British Banknotes 20 Pound Sterling note 1993 Michael Faraday
Bank of England
Obverse: Portrait of Her Majesty Queen Elizabeth II at right. Seated Britannia as logo of Bank of England at left. Denominations in numerals are in top corners. In center in words. Signatures: Graham Edward Alfred Kentfield, Chief Cashier of the Bank of England.
Reverse: Portrait of Michael Faraday (1791 – 1867) was an English scientist who contributed to the fields of electromagnetism and electrochemistry. His main discoveries include those of electromagnetic induction, diamagnetism and electrolysis.
On the left side, Faraday presents his Magneto-Electric Spark apparatus at the Royal Institution Christmas Lecture in 1826.
Watermark: Her Majesty Queen Elizabeth II in young age.
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In preparation for the "E Series" of notes, issued by the Bank of England, photographs of The Queen were especially commissioned by the Bank. The photographs were taken by Don Ford in 1985-1986, one of the Bank’s technical photographers, under the direction of Roger Withington. Mr. Withington designed the notes of the "E Series" and prepared the engraving of the Queen, which appeared on this series of notes, from one of the photographs taken by Mr. Ford. The portrait shows Queen Elizabeth wearing Queen Mary’s "Girls of Great Britain and Ireland" Tiara, Queen Alexandra’s cluster earrings and, although difficult to identify, Queen Victoria’s Golden Jubilee necklace.
5 Pounds George Stephenson 10 Pounds Charles Dickens
20 Pounds Michael Faraday 50 Pounds Sir John Houblon
20 Pounds Michael Faraday 50 Pounds Sir John Houblon
The new series of notes. The £20 was first issued on 1st January 1999, and the £10 on 7th November 2000. The £10 note is the first to have the metallic security thread 'windowed' on the reverse rather than the front of the note.
Michael Faraday
Michael Faraday (22 September 1791 – 25 August 1867) was an English scientist who contributed to the fields of electromagnetism and electrochemistry. His main discoveries include those of electromagnetic induction, diamagnetism and electrolysis.
Although Faraday received little formal education, he was one of the most influential scientists in history. It was by his research on the magnetic field around a conductor carrying a direct current that Faraday established the basis for the concept of the electromagnetic field in physics. Faraday also established that magnetism could affect rays of light and that there was an underlying relationship between the two phenomena. He similarly discovered the principle of electromagnetic induction, diamagnetism, and the laws of electrolysis. His inventions of electromagnetic rotary devices formed the foundation of electric motor technology, and it was largely due to his efforts that electricity became practical for use in technology.
As a chemist, Faraday discovered benzene, investigated the clathrate hydrate of chlorine, invented an early form of the Bunsen burner and the system of oxidation numbers, and popularised terminology such as anode, cathode, electrode, and ion. Faraday ultimately became the first and foremost Fullerian Professor of Chemistry at the Royal Institution of Great Britain, a lifetime position.
Faraday was an excellent experimentalist who conveyed his ideas in clear and simple language; his mathematical abilities, however, did not extend as far as trigonometry or any but the simplest algebra. James Clerk Maxwell took the work of Faraday and others, and summarized it in a set of equations that is accepted as the basis of all modern theories of electromagnetic phenomena. On Faraday's uses of the lines of force, Maxwell wrote that they show Faraday "to have been in reality a mathematician of a very high order – one from whom the mathematicians of the future may derive valuable and fertile methods." The SI unit of capacitance is named in his honour: the farad.
Albert Einstein kept a picture of Faraday on his study wall, alongside pictures of Isaac Newton and James Clerk Maxwell. Physicist Ernest Rutherford stated; "When we consider the magnitude and extent of his discoveries and their influence on the progress of science and of industry, there is no honour too great to pay to the memory of Faraday, one of the greatest scientific discoverers of all time".