HOME

TheInfoList



OR:

Alexandra Andreevna Glagoleva-Arkadieva (russian: Александра Андреевна Глаголева-Аркадьева; 28 February 1884 – 30 October 1945) was a Russian and Soviet physicist known for her research on
medical imaging Medical imaging is the technique and process of imaging the interior of a body for clinical analysis and medical intervention, as well as visual representation of the function of some organs or tissues (physiology). Medical imaging seeks to rev ...
using
X-ray An X-ray, or, much less commonly, X-radiation, is a penetrating form of high-energy electromagnetic radiation. Most X-rays have a wavelength ranging from 10  picometers to 10  nanometers, corresponding to frequencies in the range 30&nb ...
s, mechanisms for generating
microwave Microwave is a form of electromagnetic radiation with wavelengths ranging from about one meter to one millimeter corresponding to frequencies between 300 MHz and 300 GHz respectively. Different sources define different frequency ran ...
s, and spectrometry in the
far infrared Far infrared (FIR) is a region in the infrared spectrum of electromagnetic radiation. Far infrared is often defined as any radiation with a wavelength of 15 micrometers (μm) to 1 mm (corresponding to a range of about 20  THz to ...
regions of the
electromagnetic spectrum The electromagnetic spectrum is the range of frequencies (the spectrum) of electromagnetic radiation and their respective wavelengths and photon energies. The electromagnetic spectrum covers electromagnetic waves with frequencies ranging from ...
. She was the first Russian woman to become internationally known for her physics research.


Life and career

Glagoleva was born in 1884 in what was then the
Russian Empire The Russian Empire was an empire and the final period of the Russian monarchy from 1721 to 1917, ruling across large parts of Eurasia. It succeeded the Tsardom of Russia following the Treaty of Nystad, which ended the Great Northern War. ...
, and educated in a secondary school in
Tula Tula may refer to: Geography Antarctica *Tula Mountains *Tula Point India *Tulā, a solar month in the traditional Indian calendar Iran * Tula, Iran, a village in Hormozgan Province Italy * Tula, Sardinia, municipality (''comune'') in the pr ...
, an industrial city south of Moscow. She worked as a schoolteacher in the country from 1900 to 1906, then studied physics and mathematics with Alexander Alexandrowitsch Eichenwald and
Nikolay Umov Nikolay Alekseevich Umov (russian: Никола́й Алексе́евич У́мов; January 23, 1846 – January 15, 1915) was a Russian physicist and mathematician known for discovering the concept of Umov-Poynting vector and Umov effect. Bi ...
in the
Moscow Higher Courses for Women The Higher Courses for Women in Moscow () was a university for women between 1872 and 1918 (with a break in 1888-1900), after which they were transformed into the 2nd Moscow State University. It was one of the largest and most prominent women's hi ...
. After finishing her studies there in 1910, she became an assistant for the Higher Courses. In 1911, women in Russia were granted the right to take the state examinations for becoming university professors; Glagoleva passed hers in 1914, and became an assistant in physics at
Moscow State University M. V. Lomonosov Moscow State University (MSU; russian: Московский государственный университет имени М. В. Ломоносова) is a public research university in Moscow, Russia and the most prestigious ...
in 1917, where her husband Vladimir Arkadiev also worked; in 1919 she joined his newly-founded laboratory on electromagnetism, and later led the laboratory. She also continued to work at the
Second Moscow State University Moscow State Pedagogical University or Moscow State University of Education is an educational and scientific institution in Moscow, Russia, with eighteen faculties and seven branches operational in other Russian cities. The institution had underg ...
when it was established as a continuation of the Higher Courses in 1918, during the
Russian Revolution The Russian Revolution was a period of Political revolution (Trotskyism), political and social revolution that took place in the former Russian Empire which began during the First World War. This period saw Russia abolish its monarchy and ad ...
. At Moscow State University, she became the founding head of a department of applied physics for the natural sciences in 1932. She became a full member of the Research Institute of Physics of Moscow State University in 1933, and was awarded a doctorate (on the basis of past work, with no thesis) in 1935. She also headed of department at the Medical Institute of the Second University. She retired from this position for medical reasons in 1937, and from her teaching and administrative responsibilities at Moscow State University in 1939. She died on 30 October 1945.


Research

During
World War I World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, the United States, and the Ottoman Empire, with fightin ...
, Glagoleva-Arkadieva applied her expertise in physics to the organization, design, and construction of an
X-ray An X-ray, or, much less commonly, X-radiation, is a penetrating form of high-energy electromagnetic radiation. Most X-rays have a wavelength ranging from 10  picometers to 10  nanometers, corresponding to frequencies in the range 30&nb ...
facility at the University's hospital, and its application in finding metal fragments and bullets in wounded soldiers from the war; she later repurposed the facility to assist in
childbirth Childbirth, also known as labour and delivery, is the ending of pregnancy where one or more babies exits the internal environment of the mother via vaginal delivery or caesarean section. In 2019, there were about 140.11 million births globall ...
, and in those years regularly lectured on the medical applications of X-rays. In the early 1920s she began her work on the generation of
microwave Microwave is a form of electromagnetic radiation with wavelengths ranging from about one meter to one millimeter corresponding to frequencies between 300 MHz and 300 GHz respectively. Different sources define different frequency ran ...
s by passing sparks through metal filings, embedded in oil. This led her in the mid-1920s to place the entire
electromagnetic spectrum The electromagnetic spectrum is the range of frequencies (the spectrum) of electromagnetic radiation and their respective wavelengths and photon energies. The electromagnetic spectrum covers electromagnetic waves with frequencies ranging from ...
into a single continuum, and by the late 1920s she was studying the
spectral power density The power spectrum S_(f) of a time series x(t) describes the distribution of power into frequency components composing that signal. According to Fourier analysis, any physical signal can be decomposed into a number of discrete frequencies, ...
of the resulting radiation. This research developed in the 1930s into her studies of the
far infrared Far infrared (FIR) is a region in the infrared spectrum of electromagnetic radiation. Far infrared is often defined as any radiation with a wavelength of 15 micrometers (μm) to 1 mm (corresponding to a range of about 20  THz to ...
spectrum, using
diffraction grating In optics, a diffraction grating is an optical component with a periodic structure that diffracts light into several beams travelling in different directions (i.e., different diffraction angles). The emerging coloration is a form of structura ...
s to isolate emissions of different frequencies. Her final research topic, in the late 1930s and early 1940s, considered the detailed emission mechanism and modes of vibration of the microwave emitter that she had invented in her earlier work.


References

{{DEFAULTSORT:Glagoleva-Arkadieva, Alexandra 1884 births 1945 deaths Russian women physicists Soviet physicists Soviet women physicists 20th-century Russian physicists