The sequence of events leading to his important discovery still remains ambiguous but it seems that one of the advanced students at the university related that the first direct event that led to the publication of Oersted's discovery occurred during a private lecture made before a group of other advanced students in the spring of 1820.

This has led some authors to advocate that Giesel alone should be credited with the discovery.

J. J. Thomson created a technique for separating atom types through his work on ionized gases, which subsequently led to the discovery of stable isotopes.

More recent observations made in the laboratory of antibiosis between micro-organisms led to the discovery of natural antibacterials produced by microorganisms.

The discovery of such a powerful antibiotic was unprecedented, and the development of penicillin led to renewed interest in the search for antibiotic compounds with similar efficacy and safety.

Florey credited Dubos with pioneering the approach of deliberately and systematically searching for antibacterial compounds, which had led to the discovery of gramicidin and had revived Florey's research in penicillin.

The 1940 discovery of a lost work by Vincent of Lérins, which bears a striking similarity to much of the language of the Athanasian Creed, have led many to conclude that the creed originated either with Vincent or with his students.

Aberration should not be confused with stellar parallax, although it was an initially fruitless search for parallax that first led to its discovery.

The discovery of chlorpromazine's psychoactive effects in 1952 led to greatly reduced use of restraint, seclusion, and sedation in the management of agitated patients, and also led to further research that resulted in the development of antidepressants, anxiolytics, and the majority of other drugs now used in the management of psychiatric conditions.

The publication of Total Baseball led to the discovery of several " phantom ballplayers ", such as Lou Proctor, who did not belong in official record books and were removed.

The greed for gold led to the discovery of the process for its purification, even though the underlying principles were not well understood — it was thought to be a transformation rather than purification.

It was fire that led to the discovery of iron and glass.

Early twentieth-century experiments on the physics of very small-scale phenomena led to the discovery of phenomena which could not be predicted on the basis of classical physics, and to the development of new models ( theories ) that described and predicted very accurately these micro-scale phenomena.

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 discovery of Ceres led Gauss to his work on a theory of the motion of planetoids disturbed by large planets, eventually published in 1809 as Theoria motus corporum coelestium in sectionibus conicis solem ambientum ( Theory of motion of the celestial bodies moving in conic sections around the Sun ).

She called this experience " the falling apple " that led to her discovery of Christian Science.

She referred to this event as her " Great Discovery ", the " falling apple " that led to her " discovery how to be well " herself ( ibid.

This led to a weakening of the domestic economy after Columbus ' discovery of America, as the economy became dependent on colonial activities ( plundering, mining, cattle, plantations, trade, etc.

It was here that during 1935, the Regent, Reting Rinpoche, received a clear vision of three Tibetan letters and of a monastery with a jade-green and gold roof, and a house with turquoise roof tiles, which led to the discovery of Tenzin Gyatso, the 14th Dalai Lama.

The success of his discovery soon spread around Europe and for example was used en masse in the Spanish Balmis Expedition, a three year long mission to the Americas, Philippines, Macao, China, and Saint Helena Island led by Dr. Francisco Javier de Balmis with the aim of giving thousands the smallpox vaccine.

This discovery led to the well-known axiom: like-charged objects repel and opposite-charged objects attract.

This discovery led to less emphasis on learning the classics because they found that studying the classics does not contribute to overall general intelligence.

And an additional factor was helping to make women more sexually self-assertive -- the comparatively recent discovery of the true depths of female desire and response.

This discovery of Melies was vastly more important than his sometimes dazzling, magician's tricks produced on film.

For more details of this early work, see Alpha particle # History of discovery and use.

Since the first discovery in 1884, fossils of more than thirty individuals have been recovered, providing scientists with a more detailed knowledge of Albertosaurus anatomy than is available for most other tyrannosaurids.

Since the later discovery of the electron, an easier to remember, and more durably correct technically although historically false, etymology has been suggested: anode, from the Greek anodos, ' way up ', ' the way ( up ) out of the cell ( or other device ) for electrons '.

In the case of Arcturus, this was an interesting discovery as it is known that the redder ( more towards or within the M spectral class ) a giant gets, the more variable it will be.

Genomic knowledge of the genes involved in diseases, disease pathways, and drug-response sites are expected to lead to the discovery of thousands more new targets.

According to Mike Dash, a Welsh historian, few scientists doubt there are thousands of unknown animals, particularly invertebrates, awaiting discovery ; however, cryptozoologists are largely uninterested in researching and cataloging newly-discovered species of ants or beetles, instead focusing their efforts towards " more elusive " creatures that have often defied decades of work aimed at confirming their existence.

Since the later discovery of the electron, an easier to remember, and more durably technically correct ( although historically false ), etymology has been suggested: cathode, from the Greek kathodos, ' way down ', ' the way ( down ) into the cell ( or other device ) for electrons '.

The Dominican Republic's small Catalina Island has been studied since 13 December 2007, by a team of underwater archaeologists from Indiana University, after an Italian tourist announced the discovery of an old wreck at just under the clear blue waters, at a distance of no more than offshore.

For example, in the 19th century, the Sun appeared to be no more than 20 million years old, but the Earth appeared to be no less than 300 million years ( resolved by the discovery of nuclear fusion and radioactivity, and the theory of quantum mechanics ); or current attempts to resolve theoretical differences between quantum mechanics and general relativity.

The discovery of the kokhim tombs just beyond the west end of the Church, and more recent archaeological investigation of the rotunda floor, suggest that a narrow spur of at least ten yards length would have had to jut out from the rock face if the contents of the Aedicule were once inside it.

Other more recent models are Phaeaco ( implemented by Harry Foundalis ) and SeqSee ( Abhijit Mahabal ), which model high-level perception and analogy-making in the microdomains of Bongard problems and number sequences, respectively, as well as George ( Francisco Lara-Dammer ), which models the processes of perception and discovery in triangle geometry.

In 1801, the German physicist Johann Wilhelm Ritter made the discovery of ultraviolet by noting that the rays from a prism darkened silver chloride preparations more quickly than violet light.

The discovery and development of the technology made radio receivers, then the primary communications devices of the time, more sensitive and selective.

Modern humans are known to have overlapped with Neanderthals in Europe for more than 10, 000 years, and the discovery raises the possibility that Neanderthals, modern humans and the Denisova hominin may have co-existed.

The discovery of a galaxy more than 13 billion years old, which existed only 480 million years after the Big Bang, was reported in January 2011.

Partly because of the Caribs, Grenada remained uncolonized for more than one hundred years after its discovery.

Genetically modified ( genetically engineered ) animals are becoming more vital to the discovery and development of cures and treatments for many serious diseases.

In 1545, he followed with the De natura eorum quae effluunt e terra ; in 1546 the De veteribus et novis metallis, a comprehensive account of the discovery and occurrence of minerals and also more commonly known as De Natura Fossilium ; in 1548, the De animantibus subterraneis ; and in the two following years a number of smaller works on the metals.

This only began to change in the 1970s, partly due to the discovery and development of North Sea oil and gas and partly as Scotland moved towards a more service-based economy.

This only began to change in the 1970s, partly due to the discovery and development of North Sea oil and gas and partly as Scotland moved towards a more service-based economy.