Balfour Stewart (1 November 1828 – 19 December 1887) was a Scottish physicist. Events 996 - Emperor Otto III issues a deed to Gottschalk Bishop of Freising which is the oldest known document using the name Ostarrîchi The year 1828 ( MDCCCXXVIII) was a Leap year starting on Tuesday (link will display the full calendar of the Gregorian Calendar (or a Leap Events 324 - Licinius abdicates his position as Roman Emperor. Year 1887 ( MDCCCLXXXVII) was a Common year starting on Saturday (link will display the full calendar of the Gregorian calendar (or a Common Scotland ( Gaelic: Alba) is a Country in northwest Europethat occupies the northern third of the island of Great Britain.

Stewart was born in Edinburgh, and was educated at the University of Edinburgh. Edinburgh ( ˈɛdɪnb(ərə Dùn Èideann) is the Capital of Scotland and is its second largest city after Glasgow. The University of Edinburgh (Oilthigh Dhùn Èideann founded in 1582 is a renowned centre for teaching and research in Edinburgh, Scotland, UK. The son of a tea merchant, he was for some time engaged in business in Leith and in Australia, but, returning to his studies of physics at Edinburgh, he became assistant to J. D. Forbes in 1856. Tea refers to the cured agricultural product of the leaves leaf buds and internodes of Camellia sinensis, which have been prepared and cured for the market Formerly a municipal Burgh, Leith (Lìte is a district in the north of the city of Edinburgh at the mouth of the Water of Leith and is the port For a topic outline on this subject see List of basic Australia topics. James David Forbes ( April 20, 1809 - December 31, 1868) was a Scottish Physicist who worked extensively on the conduction Year 1856 ( MDCCCLVI) was a Leap year starting on Tuesday (link will display the full calendar of the Gregorian Calendar (or a Leap year Forbes was especially interested in questions of heat, meteorology, and terrestrial magnetism, and it was to these that Stewart also mainly devoted himself. Meteorology (from Greek grc μετέωρος metéōros, "high in the sky" and grc -λογία -logia) is the Interdisciplinary Earth 's magnetic field (and the surface magnetic field) is approximately a Magnetic dipole, with one pole near the North pole (see

Radiant heat first claimed his attention, and by 1858 he had completed his first investigations into the subject. Year 1858 ( MDCCCLVIII) was a Common year starting on Friday (link will display the full calendar of the Gregorian Calendar (or a Common These yielded a remarkable extension of Pierre Prévost's "Law of Exchanges," and enabled him to establish the fact that radiation is not a surface phenomenon, but takes place throughout the interior of the radiating body, and that the radiative and absorptive powers of a substance must be equal, not only for the radiation as a whole, but also for every constituent of it. Pierre Prévost ( 3 March 1751 - 8 April 1839) was a Swiss Philosopher and Physicist.

In recognition of this work he received in 1868 the Rumford Medal of the Royal Society, into which he had been elected six years before. Year 1868 ( MDCCCLXVIII) was a Leap year starting on Wednesday (link will display the full calendar of the Gregorian Calendar (or a Leap Not to be confused with the Rumford Prize In 1796, Benjamin Thompson known as Count Rumford, gave $5000 separately to the Royal The Royal Society of London for the Improvement of Natural Knowledge, known simply as The Royal Society, is a Learned society for science that was founded in 1660 Of other papers in which he dealt with this and kindred branches of physics may be mentioned "Observations with a Rigid Spectroscope," "Heating of a Disc by Rapid Motion in Vacuo," "Thermal Equilibrium in an Enclosure Containing Matter in Visible Motion," and "Internal Radiation in Uniaxal Crystals. "

In 1879 he was appointed director of Kew Observatory, and there naturally became interested in problems of meteorology and terrestrial magnetism. Year 1879 ( MDCCCLXXIX) was a Common year starting on Wednesday (link will display the full calendar of the Gregorian calendar (or a Common Kew Observatory was an astronomical and terrestrial magnetic Observatory located in Kew, London, England. In 1870, the year in which he was very seriously injured in a railway accident, he was elected professor of physics at Owens College, Manchester, and retained that chair until his death, which happened near Drogheda, in Ireland, on 19 December 1887. Year 1870 ( MDCCCLXX) was a Common year starting on Saturday (link will display the full calendar of the Gregorian calendar (or a Common The Victoria University of Manchester (commonly known as the University of Manchester) was a University in Manchester, England. Drogheda (ˈdrɒhədə ˈdrɔːdə ( Droichead Átha in Irish, meaning "Bridge of the Ford" is an industrial and port town in County Louth on Events 324 - Licinius abdicates his position as Roman Emperor. Year 1887 ( MDCCCLXXXVII) was a Common year starting on Saturday (link will display the full calendar of the Gregorian calendar (or a Common

He was the author of several successful textbooks of science, and also of the article on "Terrestrial Magnetism" in the ninth edition of the Encyclopædia Britannica. In conjunction with Professor P. G. Tait he wrote The Unseen Universe, at first published anonymously, which was intended to combat the common notion of the incompatibility of science and religion. Peter Guthrie Tait ( April 28, 1831 - July 4, 1901) was a Scottish mathematical physicist, best known for the seminal energy A devoted churchman, Stewart was prominently identified with the Society for Psychical Research. The Society for Psychical Research ( SPR) is a Non-profit organization which started in the United Kingdom and was later imitated in other countries [1] It was in his 1875 review of The Unseen Universe, that William James first put forth his Will to Believe Doctrine. "The Will to Believe" is the title of William James 's classic lecture (published in 1897 defending the adoption of beliefs as Hypotheses and self-fulfilling

Contents 1 Obituary 2 Stewart Super Flare 3 Writings 4 References

Obituary

Dr. Balfour Stewart^[1] was born in Edinburgh on November 1st, 1828, and died in Ireland on December 18th, 1887, having just entered his sixtieth year. Edinburgh ( ˈɛdɪnb(ərə Dùn Èideann) is the Capital of Scotland and is its second largest city after Glasgow. Events 996 - Emperor Otto III issues a deed to Gottschalk Bishop of Freising which is the oldest known document using the name Ostarrîchi The year 1828 ( MDCCCXXVIII) was a Leap year starting on Tuesday (link will display the full calendar of the Gregorian Calendar (or a Leap Ireland (pronounced /ˈaɾlənd/ Éire) is the third largest island in Europe, and the twentieth-largest island in the world Events 218 BC - Second Punic War: Battle of the Trebia - Hannibal 's Carthaginian forces defeat those of the Year 1887 ( MDCCCLXXXVII) was a Common year starting on Saturday (link will display the full calendar of the Gregorian calendar (or a Common He was educated for a mercantile profession, and in fact spent some time in Leith, and afterwards in Australia, as a man of business. Formerly a municipal Burgh, Leith (Lìte is a district in the north of the city of Edinburgh at the mouth of the Water of Leith and is the port For a topic outline on this subject see List of basic Australia topics. But the bent of his mind towards physical science was so strong that he resumed his studies in Edinburgh University, and soon became assistant to Professor J. D. Forbes, of whose class he had been a distinguished member. Physical science is an encompassing term for the branches of Natural science and Science that study non-living systems in contrast to the biological sciences The University of Edinburgh (Oilthigh Dhùn Èideann founded in 1582 is a renowned centre for teaching and research in Edinburgh, Scotland, UK. James David Forbes ( April 20, 1809 - December 31, 1868) was a Scottish Physicist who worked extensively on the conduction This association with one of the ablest experimenters of the day seems to have had much influence on his career; for Forbes's researches (other than his Glacier work) were mainly in the department of Heat, Meteorology, and Terrestrial Magnetism, and it was to these subjects that Stewart devoted the greater part of his life. James David Forbes ( April 20, 1809 - December 31, 1868) was a Scottish Physicist who worked extensively on the conduction "Glacial" and "Glaciation" redirect here For the geological periods see Glacial period. In Physics, heat, symbolized by Q, is Energy transferred from one body or system to another due to a difference in Temperature Meteorology (from Greek grc μετέωρος metéōros, "high in the sky" and grc -λογία -logia) is the Interdisciplinary Journal of Geophysical Research is the premier journal of the American Geophysical Union. In the classes of Professor Kelland, Stewart had a brilliant career; and gave evidence that he might have become a mathematician, had he not confined himself almost exclusively to experimental science. Philip Kelland (1808&mdash 7 May 1879) was a British mathematician A mathematician is a person whose primary area of study and research is the field of Mathematics. In scientific inquiry an experiment ( Latin: Ex- periri, "to try out" is a method of investigating particular types of research questions or

In 1858, while he was still with Forbes, Stewart completed the first set of his investigations on Radiant Heat, and arrived at a remarkable extension of Prevost's “Law of Exchanges. Year 1858 ( MDCCCLVIII) was a Common year starting on Friday (link will display the full calendar of the Gregorian Calendar (or a Common James David Forbes ( April 20, 1809 - December 31, 1868) was a Scottish Physicist who worked extensively on the conduction Thermal radiation is Electromagnetic radiation emitted from the surface of an object which is due to the object's Temperature. Pierre Prévost ( 3 March 1751 - 8 April 1839) was a Swiss Philosopher and Physicist. " His paper (which was published in the 'Transactions of the Royal Society of Edinburgh') contained the greatest step which had been taken in the subject since the early days of Melloni and Forbes. The Royal Society of Edinburgh is Scotland 's National academy of science and letters Macedonio Melloni ( April 11 1798 – August 11 1854) was an Italian Physicist, notable for demonstrating that Radiant James David Forbes ( April 20, 1809 - December 31, 1868) was a Scottish Physicist who worked extensively on the conduction The fact that radiation is not a mere surface phenomenon, but takes place like absorption throughout the interior of bodies, was seen to be an immediate consequence of the new mode in which Stewart viewed the subject. Stewart's reasoning is, throughout, of an extremely simple character, and is based entirely upon the assumption (taken as an experimentally ascertained fact) that in an enclosure, impervious to heat and containing no source of heat, not only will the contents acquire the same temperature, but the radiation at all points and in all directions will ultimately become the same, in character and in intensity alike. It follows that the radiation is, throughout, that of a black body at the temperature of the enclosure. In Physics, a black body is an object that absorbs all light that falls on it From this, by the simplest reasoning, it follows that the radiating and absorbing powers of any substance must be exactly proportional to one another (equal, in fact, if measured in proper units), not merely for the radiation as a whole, but for every definitely specified constituent of it. In Stewart's paper (as in those of the majority of young authors) there was a great deal of redundant matter, intended to show that his new views were compatible with all that had been previously known, and in consequence his work has been somewhat lightly spoken of, even by some competent judges. These allow that he succeeded in showing that equality of radiation and absorption is consistent with all that was known; but they refuse to acknowledge that he had proved it to be necessarily true. To such we would recommend a perusal of Stewart's article in the 'Philosophical Magazine' (vol. The Philosophical Magazine is arguably the world’s oldest commercially published Scientific journal. 25, 1863, p. Year 1863 ( MDCCCLXIII) was a Common year starting on Thursday (link will display the full calendar of the Gregorian calendar (or a Common 354), where they will find his own views about the meaning of his own paper. The only well-founded objection which has been raised to Stewart's proof applies equally to all proofs which have since been given, viz. , in none of them is provision made for the peculiar phenomena of fluorescence and phosphorescence. Fluorescence is a Luminescence that is mostly found as an Phosphorescence is a specific type of Photoluminescence related to fluorescence.

The subject of radiation, and connected properties of the lumini-ferous medium, occupied Stewart's mind at intervals to the very end of his life, and led to a number of observations and experiments, most of which have been laid before the Royal Society. In the late 19th century " luminiferous aether " (or " ether " meaning light-bearing aether, was the term used to describe a medium for the propagation Such are the “Observations with a Rigid Spectroscope," and those on the "Heating of a Disk by rapid Rotation in vacuo" in which the present writer took part. Other allied speculations are on the connexion between “Solar Spots and Planetary Configurations," and on “Thermal Equilibrium in an Enclosure containing Matter in Visible Motion. A sunspot is a region on the Sun 's surface ( Photosphere) that is marked by intense magnetic activity which inhibits Convection, forming In Thermodynamics, a thermodynamic system is said to be in thermodynamic equilibrium when it is in thermal equilibrium Mechanical equilibrium, and "

From 1859 to 1870 Stewart occupied, with distinguished success, the post of Director of the Kew Observatory^[2]. Year 1859 ( MDCCCLIX) was a Common year starting on Saturday (link will display the full calendar of the Gregorian calendar (or a Common Year 1870 ( MDCCCLXX) was a Common year starting on Saturday (link will display the full calendar of the Gregorian calendar (or a Common Kew Observatory was an astronomical and terrestrial magnetic Observatory located in Kew, London, England. Thence he was transferred to Manchester as Professor of Physics in the Owens College, in which capacity he remained till his death. The Victoria University of Manchester (commonly known as the University of Manchester) was a University in Manchester, England. His main subject for many years was Terrestrial Magnetism; and on it he wrote an excellent article for the recent edition of the 'Encyclopædia Britannica. Journal of Geophysical Research is the premier journal of the American Geophysical Union. The Encyclopædia Britannica is a general English-language encyclopaedia published by Encyclopædia Britannica Inc ' A very complete summary of his work on this subject has been given by Schuster in the 'Manchester Memoirs' (4th series, vol. Sir Franz Arthur Friedrich Schuster FRS ( September 12 1851 &ndash October 17 1934) was a versatile German -born British The Manchester Literary and Philosophical Society is a Learned society in Manchester, England. 1, 1888). In the same article will be found a complete list of Stewart's papers.

Among the separate works published by Stewart, his 'Treatise on Heat,' which has already reached its fifth edition, must be specially mentioned. It is an excellent introduction to the subject, though written much more from the experimental than from the theoretical point of view. In the discussion of radiation, however, which is given considerable length, a great deal of theoretical matter of a highly original character is introduced.

On another work, in which Stewart took a great part, 'The Unseen Universe,' the writer cannot speak at length. It has passed through many editions, and has experienced every variety of reception — from hearty welcome and approval in some quarters to the extremes of fierce denunciation, or of lofty scorn, in others. Whatever its merits or demerits it has undoubtedly been successful in one of its main objects, viz. , in showing how baseless is the common statement that “Science is incompatible with Religion. Science (from the Latin scientia, meaning " Knowledge " or "knowing" is the effort to discover, and increase human understanding A religion is a set of Tenets and practices often centered upon specific Supernatural and moral claims about Reality, the Cosmos " It calls attention to the simple fact, ignored by too many professed instructors of the public, that human science has its limits; and that there are realities with which it is altogether incompetent to deal.

Personally, Stewart was one of the most loveable of men, modest and unassuming, but full of the most weird and grotesque ideas. His conversation could not fail to set one a-thinking, and in that respect he was singularly like Clerk-Maxwell. James Clerk Maxwell (13 June 1831 &ndash 5 November 1879 was a Scottish mathematician and theoretical physicist. In 1870 he met with a frightful railway accident, from the effects of which he never fully recovered. Year 1870 ( MDCCCLXX) was a Common year starting on Saturday (link will display the full calendar of the Gregorian calendar (or a Common He passed in a few months from the vigorous activity of the prime of life to grey-headed old age. But his characteristic patience was unruffled and his intellect unimpaired.

He became a Fellow of the Royal Society in 1862, and in 1868 he received the Rumford Medal. The Royal Society of London for the Improvement of Natural Knowledge, known simply as The Royal Society, is a Learned society for science that was founded in 1660 Year 1862 was a Common year starting on Wednesday (link will display the full calendar of the Gregorian calendar (or a Common year starting on Monday Year 1868 ( MDCCCLXVIII) was a Leap year starting on Wednesday (link will display the full calendar of the Gregorian Calendar (or a Leap Not to be confused with the Rumford Prize In 1796, Benjamin Thompson known as Count Rumford, gave $5000 separately to the Royal

His life was an active and highly useful one; and his work, whether it took the form of original investigation, of accurate and laborious observation, or of practical teaching, was always heartily and conscientiously carried out. When a statement such as this can be truthfully made, it needs no amplification.
P.G.T.

Stewart Super Flare

While much attention has been focused on the Carrington Super Flare, which occurred on September 1, 1859 and the associated magnetic storm for which reached the Earth on September 2, 1859, there was an earlier super flare on August 28, 1859, which was documented on the self-recording magnetographs at the Kew Observatory and described by Balfour Stewart ^[3][4] in a paper presented to the Royal Society on November 21, 1861. Peter Guthrie Tait ( April 28, 1831 - July 4, 1901) was a Scottish mathematical physicist, best known for the seminal energy Richard Christopher Carrington ( May 26 1826 &ndash November 27 1875) was an English amateur Astronomer who discovered Events 462 - Possible start of first Byzantine indiction cycle. Year 1859 ( MDCCCLIX) was a Common year starting on Saturday (link will display the full calendar of the Gregorian calendar (or a Common A geomagnetic storm or solar storm is a temporary disturbance of the Earth 's Magnetosphere caused by a disturbance in Space weather. Events 44 BC - Pharaoh Cleopatra VII of Egypt declares her son co-ruler as Ptolemy XV Caesarion. Year 1859 ( MDCCCLIX) was a Common year starting on Saturday (link will display the full calendar of the Gregorian calendar (or a Common Events 475 - The Roman General Orestes forces western Roman Emperor Julius Nepos to flee his Capital Year 1859 ( MDCCCLIX) was a Common year starting on Saturday (link will display the full calendar of the Gregorian calendar (or a Common Kew Observatory was an astronomical and terrestrial magnetic Observatory located in Kew, London, England. The Royal Society of London for the Improvement of Natural Knowledge, known simply as The Royal Society, is a Learned society for science that was founded in 1660 Events 164 BC - Judas Maccabaeus, son of Mattathias of the Hasmonean family restores the Temple in Jerusalem. Year 1861 ( MDCCCLXI) was a Common year starting on Tuesday (link will display the full calendar of the Gregorian calendar (or a Common

It is unnecessary to enter into further particulars regarding this meteor, as the description of it given by observations at places widely apart have been collected together by Professor E. Loomis, and published in a serious of papers communicated to the American Journal of Science and Arts. Elias Loomis (August 7 1811 &ndash August 15 1889 was an American Mathematician. The American Journal of Science ( AJS) is America's longest-running Scientific journal, having been published continuously since its conception in 1818 by Professor I shall only add that, both from the European, the American, and the Australian accounts, there appear to have been two great displays, each commencing at nearly the same absolute time, throughout the globe, —the first on the evening of the 28th of August, and the second on the early morning of the 2nd of September, Greenwich time. The Americas are the lands of the Western hemisphere or New World, consisting of the Continents of North America and South America For a topic outline on this subject see List of basic Australia topics. Greenwich Mean Time ( GMT) is a term originally referring to mean solar time at the Royal Observatory in Greenwich, London

Magnetic disturbances of unusual violence and very wide extent were observed simultaneously with these displays. These were recorded more or less frequently at the various observatories; but at Kew there is the advantage of a set of self-recording magnetographs (the property of the Royal Society), which are in constant operation. A magnetograph is one of two types of Scientific instrument: A special type of Magnetometer that records a time plot of the local magnetic field The Royal Society of London for the Improvement of Natural Knowledge, known simply as The Royal Society, is a Learned society for science that was founded in 1660

As a description of these instruments has already been published^[5] in the volume of the Reports of the British Association for 1859, it is only necessary here to mention that they afford the means of obtaining a continuous photographic register of the state of the three elements of the earth’s magnetic force—namely, the declination, and the horizontal and vertical intensity. Year 1859 ( MDCCCLIX) was a Common year starting on Saturday (link will display the full calendar of the Gregorian calendar (or a Common Reduced representations of these traces furnished by these instruments during the great disturbance under discussion accompany this paper; and it will now be necessary to give a short description of these.

Stewart goes on the make the following observation.

I now proceed to notice some of the peculiarities of this magnetic storm.

It appears that we have two distinct well-marked disturbances, each commencing abruptly and ending gradually, the first of which began on the evening of August 28 and the second on the early morning of September 2. Events 475 - The Roman General Orestes forces western Roman Emperor Julius Nepos to flee his Capital Events 44 BC - Pharaoh Cleopatra VII of Egypt declares her son co-ruler as Ptolemy XV Caesarion. These two great disturbances correspond therefore in point of time to the two great auroral displays already alluded to.

The second disturbance is now known as the Carrington Super Flare, while the fist disturbance is unnamed. Richard Christopher Carrington ( May 26 1826 &ndash November 27 1875) was an English amateur Astronomer who discovered As Stewart recorded and described this disturbance, this event will be referred to as the Steward Super Flare in this discussion.

At the November 11, 1859 meeting of the Royal Astronomical Society, Richard Carrington presented a paper^[6] describing his observations of the super flare which occurred on September 1, at 11:18 GMT and later named in his honor. The Royal Astronomical Society (RAS is a Learned society that began as the Astronomical Society of London in 1820 to support astronomical research Richard Christopher Carrington ( May 26 1826 &ndash November 27 1875) was an English amateur Astronomer who discovered In what appears to be a editorial addition made after the meeting the follow observation was appended in parenthesis.

(Mr. Carrington exhibited at the November Meeting of the Society a complete diagram of the disk of the sun at the time, and copies of the photographic records of the variations of the three variations of the three magnetic elements, as obtained at Kew, and pointed out that a moderate but very marked disturbance took place at about 11^h 20^m A. Richard Christopher Carrington ( May 26 1826 &ndash November 27 1875) was an English amateur Astronomer who discovered The Royal Astronomical Society (RAS is a Learned society that began as the Astronomical Society of London in 1820 to support astronomical research Kew Observatory was an astronomical and terrestrial magnetic Observatory located in Kew, London, England. M. , Sept. 1st, of short duration; and that towards four hours after midnight there commenced a great magnetic storm, which subsequent accounts established to be considerable in the southern as in the northern hemisphere. While the contemporary occurrence may deserve noting, he would not have it supposed that he even leans towards hastily connecting them. “One swallow does not make a summer. ”)

From this addendum, it is clear that Richard Carrington was not willing to professionally commit to connecting the magnetic disturbance with the event he had observed on the surface of the sun even though they occurred at nearly identical times and he displayed the magnetographs at the Royal Astronomical Society meeting. Richard Christopher Carrington ( May 26 1826 &ndash November 27 1875) was an English amateur Astronomer who discovered The Royal Astronomical Society (RAS is a Learned society that began as the Astronomical Society of London in 1820 to support astronomical research The time of 11:20 GMT is good agreement with other reports but the time of 4:00 GMT on September 2, 1859 for the commencement of the magnetic storm is an hour earlier than reported by Stewart.

Stewart also reported^[4] on the magnetic disturbance which occurred at the same time as the event observed by Richard Carrington. Richard Christopher Carrington ( May 26 1826 &ndash November 27 1875) was an English amateur Astronomer who discovered

But, beside these two remarkable disturbances into which it divided itself, this great storm comprehends a minor disturbance, not approaching these two in extent, but yet possessing an interest peculiar to itself, which entitles it to be mentioned.

On September 1, a little before noon, Mr. R.C. Carrington happened to be observing, by means of a telescope, a large spot which might then be seen on the surface of our luminary, when a remarkable appearance presented itself, which he described in a communications to the Royal Astronomical Society. Richard Christopher Carrington ( May 26 1826 &ndash November 27 1875) was an English amateur Astronomer who discovered The Royal Astronomical Society (RAS is a Learned society that began as the Astronomical Society of London in 1820 to support astronomical research

(Richard Carrington’s paper is then quoted at length. )

On calling at Kew Observatory a day or two afterwards, Mr. Carrington learned that at the very moment when he had observed this phenomena the three magnetic elements at Kew were simultaneously disturbed. Kew Observatory was an astronomical and terrestrial magnetic Observatory located in Kew, London, England. Richard Christopher Carrington ( May 26 1826 &ndash November 27 1875) was an English amateur Astronomer who discovered If no connexion had been known to subsist between these two classes of phenomena, it would, perhaps, be wrong to consider this in any other light than a casual coincidence; but since General Sabine has proved that a relation subsists between magnetic disturbances and sun spots, it is not impossible to suppose that in this case our luminary was taken in the act. General Sir Edward Sabine KCB FRS ( October 14, 1788 &ndash May 26, 1883) was an Irish Astronomer A sunspot is a region on the Sun 's surface ( Photosphere) that is marked by intense magnetic activity which inhibits Convection, forming

This disturbance occurred as nearly as possible at 11^h 15^m A. M. Greenwich mean time, on September 1, 1859, affecting all the elements simultaneously, and commencing quite abruptly.

By sighting the previous research of Edward Sabine, which established a correlation between sunspots and magnetic storms, Stewart was able to correctly advance the theory that the event observed by Richard Carrington and the magnetic disturbance which was recorded at the same time were in fact connected. General Sir Edward Sabine KCB FRS ( October 14, 1788 &ndash May 26, 1883) was an Irish Astronomer A sunspot is a region on the Sun 's surface ( Photosphere) that is marked by intense magnetic activity which inhibits Convection, forming A geomagnetic storm or solar storm is a temporary disturbance of the Earth 's Magnetosphere caused by a disturbance in Space weather. Richard Christopher Carrington ( May 26 1826 &ndash November 27 1875) was an English amateur Astronomer who discovered The magnetic phenomena which occurred at about 11:18 GMT on September 1, 1858 are now known as a Solar Flare Effect (SFE) or a Magnetic Crochet, but the connection would not be proven for another 80 years^[7]. The SEF is a sudden ionosphere disturbances caused by soft X-rays and Extreme ultraviolet (EUV) driven enhancement of the ionosphere current vortices responsible for the regular daily variation observed on magnetometer traces. X-radiation (composed of X-rays) is a form of Electromagnetic radiation. Extreme Ultra-Violet radiation (EUV is generally considered to be the part of the Electromagnetic spectrum spanning from 120 nm down to 10 nm SFE are mostly observed in locations close to the sub-solar point (i. e. the point on earth when the sun is overhead) and can only be observed from stations in the sunlit hemisphere at the time of the solar flare. Using Stewart’s times, the magnetic storm associated with the Carrington Super Flare took 17 hours and 45 minutes to reach the Earth. A geomagnetic storm or solar storm is a temporary disturbance of the Earth 's Magnetosphere caused by a disturbance in Space weather.

Stewart reported that the magnetic storm from the Steward Supper Flare, began at 22:30 GMT on the evening of September 28, 1859 as recorded by self-recording magnetographs at the Kew Observatory. A geomagnetic storm or solar storm is a temporary disturbance of the Earth 's Magnetosphere caused by a disturbance in Space weather. Assuming that the transit time for the first super flare was the same as the second or 17 hours and 45 minutes, the Steward Supper Flare occurred at about 04:45 GMT on the morning of September 28, 1859. As the Solar Flare Effect can only be observed from the sunlit hemisphere the question becomes, what time was sunrise at the Kew Observatory on the morning of September 28, 1859?

The coordinates for Kew Observatory are (51°29'N, 0°17'W). Kew Observatory was an astronomical and terrestrial magnetic Observatory located in Kew, London, England. Kew Observatory was an astronomical and terrestrial magnetic Observatory located in Kew, London, England. Using the US Naval Observatory “Sun or Moon Rise/Set Table for One Year” calculator,sunrise on the morning of August 28, 1859 sunrise was 05:06GMT. The United States Naval Observatory ( USNO) is one of the oldest Scientific agencies in the United States. The Kew Observatory was still 21 minutes from sunrise and the Solar Flare Effect would not have been registered by the self-recording magnetographs at the Kew Observatory. Kew Observatory was an astronomical and terrestrial magnetic Observatory located in Kew, London, England.

Steward did not publish the magnetograph records for the morning of August 28, 1859. A magnetograph is one of two types of Scientific instrument: A special type of Magnetometer that records a time plot of the local magnetic field While it is extremely unlikely, the original magnetograph records for that date should be inspected to determine if any disturbance was recorded because of the uncertainties in timings and the nearness of sunrise. A magnetograph is one of two types of Scientific instrument: A special type of Magnetometer that records a time plot of the local magnetic field

Writings

• Elementary Treatise on Heat (1866; sixth edition, revised, 1895)
• Lessons in Elementary Physics (1871)
• Physics (1872)
• The Conservation of Energy (1875; ninth edition, 1900)
• Lessons in Practical Physics with W. H. Gee, (volume i, 1885; volume ii, 1887)
• Books by Balfour Stewart available in the Internet Archive
• Books by Balfour Stewart available in Google Books
• Papers by Balfour Stewart available in Google Scholar

References

• This article incorporates text from the Encyclopædia Britannica Eleventh Edition, a publication now in the public domain. The Encyclopædia Britannica Eleventh Edition (1910–1911 is a 29-volume reference work that marked the beginning of the Encyclopædia Britannica The public domain is a range of abstract materials &ndash commonly referred to as Intellectual property &ndash which are not owned or controlled by anyone

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