Кафедра Загальної фізики та МФП, ФМФ, КПІ ім. Ігоря Сікорського

On this day in 1895, this image revolutionized the fields of physics and medicine.

It’s one of the earliest photographic plates from Wilhelm Roentgen’s discovery of the X-ray — showing his wife’s hand with her wedding ring clearly visible. Within months, doctors began using X-rays to see inside the human body.

Read more about the discovery: https://go.aps.org/3qkJCOq

7 листопада 2024 року студенти-фізики 2 курсу бакалаврату разом із викладачами відвідали Інститут фізичної хімії ім. Л.В.Писаржевського НАНУ .

Вчені-дослідники розповіли студентам про каталітичний синтез, пористі речовини та матеріали, фізичну хімію нанорозмірних магнітних часток тощо.

Такі екскурсії є дуже цікавими та корисними для майбутніх фізиків.

#наука #дослідження #інститут #студенти #навчання #науковці #фізмат #ФМФ #викладачkpi

Do you think particles have mass? According to modern physics, matter consists of a set of particles that act as building blocks. Between these particles lie forces that are mediated by another set of particles.

Independently of one another, in 1964 both Peter Higgs and the team of François Englert and Robert Brout proposed a theory about the existence of a particle that explains why other particles have a mass. In 2012, two experiments conducted at the CERN laboratory confirmed the existence of the Higgs particle.

Both Englert and Higgs were awarded the 2013 Nobel Prize in Physics. Brout passed away in 2011, before the prize was awarded.

Credit:

Методика розв'язування олімпіадних задач з фізики (Гельфгат Ілля Маркович) Онлайн-заняття проводить Гельфгат Ілля Маркович

27.10.2024 відбулося екскурсія-знайомство студентів з DataRoot Labs
Компанія DataRoot Labs створена випускниками ФМФ і займається високотехнологічними IT-проєктами з застосуванням штучного інтелекту. Одним з напрямів роботи підприємства є також освітнє середовище DataRoot University, створене для навчання всіх бажаючих інструментам штучного інтелекту, нейромереж та машинного навчання. На зустрічі зі студентами обговорювалися перспективи впровадження досвіду компанії в навчальний процес для студентів ФМФ, а також перспективи поглибленого навчання на базі підприємства і можливості залучення студентів до проєктів компанії.

🎉 Вітаємо переможців секції "Джуніор" XIII Міжнародного Фестивалю інноваційних проєктів "Sikorsky Challenge 2024: інновації для миру і безпеки України" секцій Технології виробництва, та Аерокосмічна техніка та оборонні технології на базі наукової лабораторії електроніки та кріогенної техніки ФМФ КПІ ім. Ігоря Сікорського!

Під керівництвом завідувача наукової лабораторії ФМФ КПІ ім. Ігоря Сікорського Козленко Олега Володимировича, вихованці секцій представили проєкти, за які отримали дипломи переможців:
• Маврін Андрій, студент ІПСА - проєкт механічний метод очищення акваторій від нафтопродуктів, який переміг у номінації "Краща ідея стартапу";
• Мельниченко Михайло і Коваль Богдан, ліцеїсти ПЛ НТУУ "КПІ" - проєкт Мобільне бомбосховища, який переміг у номінації "Краща бізнес-модель стартапу";
• Знаковський Олексій, ліцеїст ПЛ НТУУ "КПІ" - проєкт Конструкція індукційного генератора на вітряках", який переміг у номінації "Краще технологічне рішення стартапу";
• Ништа Іван, ліцеїст ПЛ НТУУ "КПІ" - проєкт Технологія створення шумових перешкод для захисту конфіденційної інформації при акустичному прослуховуванні, який пройшов у фінал Sikorsky Challenge.

❤️ Пишаємося вами та бажаємо нових звершень!

#наука #дослідження #учні #ФМФ #технології #проєкти #лабораторія #фізика

According to quantum physics, light and other electromagnetic radiation appear in the form of quanta, packets with fixed energies, which also correspond to energy transitions in atoms. Consequently, determining the frequency of light waves provides information about the atoms' properties, benchmarks for time and length, and the possibility of determining physical constants.

Around the year 2000, Theodor Hänsch (pictured) and John Hall developed the frequency comb technique, in which laser light with a series of equidistant frequencies is used to measure frequencies with great precision.

They were awarded the 2005 Nobel Prize in Physics for "their contributions to the development of laser-based precision spectroscopy, including the optical frequency comb technique."
Credit: Nobel Prize

What’s this? Have a guess.

a) A close-up of a piece of fabric

b) An interesting shadow

c) A gold surface



The answer is a gold surface, in which you can see each individual gold atom. It’s possible to see them at the atomic level thanks to scanning tunnelling microscopy.

Nobel Prize laureates Gerd Binnig and Heinrich Rohrer developed the technique in which a remarkably fine stylus scans a surface and its vertical movement is used to create a topographical map of the surface at the atomic level.

Learn more about how it works and scanning tunnelling microscopy’s impact, from visualising DNA molecules to viruses. https://bit.ly/4cabKrX

Felix Bloch was born in Zurich, Switzerland, on October 23, 1905, as the son of Gustav Bloch and Agnes Bloch (née Mayer). From 1912 to 1918 he attended the public primary school and subsequently the “Gymnasium” of the Canton of Zurich, which he left in the fall of 1924 after having passed the “Matura”, i.e. the final examination which entitled him to attend an institution of higher learning.

Planning originally to become an engineer, he entered directly the Federal Institute of Technology (Eidgenössische Technische Hochschule) in Zurich. After one year’s study of engineering he decided instead to study physics, and changed therefore over to the Division of Mathematics and Physics at the same institution. During the following two years he attended, among others, courses given by Debye, Scherrer, Weyl, as well as Schrödinger, who taught at the same time at the University of Zurich and through whom he became acquainted, toward the end of this period, with the new wave mechanics. Bloch’s interests had by that time turned toward theoretical physics. After Schrödinger left Zurich in the fall of 1927 he continued his studies with Heisenberg at the University of Leipzig, where he received his degree of Doctor of Philosophy in the summer of 1928 with a dissertation dealing with the quantum mechanics of electrons in crystals and developing the theory of metallic conduction. Various assistantships and fellowships, held in the following years, gave him the opportunity to work with Pauli, Kramers, Heisenberg, Bohr, and Fermi, and to further theoretical studies of the solid state as well as of the stopping power of charged particles.
Upon Hitler’s ascent to power, Bloch left Germany in the spring of 1933, and a year later he accepted a position which was offered to him at Stanford University. The new environment in which he found himself in the United States helped toward the maturing of the wish he had had for some time to undertake also experimental research. Working with a very simple neutron source, it occurred to him that a direct proof for the magnetic moment of the free neutrons could be obtained through the observation of scattering in iron. In 1936, he published a paper in which the details of the phenomenon were worked out and in which it was pointed out that it would lead to the production and observation of polarized neutron beams. The further development of these ideas led him in 1939 to an experiment, carried out in collaboration with L.W. Alvarez at the Berkeley cyclotron, in which the magnetic moment of the neutron was determined with an accuracy of about one percent.

During the war years Dr. Bloch was also engaged in the early stages of the work on atomic energy at Stanford University and Los Alamos and later in counter-measures against radar at Harvard University. Through this latter work he became acquainted with the modern developments of electronics which, toward the end of the war, suggested to him, in conjunction with his earlier work on the magnetic moment of the neutron, a new approach toward the investigation of nuclear moments.

These investigations were begun immediately after his return to Stanford in the fall of 1945 and resulted shortly afterward in collaboration with W.W. Hansen and M.E. Packard in the new method of nuclear induction, a purely electromagnetic procedure for the study of nuclear moments in solids, liquids, or gases. A few weeks after the first successful experiments he received the news of the same discovery having been made independently and simultaneously by E.M. Purcell and his collaborators at Harvard.

Most of Bloch’s work in the subsequent years has been devoted to investigations with the use of this new method. In particular, he was able, by combining it with the essential elements of his earlier work on the magnetic moment of the neutron, to remeasure this important quantity with great accuracy in collaboration with D. Nicodemus and H.H. Staub (1948). His more recent theoretical work has dealt primarily with problems which have arisen in conjunction with experiments carried out in his laboratory.

In 1954, Bloch took a leave of absence to serve for one year as the first Director General of CERN in Geneva. After his return to Stanford University he continued his investigations on nuclear magnetism, particularly in regard to the theory of relaxation. In view of new developments, a major part of his recent work deals with the theory of superconductivity and of other phenomena at low temperatures.

In 1961, he received an endowed Chair by his appointment as Max Stein Professor of Physics at Stanford University.

Prof. Bloch married in 1940 Dr. Lore Misch, a refugee from Germany and herself a physicist.
Felix Bloch died on September 10, 1983.
Credit:

This is an actual image of a molecule.

Using an atomic force microscope, IBM researchers captured this photo. The image illustrates the structure of the individual nanographene molecule and also how atoms are bound together.

Read More: http://ibm.co/1MUAKDg
Papers: http://bit.ly/1Nh7Os2 - http://bit.ly/1FSWfnW