Ørsted's discovery also represented a major step toward a unified concept of energy.

Hans Christian Ørsted's discovery of the magnetic effect of electrical currents in 1820 was immediately recognized as an epoch-making advance, although he left further work on electromagnetism to others.

It is sometimes assumed that he found a relationship between electricity and magnetism, about two decades before Hans Christian Ørsted's 1820 discovery of electromagnetism.

Ørsted's slightly obscure words were that " the electric conflict acts in a revolving manner.

With Ørsted's support, a further series of quantitative experiments was sponsored by the Royal Danish Academy of Sciences and Letters, culminating in a report in 1847.

Ørsted's work influenced Ampère to produce a theory of electromagnetism that set the subject on a mathematical foundation.

The Institute had been founded at Ørsted's initiative and he offered continual advice and support to the young Colding.

Her next major discovery was a partial skeleton of a new type of marine reptile in the winter of 1820 – 1821, the first of its kind to be found.

Streeter clearly lied about his discovery of the " District of Lake Michigan " in 1886, referencing a map published in 1821 to determine that his " District " was outside of City limits.

The discovery of iron ore in the county led to the smelting operation at Wolcott furnace north of Wolcott village from 1821 to 1869.

In 1821, while working in the village of Les Baux-de-Provence, in southern France, he discovered the mineral bauxite, named for the place of its discovery.

Michael McCleod, the captain of the Beaufoy, sighted the South Orkney Islands on November 22, 1821, an independent discovery from that of Powell just a few days earlier.

In September of 1820, Ampère ’ s friend and eventual eulogist François Arago showed the members of the French Academy of Sciences the surprising discovery of Danish physicist Hans Christian Ørsted that a magnetic needle is deflected by an adjacent electric current.

Ørsted did not fully understand his discovery, but he observed the effect was reciprocal: a current exerts a force on a magnet, and a magnetic field exerts a force on a current.

Soon after the discovery in 1820 by H. C. Ørsted that a magnetic needle is acted on by a voltaic current, André-Marie Ampère that same year was able to devise through experimentation the formula for the angular dependence of the force between two current elements .< ref >

The Nobel citation acknowledged Lauterbur's insight of using magnetic field gradients to determine spatial localization, a discovery that allowed rapid acquisition of 2D images.

It was put forward by the brothers Fritz and Heinz London in 1935, shortly after the discovery that magnetic fields are expelled from superconductors.

He cites his discovery of the rotating magnetic field principle in 1882 as the basis for these applications.

His discovery of the decrease in intensity of Earth's magnetic field from the poles to the equator was communicated to the Paris Institute in a memoir read by him on December 7, 1804, and its importance was attested by the speedy emergence of rival claims.

From a child's verbal description of a snowflake, to the detailed scientific analysis of the properties of magnetic fields, the concept of structure is now often an essential foundation of nearly every mode of inquiry and discovery in science, philosophy, and art.

* NASA: " Magnetar " discovery solves 19-year-old mystery Citat: "... suggested a magnetic field strength of about 800 trillion auss ...").

Since 2009, numerous news reports from the popular media have incorrectly described these systems as the long-awaited discovery of the magnetic monopoles, but the two phenomena are only superficially related to one another.

Isidor Isaac Rabi (; 29 July 1898 – 11 January 1988 ) was a Galician-born American physicist and Nobel laureate, recognized in 1944 for his discovery of nuclear magnetic resonance, which is used in magnetic resonance imaging.

The oldest-known magnetic substance, magnetite ( iron ( II, III ) oxide ; Fe < sub > 3 </ sub > O < sub > 4 </ sub >), is a ferrimagnet ; it was originally classified as a ferromagnet before Néel's discovery of ferrimagnetism and antiferromagnetism in 1948.

Alternating current generating systems were known in simple forms from the discovery of the magnetic induction of electric current.

The first step to resolving how to measure blood flow to the brain was Linus Pauling's and Charles Coryell's discovery in 1936 that oxygen-rich blood with Hb was weakly repelled by magnetic fields, while oxygen-depleted blood with dHb was attracted to a magnetic field, though less so than paramagnetic elements such as iron.

Data from Explorer 1 and Explorer 3 ( launched March 26, 1958 ) were used by the Iowa group to make the first space-age scientific discovery: the existence of a doughnut-shaped region of charged particle radiation trapped by Earth ’ s magnetic field.

The discovery of the rotating magnetic field is generally attributed to two inventors, the Italian physicist and electrical engineer Galileo Ferraris, and the Austrian / Serbian inventor and electrical engineer Nikola Tesla.

Examples include Michael Faraday, who, with James Clerk Maxwell, unified the electric and magnetic forces in what are now known as Maxwell's equations ; James Joule, who worked extensively in thermodynamics and is often credited with the discovery of the principle of conservation of energy ; Paul Dirac, one of the pioneers of quantum mechanics ; naturalist Charles Darwin, author of On the Origin of Species and discoverer of the principle of evolution by natural selection ; Harold Kroto, the discoverer of buckminsterfullerene ; William Thomson ( Baron Kelvin ) who drew important conclusions in the field of thermodynamics and invented the Kelvin scale of absolute zero ; botanist Robert Brown discovered the random movement of particles suspended in a fluid ( Brownian motion ); and the creator of Bell's Theorem, John Stewart Bell.

Knowing that Centaurus A was composite, Bracewell used the 6. 7-minute beam of the Parkes Observatory 64 m radiotelescope at 10 cm to determine the separate declinations of the components and in so doing was the first to observe strong polarisation in an extragalactic source ( 1962 ), a discovery of fundamental significance for the structure and role of astrophysical magnetic fields.

demonstration of the wave nature of atoms and molecules ; measurement of atomic magnetic moments ; discovery of the proton's magnetic moment ; and development of the molecular ray method which is utilized for the technique of molecular beam epitaxy.

Although the idea of making electromagnets with superconducting wire was proposed by Heike Kamerlingh Onnes shortly after he discovered superconductivity in 1911, a practical superconducting electromagnet had to await the discovery of type-II superconductors that could stand high magnetic fields.

Major research efforts in the field include sequence alignment, gene finding, genome assembly, drug design, drug discovery, protein structure alignment, protein structure prediction, prediction of gene expression and protein – protein interactions, genome-wide association studies and the modeling of evolution.

This was a major discovery in an important field of mathematics ; construction problems had occupied mathematicians since the days of the Ancient Greeks, and the discovery ultimately led Gauss to choose mathematics instead of philology as a career.

The spread of Protestantism cost it six or seven provinces and several hundreds of convents, but the discovery of the New World opened up a fresh field of activity.

In January 2010 the Kepler Mission announced the discovery of the additional planets Kepler-7b, Kepler-8b, and three planets around Kepler-9 are expected to be the first of many discovered by the mission, which has a significant part of its field of view in Lyra.

The discovery of asymptotic freedom in the strong interactions by David Gross, David Politzer and Frank Wilczek allowed physicists to make precise predictions of the results of many high energy experiments using the quantum field theory technique of perturbation theory.

Over the ten years following the McFaddin discovery, more than 72 million barrels ( 11. 4 GL ) of oil were produced, mostly from the newer areas of the field.

Stimulated emission was a theoretical discovery by Einstein within the framework of quantum mechanics, wherein the emission is described in terms of photons that are the quanta of the EM field.

In 1984 Carlo Rubbia and Simon van der Meer were awarded the Nobel Prize " for their decisive contributions to the large project, which led to the discovery of the field particles W and Z, communicators of weak interaction "

The discovery of these mechanisms and their manifestations started with Mendel and comprises the field of genetics.

He made fundamental contributions to the field of analytical geometry and was a pioneer in the investigations of cathode rays that led eventually to the discovery of the electron.

Discovery within the field of particle physics has an accepted definition for what constitutes a discovery: a five-sigma level of certainty.

For example, in the 1970s, the gravity field disturbances above lunar maria were measured through lunar orbiters, which lead to the discovery of concentrations of mass, mascons, beneath the Imbrium, Serenitatis, Crisium, Nectaris and Humorum basins.

Although interest in the relationship between ontogeny and phylogeny extends back to the nineteenth century, the contemporary field of evo-devo has gained impetus from the discovery of genes regulating embryonic development in model organisms.

However, the discovery of natural gas in the Leviathan gas field led to a thawing of relations between the two governments.

Current literature suggests that a slow weakening of the geomagnetic field is one of several causes for the changes in the borders of the SAA since its discovery.

" This field emerged in the middle of the 18th century, following the electrical researches and the discovery of the effects of electricity on the human body.

In 1943, the discovery well for the Spraberry Trend, the third-largest oil field in the United States by remaining reserves, was drilled in Dawson County on land owned by farmer Abner Spraberry, for whom the geological formation and associated field was named.

It also provided a safer and more convenient way to bring workers from Tulsa to the oil field after the 1901 discovery of oil in Red Fork.