Georg om years of life. Georg Simon Ohm - the great scientist of the people

Georg Simon Ohm(German Georg Simon Ohm; March 16, 1787, Erlangen - July 6, 1854, Munich) - German physicist. He theoretically deduced and confirmed by experience the law expressing the relationship between the current strength in the circuit, voltage and resistance (known as Ohm's law). The unit of electrical resistance (ohm) is named after him.

Biography

Georg Simon Ohm was born on March 16, 1787 in Erlangen, Germany (then part of the Holy Roman Empire). George's mother, Elisabeth Maria, came from a tailor's family and died in childbirth when George was nine years old. His father, Johann Wolfgang, a locksmith, a very developed and educated person, from childhood was engaged in the education of his son, and independently taught him mathematics, physics and philosophy. He sent Georg to study at the gymnasium, which was supervised by the university. After completing the course in 1805, Ohm began to study mathematics at the University of Erlangen. Already after three semesters in 1806, having left the university, he took the place of a teacher in the Gotstadt monastery (now part of the Swiss commune of Orpund).

In 1809 he left Switzerland and, settling in Neuenburg, devoted himself wholly to the study of mathematics. In 1811 he returned to Erlangen, already in the same year he managed to graduate from the university, defend his dissertation and receive a Ph.D. Moreover, he was immediately offered the position of Privatdozent of the Department of Mathematics at the university. In this capacity, he worked until 1813, when he took a position as a teacher of mathematics in Bamberg (1813-1817), from where he moved to the same position in Cologne (1817-1826). During his stay in Cologne, Ohm published his famous works on the theory of the galvanic circuit.

A number of troubles forced him to leave his post in 1826 (on the personal instructions of the Minister of Education, he was dismissed from work at the school for publishing his discoveries in the field of physics in newspapers). For 6 years, despite very cramped circumstances, Om devoted himself exclusively to scientific work and only in 1833 accepted an offer to take the position of professor of physics at the Polytechnic School in Nuremberg.

In 1842 he became a member of the Royal Society of London. In 1849, Ohm, already quite famous, was invited as a professor of physics to Munich and appointed there as a conservator of the physical and mathematical collections of the Academy of Sciences. He remains here until his death on July 6, 1854. He was buried in the Old South Cemetery. In Munich, in 1892, a monument was erected to Ohm, and in 1881, at the international congress of electricians in Paris, it was decided to name the now generally accepted unit after him. electrical resistance("one ohm").

Discoveries

Most notable works Ohm dealt with questions about the passage of electric current and led to the famous "Ohm's law", which relates the resistance of an electric current circuit, voltage and current strength. In his first scientific work (“Vorlufige Anzeige des Gesetzes, nach welchem ​​Metalle die Contactelectricitt leiten”, 1825), Ohm experimentally investigates these phenomena, but, due to the imperfection of the instruments, comes to an erroneous result. In a subsequent work (“Bestimmung des Gesetzes, nach welchem ​​Metalle die Contactelektricitt leiten”, 1826), Ohm formulates his famous law and then combines all his works on this issue in the book: “Die galvanische Kette, mathematisch bearbeitet” (B., 1827; republished by Moser in Leipzig, 1887; translated into English in 1841, Italian in 1847 and French in 1860), in which he also gives a theoretical derivation of his law, based on a theory similar to Fourier's theory of heat conduction. Despite the importance of these works, they went unnoticed and were even met with hostility, and only when Poulier in France again came (1831-1837), empirically, to the same results, Ohm's law was adopted by the scientific world, and the Royal Society of London at a meeting of 30 November 1841 awarded Ohm the Copley Medal.

Ohm's discovery, which made it possible for the first time to quantitatively consider the phenomena of electric current, was and is of great importance for science; all theoretical (Helmholtz) and experimental (Betz, Kohlrausch, British Association Commission) checks showed its complete accuracy; Ohm's law is the true law of nature.

OM GEORGE SIMON

(1787 - 1854)

If you don't know Ohm's law, stay at home.

school folklore

The famous German physicist Georg Simon Ohm was born on March 16, 1787 in the city of Erlangen. His father, Johann Wolfgang Ohm, was a locksmith who did a lot of self-education. Mother, Maria Elizabeth Beckin, came from a blacksmith's family. Seven children were born in the family, but only three of them survived: Georg Simon, his younger brother Martin and sister Barbara. Mary Elizabeth died in childbirth in 1799. Johann Wolfgang, who adored his wife, never fully recovered from this blow, and until the end of his life he bitterly recalled that his children had lost "the best and most tender of mothers." However, despite the misfortune that befell him, he did not give up and devoted himself entirely to raising his sons and daughter. To provide his children with everything necessary, he had to work very hard. But at the same time, he found time to communicate with them, did everything possible to give them a decent education.

The first teacher of the great physicist was ... a certain former hosiery, who maintained his own educational institution. However, his lack of pedagogical education was more than compensated for by a clear, lively mind and sincere love for his work. It was he who gave Georg Simon primary education and prepared him for admission to the gymnasium.

I must say that in the city gymnasium of Erlangen, the main attention was paid to languages ​​- Latin and Greek. As for the exact sciences, such as mathematics and physics, then, if not for their father, Martin and Georg would have had a rather vague idea about them. The fact is that Johann Wolfgang Om was in awe of science and spent a lot of time reading; along with manuals on metal processing, he read books on mathematics, physics, chemistry, philosophy, history and geography. When Georg and Martin grew up, the father personally took care of their education, doing everything possible to ensure that the children shared his love for science. It is interesting that subsequently the children also helped their father's self-education. For example, Georg, who knew Latin perfectly, translated Euler's work "Integral Calculus", and Johann Wolfgang rewrote and thoroughly studied this book.

It should be said that the efforts of the father were crowned with success. One of his friends, professor of mathematics Karl Christian von Langsdorf, having examined George at the end of the gymnasium, was struck by the systematic and deep knowledge of his knowledge: mechanics, and also found out his knowledge in the field of higher geometry and mathematical analysis. All my questions were answered quickly and accurately. I am almost convinced that both brothers from this family will become no less famous than the Bernoulli brothers: having such zeal and having such talent, they will enrich science if they find appropriate attention and support.

In 1805, Georg Simon successfully passed the entrance exams and became a student at the University of Erlangen. However, paradoxically, studying at the university did not inspire the gifted young man to conquer new scientific heights. Instead of selflessly chewing on the granite of science, Georg devoted almost all his time to dancing, skating and playing billiards. True, in fairness, it is worth noting that here he achieved considerable success: he became the best billiard player and speed skater at the university. However, his son's athletic achievements did not please his father at all, moreover, they were infuriated. Johann Wolfgang, who, for all his love of science, did not have the opportunity to receive higher education, believed that his son should focus exclusively on his studies. However, Georg was in no hurry to heed the advice of his parent. In the end, the father, who still worked very hard and hard to provide for his children with everything they needed, demanded that his son leave the university. Thus, in 1806, after studying for only three semesters, Ohm left the walls of Erlangen University and went to the Swiss city of Gottstadt, where he was offered a position as a teacher of mathematics in a private school.

The young man was able to return to his hometown and continue his studies at the university only five years later, in 1811. Om did everything to make up for lost time: in the same year he graduated from the university, defended his dissertation and received a degree. Georg's brilliant abilities did not go unnoticed: he was offered the position of Privatdozent in the Department of Mathematics.

It would seem that everything worked out for the best. But after a year and a half, Om was forced to give up his position, since the earnings of a Privatdozent barely allowed him to make ends meet. For several months, Georg unsuccessfully tried to find a job, until the Bavarian government offered him a position as a teacher of physics and mathematics at a school in Bamberg. Of course, this work was not the ultimate dream of Ohm, and the teaching methods so outraged him that he even wrote a letter with critical remarks to the General Commissariat for Teaching. As a result, the school was closed and Om transferred to a local prep school.

In 1817, the first work of Georg Ohm was published - an extensive note on teaching methods. Separate considerations were so new and unusual that they gave rise to talk that Ohm's ideas meant "the death of the entire mathematical doctrine."

In September 1817, Georg Ohm was offered a position as a teacher of physics and mathematics at the Jesuit College of Cologne. In this case, he gladly accepted the offer, since this educational institution had an excellent physical laboratory. In Cologne Ohm finally had the opportunity to do science, and he did not fail to take advantage of it. Georg continued to educate himself, read books by outstanding physicists, and began to conduct independent research. As in the case of Ampere, the stimulus for the study of electrical laws was the discovery of the discovery of Oersted, who in 1820 discovered the magnetic effect of electric current. Ohm suggested that this effect could be used to measure the strength of current (before that, scientists tried to use the heat that causes the current to measure). Ohm created a device in which the current flowing through the conductor caused the rotation of a magnetic needle, fixed by an elastic wire. By compensating the deflection of the arrow by turning the micrometric screw, the experimenter could determine the current strength by the angle of rotation.

Initially, Ohm's experiments involved galvanic current sources. But the scientist was not satisfied with the fact that the current in them weakens rather quickly. In 1821, the German physicist Thomas Johann Seebeck discovered the thermoelectric effect: if the junctions of two different conductors have different temperatures, a current appears in the circuit. This discovery allowed Ohm to use in his experiments more stable thermoelements, consisting of bismuth and copper. One end of the thermoelement was in boiling water, and the other end was in melting snow. Having a fairly stable current source, Ohm began to study how the parameters of conductors affect the current: their size and chemical nature. In 1826, he set out his results in the article "Determination of the law according to which metals conduct contact electricity, together with a sketch of the theory of the voltaic apparatus of the Schweigger multiplier".

In his work, Ohm introduced the concept of "resistance" and showed that it depends on the material of the conductor, its length and cross-sectional area. Needless to say, the law mentioned in the epigraph of this article was the very famous Ohm's law. But Ohm's contemporaries, venerable German scientists, did not pay much attention to the work of the obscure teacher. The few who met her expressed, above all, incredulity. However, Ohm managed to get the administration of the college to give him a year for independent research, however, halving his salary. Georg hoped that his work would bring him fame and some university position. The scientist moved to Berlin, where his brother Martin lived, and plunged into research.

The result of a year of work was the book "Theoretical Study of Electrical Circuits". In it, Ohm tried to draw an analogy between electrical phenomena and the principles of the propagation of heat, which Jean Baptiste Joseph Fourier (1822) had recently outlined in his work Analytical Theory of Heat. By analogy with the spread of heat along a temperature gradient, Ohm connected the current with a drop in electrical voltages. The scientist achieved a lot in his practical researches. For example, he studied the patterns of current flow in electrical circuits in which conductors are connected in series and in parallel. "Theoretical study of electrical circuits" also did not cause enthusiasm in the scientific world. By September 1827, the year allotted for research came to an end, and no advantageous offer it didn't follow. Om had to return to his teaching duties. But he himself was well aware that the results obtained deserve attention. Therefore, Om did not want to leave Berlin. In the end, he found a meager (3 hours a week) teaching load at the Berlin Military School and remained in the capital.

In 1829 and 1830 Ohm published two important works: an article in which he outlined the principles of electrometry, and a great work "An attempt to create an approximate theory of unipolar conductivity", which attracted the attention of foreign scientists, in particular Faraday. Also in 1830, Ohm introduced the concept of "electromotive force" and measured the electromotive force of a current source.

Meanwhile, Ohm was still not recognized in Germany, he still did not have a proper position, in fact he was dependent on his brother. In desperation, he even wrote a letter to the King of Bavaria asking him to give him at least some place. But even that didn't work. Finally, in 1833, Ohm received an offer to become a professor of physics at the new Nuremberg Polytechnic School. After some time, he received the chair of mathematics and the position of inspector for teaching methods. In 1839 he became rector of the School. In 1842 Ohm became the second German scientist to be awarded the Copley medal and made a member of the Royal Society of London. At home, such recognition came only three years later, when Ohm was elected a member of the Bavarian Academy of Sciences. In 1849, the scientist received the post of curator of the physical cabinet of the Academy and, as an extraordinary professor, began to lecture at the University of Munich.

Georg Ohm is known not only for his work in the field of electrical phenomena. From the late 1830s, he became interested in acoustic phenomena and discovered one of the essential principles physiological acoustics (Ohm's acoustic law), according to which the ear decomposes complex sounds into simple harmonic vibrations.

Until the end of his days, Om was engaged in teaching methods. In recent years, he also set about creating a physics textbook, but managed to write only the first volume of the book Contribution to Molecular Physics.

In 1852, the scientist became a full professor at the University of Munich. Om dreamed of this position all his life. But he gave too much strength and energy to science. In 1854 he had a severe heart attack. On June 28, 1854, King Maximilian issued a decree exempting the scientist from compulsory lectures. But the monarch's care manifested itself too late. On July 7, Georg Ohm passed away.

Now in Munich there is a monument to the famous scientist. It consists of two figures: Johann Wolfgang Ohm, a locksmith who gave all his strength to teaching his sons, and Georg Simon Ohm himself, who devoted his whole life to science and never had a family or children.

Did you know, what is a thought experiment, gedanken experiment?
It is a non-existent practice, an otherworldly experience, the imagination of what is not really there. Thought experiments are like daydreams. They give birth to monsters. Unlike a physical experiment, which is an experimental test of hypotheses, a “thought experiment” magically replaces an experimental test with the desired, untested conclusions, manipulating logical constructions that actually violate logic itself by using unproved premises as proven ones, that is, by substitution. Thus, the main task of the applicants of "thought experiments" is to deceive the listener or reader by replacing a real physical experiment with his "doll" - fictitious reasoning on parole without physical verification itself.
Filling physics with imaginary, "thought experiments" has led to an absurd, surreal, confusing picture of the world. A real researcher must distinguish such "wrappers" from real values.

Relativists and positivists argue that the "thought experiment" is a very useful tool for testing theories (also arising in our minds) for consistency. In this they deceive people, since any verification can only be carried out by a source independent of the object of verification. The applicant of the hypothesis himself cannot be a test of his own statement, since the reason for this statement itself is the absence of contradictions visible to the applicant in the statement.

We see this in the example of SRT and GR, which have turned into a kind of religion that governs science and public opinion. No amount of facts that contradict them can overcome Einstein's formula: "If the fact does not correspond to the theory, change the fact" (In another version, "Does the fact not correspond to the theory? - So much the worse for the fact").

The maximum that a "thought experiment" can claim is only the internal consistency of the hypothesis within the framework of the applicant's own, often by no means true, logic. Compliance with practice does not check this. A real test can only take place in a real physical experiment.

An experiment is an experiment, because it is not a refinement of thought, but a test of thought. Thought that is consistent within itself cannot test itself. This has been proven by Kurt Gödel.

Life story
The remarkable German physicist Georg Simon Ohm (1787-1854), whose name bears the famous law of electrical engineering and the unit of electrical resistance, was born on March 16, 1789 in Erlangen (Federal State of Bavaria). His father was a well-known master mechanic in the city. The boy Om helped his father in the workshop and learned a lot from him. He would have been a mechanic and continued his father's work, but Om was ambitious, he wanted to become a scientist and work in the best German universities. He went to study at the university in Erlangen and graduated in 1813. His first job was as a teacher of physics and mathematics at a real school in Bamberg.
After several years at the school, Ohm's dream came true. In 1817 he became professor of mathematics at the Jesuit College in Cologne. Here Ohm engaged in research in the field of electricity, using the Volta battery. Ohm made up electrical circuits from conductors of various thicknesses, from various materials, of various lengths (moreover, he stretched the wire himself, using own technology), trying to understand the laws of these circuits. The complexity of its work can be understood by remembering that there were no measuring instruments yet and the strength of the current in the circuit could be judged by various indirect effects. Omu really benefited from the skills he had acquired while working in the workshop with his father. And he also really needed perseverance, because the experiments went on for 9 years.
To characterize the conductors, Ohm in 1820 introduced the concept of "resistance", it seemed to him that the conductor resists the current. In English and French, resistance is called resistance, so a modern circuit element is called a resistor, and the first letter R with light hand Ohm is still used today as a symbol for resistor in circuits. In 1827, Ohm's fundamental work "Mathematical Study of Galvanic Circuits" was published, in which Ohm's famous law was formulated.
It would seem that such a simple mathematical formula, which is now being studied in schools, should deserve universal recognition, but it turned out the other way around. Colleagues took hostility Om's conclusions, ridicule began at him. Offended, Om quit his college in Cologne. In the following years, Ohm lived in poverty, working as a private teacher in Berlin. Only in 1833 did he manage to get a job at the Polytechnic School in Nuremberg.
In the meantime, the importance of Ohm's work was recognized abroad. In 1841 the British Royal Society awarded him a gold medal, and in 1842 elected Om as a full member. Finally, in 1849, Ohm became a professor at the University of Munich. Only 5 years he had the opportunity to fully work and teach. July 7, 1854 Georg Simon Om died.
In 1893, the International Electrotechnical Congress decided to introduce a unit of electrical resistance and named it after Georg Simon Ohm, thus emphasizing the importance of his discovery for electrical engineering.

Georg Simon Ohm (German GeorgSimonOhm, 1787-1854) is a famous German physicist who developed and practically confirmed the law, which reflected the relationship between current strength, voltage and resistance. The authorship of the scientist belongs to the acoustic law, which received wide recognition after his death.

Georg Simon Ohm

Georg Simon Ohm was born on March 16, 1787 in the small Prussian town of Erpagen. His father Johann Wolfgang was a professional locksmith and at the same time always gravitated towards new knowledge. He independently studied mathematics, and also studied at the school of technical drawing. The mother of the future scientist, Maria Elizabeth, was the daughter of a blacksmith and bore her husband seven children. When Georg was a younger teenager, she died during childbirth, leaving Johann with two sons and a daughter. To provide them with a normal life, the father worked hard, and devoted all his free time to the children.

The first school where Georg studied was private and only one person taught in it - its owner, a former hosiery. Having no pedagogical education, he turned out to be a talented teacher and well prepared the ward for entering the gymnasium. The emphasis in teaching here was on languages, so Omu had to master the exact sciences with his father. Georg, together with his younger brother Martin (future professor of mathematics), showed remarkable abilities and soon university teachers began to study with them. One of them, K. Langsdorf, even agreed to examine Ohm after graduating from the gymnasium and delivered a verdict that he was very talented and would certainly become famous.

Start of your journey

In 1805, Om was enrolled without any problems at the University of Erlangen, where he studied without any problems. Here he became interested in dancing and billiards, demonstrating success in new activities for himself. The father did not really like the change of life orientations, which led to a noticeable deterioration in relations with his son. As a result, three semesters later, the young student left the Alma Mater and went to teach mathematics in the Swiss town of Gottstadt. Two years later, Om moved to German Neuerburg, continuing his teaching practice. On this path, he will gain solid experience, which will be summarized in a methodological article that was published in 1817.

In 1811, George returned to his native city and again sat down at the student bench. He did this so successfully that during the same year he defended his diploma, wrote a dissertation and received the degree of Doctor of Philosophy. After completing his studies, he was offered a job as a Privatdozent in the Department of Mathematics. At first, Om was enthusiastic about his work, but after 1.5 years he had to leave the university due to financial problems. In the period 1812-1816, Georg worked at the Bamberg school as a teacher of physics and mathematics, and after its closure, he received an offer to move to Cologne to teach preparatory classes.

Cologne period

The scientist will spend 9 years in this city. At the new place it was overcrowded positive emotions– a convenient class schedule, excellent equipment, good relations with colleagues created an excellent life background. Due to the free time that appeared, in parallel with teaching, Om seriously took up science. His area of ​​interest is the processes occurring in electrical circuits.

But first Georg took care of his instruments, many of which were in need of repair. With characteristic corrosiveness, he began to prepare the equipment for the planned experiments. Ohm became more and more interested in physics with its many mysteries, and the competition in this area was not so strong. The scientist sometimes determined the direction of movement towards the intended goal intuitively, but very accurately. He realized that first it is necessary to master the methods of quantitative research of phenomena.

The discovery of Ohm's law

Ohm improved the principle of current measurement, focusing not on thermal, but on magnetic action, previously discovered by his Danish colleague Oersted. In his device, the current passing through the conductor caused the magnetic needle to move, which hung on an elastic wire of gold. Its upper end was attached to a special screw, with which the scientist compensated for the turn of the arrow, provoked by magnetic influence. In this case, the angle of rotation of the screw acted as a measure of the current.

This is what industrial galvanometers produced since 1900 looked like - based on a device invented by Ohm

At first, the experimenter worked with galvanic current sources, but soon realized that they generate a current that decreases rapidly with time. Ignoring this circumstance caused certain inaccuracies in his first articles. Georg's inquisitive mind helped him overcome the difficulty, and he turned to the phenomenon first described by Thomas Seebeck. It is associated with the appearance of electricity in a circuit of two conductors, provided that the junctions between them have an unequal temperature.

For his experiment, the scientist took a copper and bismuth thermocouple, while the first junction was located in boiling water, and the second in melting snow. As a result, the device provided the necessary current stability, which allowed the author to draw objective conclusions about the effect of the length, cross section and chemical composition of conductors on electricity. Ohm later modified the setup to include 8 copper wires of varying lengths but identical diameters. The author repeatedly changed the conditions of the experiment in the future - different thermoelements were taken, including brass wires, the resistance was corrected, but the result of the observations was reduced to the already derived formula.

As a result, an empirical law was discovered, in which a relationship was established between the current strength in the conductor with the voltage at its ends and resistance.

The current strength in a section of the circuit is directly proportional to the electrical voltage at the ends of the section and inversely proportional to the electrical resistance of this section of the circuit

Georg managed to prove that in his equation the constant b (characterizes the properties of the electrical installation) does not depend on the length of the conductor and the exciting force. This gave reason to believe that this value reflects the properties of the unchanging part of the electrical circuit. The summation in the denominator of the derived formula is correct only for parameters with the same names, so the constant b characterizes the conductivity of an unchanged circuit segment.

Popularly about Ohm's law is described in the video.

The scientist also conducted research aimed at determining the values ​​of the conductivity of conductors. To do this, he used a method that has become classic in experimental physics. Georg alternately connected thin conductors of similar diameter made of different materials between two points of the circuit. Then he measured their length, seeking to obtain a certain amount of current. Ohm detailed his findings in an article published in the Journal of Physics and Chemistry in 1826.

By this time, Om had firmly settled in Berlin, where he worked in a scientific center with a very modest load of three hours a week. But it made it possible to actively engage in science. In 1829, another article of the scientist was published, in which he substantiated general principles functioning of electrical measuring instruments by offering a standard of electrical resistance. A year later, another work was published - “An Attempt to Create an Approximate Theory of Unipolar Conductivity”, about which he spoke enthusiastically. Despite all efforts, the physicist at first did not receive universal recognition in his homeland, and even a letter to the Bavarian king did not have much effect.

Ohm is the author of the concept of electromotive force. He formulated his law not only in differential terms, but also in finite terms, suitable for special cases of individual electrical circuits, among which the thermoelectric circuit was of paramount importance.

Moving to Nuremberg

In 1833, Ohm moved to Nuremberg, where he was invited to the post of professor of physics at the newly opened specialized school. Subsequently, he headed the department of mathematics and received the post of rector of the school. At this time, George's scientific priorities begin to change - he became interested in acoustics.

In 1843 he succeeded in formulating an acoustic law named after the author. It is based on the nature of the human auditory system, which is able to differentiate a complex sound wave into separate segments, that is, up to certain limits, we perceive individual frequencies that together create a complex sound. Ohm proved that elementary acoustic sensations cause harmonic vibrations into which the ear divides complex sounds. At first, this law, like the previous one, did not find wide recognition. Only 20 years later, the German Hemholtz conducted a series of more accurate experiments with resonators, which confirmed Ohm's conclusions.

International recognition

Over time, George has received worldwide recognition. His works are published in several European languages. There were no translations into Russian, but scientists of German origin who worked in Russia promoted the conclusions of the scientist in every possible way. As the apotheosis of Om's merits, he was awarded a gold medal and accepted into the ranks of the members of the Royal Society of London. Georg became only the second scientist from Germany to receive such an honor. Despite this, he still had many opponents who not only belittled his merits, but also openly interfered with his work.

The works of a compatriot were also appreciated at home. In 1845, the physicist became a member of the Bavarian Academy of Sciences, and in 1849 he was invited to Munich to take the place of an extraordinary professor. Soon he received the position of official curator of the collection of physical and mathematical instruments, and also worked as a referent for the telegraph department at the Ministry of State Trade. Throughout his life, the scientist had unusually warm feelings for his brother Martin, who remained his main critic and adviser. Ohm had no less close relationship with his father, to whom he was immensely grateful for the opportunity to touch science.

In 1852, George was finally appointed an ordinary professor, but his health by that time left much to be desired. In 1854, he had a heart attack, after which the Bavarian king released the scientist from lecturing, but 12 days later Om died.

• On the bas-relief of the monument in Munich, opened in 1895, Om appears next to his father, who is depicted in a working apron and reverently tells something to his son holding a book in his hands.

• In 1881, the unit of electrical resistance was named after a German scientist.
• Om's devotion to science was so great that in his entire life he never created his own family.
• Georg's brother Martin also became famous in science, becoming a famous mathematician.
• The American scientist J. Henry compared the law formulated by Ohm to lightning that lit up a dark room.
• Om generously shared his acquired knowledge with his students, among whom there were many well-known scientists, for example, mathematician P. Dirichlet and astronomer E. Geis.