have provided excellent c [More...]
Secret contact interactions among eV sterile neutrinos, mediated by a massive gauge boson X (with M X ##IMG## [http://ej.iop.org/icons/Entities/ll.gif] {ll} M W ), and characterized by a gauge couplin [More...]
Stellar nucleosynthesis proceeds via the deuteron (D), but only a small change in the fundamental constants of nature is required to unbind it. Here, we investigate the effect of altering the binding [More...]
We consider a generic scalartensor theory involving a shiftsymmetric scalar field and minimally coupled matter fields. We prove that the Noether current associated with shiftsymmetry vanishes in re [More...]
