ISPhO 2024. News

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Up-to-date information related to the International Scientific Physics Olympiad of Moscow Institute of Physics and Technology. https://ispho.mipt.ru/

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🏵Optical spectroscopy is a very powerful non-invasive method and especially absorption spectroscopy was a main topic of the experimental problem at ISPhO. It's common at APhO and IPhO that it’s particularly impossible to answer all questions due to lack of time. Very similar situation took place at ISPhO, so the setup is provided to the participants of the Training Camp to complete the study started at the olympiad and to clarify their optical skills.

2	+4 💫 The next experiment, "Trifilar suspension" from Russian physics team summer selection camp, is about mechanical oscillations and dynamics of rotating solid bodies. First, students had to assemble a torsional pendulum and examine how its period of oscillation varies with different parameters of the setup. Then they used the torsional pendulum to study oscillations of more complex systems. For example, one part of the problem is devoted to determining the insides of a metallic "black box" without cracking it open, just by measuring how it affects oscillation period. This part required taking measurements with high precision to not to confuse the desired effect with a statistical error, and also involved a lot of non-trivial algebra. In other parts of the problem students examine damping oscillations due to magnetic and viscous friction. All parts required accurate mechanical alignment to get rid of possible side effects. As proper alignment can be really hard and time-consuming task, we believe this experiment turns out to be helpful to all camp participants.	355
3	+6 🩶 Foucault currents are currents that arise in a conductor due to a change in the magnetic field. It turns out that if Foucault currents are caused by the movement of some magnetised bodies, the currents induce braking forces acting on the latter. This effect finds application in modern engineering. For example, it is used for damping oscillations of moving parts of various constructions. Participants were able to experience this effect first-hand: they had to study the motion of a small magnet in a metal tube. The magnet was slowed down by Foucault currents induced in the tube. An unusual stopwatch, namely an oscilloscope, was used to measure time during the experiment. Thus, the participants had an opportunity to work with this device once again and to repeat the basic principles of operating with it. In addition, the students were introduced to the Hall sensor, a device for measuring magnetic fields. It was used to determine the magnetic moment of the magnet used in the experiment, which many of the participants successfully did.	369
4	+7 📦 The problem "Nonlinear Black Box" from IPhO 2012 (Estonia) with the original setup was provided to the participants. The topic of the problem is the time characteristics of circuits with capacitance and inductance in the presence of nonlinear devices. The problem is quite difficult, so only 10% of the IPhO12 participants scored more than half the points. The official website also mentions that the problem was "aimed for finding the winner of the best experimentalist's prize".	353
5	+6 🧲 A nice universal problem was given to the students: the study of displacement of a magnet in a non-uniform magnetic field. Before the start of the experiment the colleagues got a brief review of the dipoles, calculation of magnetic fields and the mechanical ideas behind the experiment. A number of experimental hints were given to the students, so they can obtain a valid data and get more precise answers. The students were really curious and were amazed how one can calculate the magnetic field strength inside the coil using only mechanical approach, i.e. measuring the forces and distances. Data treatment being emphasized as well: numerical calculations of area under the graph and error analysis were discussed after the experiment. It is worth noting that although in the afternoon and evening no classes are scheduled, the students just came to redo or enhance the results of their own work on this experiment! Good job!	321
6	+6 🤕 In the "Introduction to oscilloscope" experiment, students learnt how to work with an oscilloscope -- a device for studying various complex electrical signals. The students were offered an unusual task: they had to study the dependence of the oscillation period of the free end of a ruler on its length. The only measuring equipment provided was an oscilloscope, so they had to figure out how to transform mechanical oscillations into voltage oscillations. However, the vast majority of the participants mastered the basic principles of oscilloscope operation and successfully coped with the proposed task.	339
7	+8 🏃‍♂️ The training camp classes started on Friday! We'll be writing a series of posts to show how our students are doing on their experimental exam training. 👓 Let's start with learning the basic experimental skills in optics and determined parameters of different optical elements such as convex and concave lenses and mirrors. The students acquired understanding of assembling optical setups, properly aligning them, and obtaining uniform parallel light beams and sharply focused images. Another objective of the task was to experimentally check whether theoretical laws of geometrical optics do apply for non-ideal real-life elements. The task also serves as initial training before using experimental skills in optics later during the camp.Although the theoretical part on the topic of optics is considered to be easy, the optics experiment always proves to be very challenging for the participants. It is also important to note that experiments involving optical equipment are included quite often in international physics competitions.	347
8	💡 The teams are not in a hurry to leave Russia - they're staying here to take part in the IPhO Training camp: The countries are: 🇦🇲Armenia 🇮🇳India 🇰🇿Kazakhstan 🇰🇬Kyrgyzstan 🇵🇪Peru 🇹🇯Tajikistan 🇹🇲Turkmenistan 🇺🇿Uzbekistan 📝 The camp is offered to the national physics teams to share the unique Russian experience in preparation for the International Olympiads in Physics (and IPhO in particular). Russian teams are constantly awarded with gold medals at IPhO, so we expect that our training system will be interesting for teams from other countries as well.	453
9	🥲 The last Newsletter is published. See you next year!	431
10	🤔 Also, we owe you the Experimental Examination Solutions, so here they are	834
11	+4 No text...	535
12	🥇 And at last the best team results: 🇦🇲 Armenia - 3rd place 🇰🇿 Kazakhstan - 2nd place 🇧🇾 Belarus - 1st place 🇷🇺 Russia - Grand Prix	515
13	+7 📸	535
14	💯 Absolute winners of the Olympiad this year are: 🇷🇺 - Bakhvalov Andrey, in "Theory and Modelling" 🇷🇺 - Bystrov Maksim, in "Experimental Examination" and also Total Absolute winner	439
15	💎 We also have a number of special nominations in the ISPhO! Let's start with the "National Diamond", which is awarded to the participants who showed the best result from their country: Agrba Arseniy Aslanovich from Abkhazia Arsen Aghayan from Armenia Alina Polonskaya from Belarus Zakkaha Fauzan Premos from Indonesia Arsh Bhatnagar from India Bissimbi Doszhan from Kazakhstan Abdiev Askar from Kyrgyzstan Luis Fabian Sanchez Romero from Peru ADITYA VIVEK from Qatar Salimov Husanjon from Tajikistan Jumadurdy Nuryyev from Turkmenistan Ildar Khashaev from Uzbekistan Carlos Daniel Chaviano González from Cuba AFRIYIE GRACIOUS ANNOR from Ghana Jovan Jankovic from Montenegro Muhammad Ismail Naqi from Pakistan Bahaa Aldeen Melhem from Syria Mohamed Ahmed from Egypt	743
16	🥇 Gold medals: Alina Polonskaya - 🇧🇾 Bissimbi Doszhan - 🇰🇿 Nursagatov Margulan - 🇰🇿 Bakhvalov Andrey - 🇷🇺 Bystrov Maksim - 🇷🇺 Pulyayevskiy Andrey - 🇷🇺 Chernous Maksim - 🇷🇺	514
17	🥈 Silver medals: Arsen Aghayan - 🇦🇲 Artyom Gasparyan - 🇦🇲 Artem Levko - 🇧🇾 Ivanov Ilya Alekseevich - 🇧🇾 Mihail Khyrsin - 🇧🇾 Yersh Andrei - 🇧🇾 Kim Artur - 🇰🇿 Pshenbayev Amir - 🇰🇿 Abdiev Askar - 🇰🇬 Luis Fabian Sanchez Romero - 🇵🇪	522
18	🥉 Bronze medals: Armen Gazazyan - 🇦🇲 Narek Galstyan - 🇦🇲 Narek Movsisyan - 🇦🇲 Arsen Asatryan - 🇦🇲 Gor Hasratyan - 🇦🇲 Smbat Poghosyan - 🇦🇲 Kazymbek Iliyas - 🇰🇿 Anaraly uulu Emir - 🇰🇬 Baratali Bektur - 🇰🇬 Turdukeev Atai - 🇰🇬 Rivera Lopez David Summer- 🇵🇪 Ghulomzoda Huseini - 🇹🇯 Salimov Husanjon - 🇹🇯 Jumadurdy Nuryyev - 🇹🇲 Mekangeldi Janmyradov - 🇹🇲 Ildar Khashaev - 🇺🇿	663
19	🚶‍♀️ Now we proceed with the Top list: ⭐️ Honorable mentions: Vahe Melkonyan - 🇦🇲 Emilbekov Aitegin - 🇰🇬 ADITYA VIVEK - 🇶🇦 Omar Mohammed A I AI-Emadi - 🇶🇦 Ashraf Anvari - 🇹🇯 Haidari Muhammadrobe - 🇹🇯 Abdulloh Mamaniyozov - 🇺🇿 Rajabov Dilshodbek - 🇺🇿 Ravshanov Ozodbek - 🇺🇿 Sadullaev Javohir - 🇺🇿	636
20	1️⃣ 1st place in "Theory and Modelling": Alina Polonskaya - 🇧🇾 Ivanov Ilya Alekseevich - 🇧🇾 Bissimbi Doszhan - 🇰🇿 Nursagatov Margulan - 🇰🇿 Pshenbayev Amir - 🇰🇿 Bakhvalov Andrey - 🇷🇺 Bystrov Maksim - 🇷🇺 Pulyayevskiy Andrey - 🇷🇺 Chernous Maksim - 🇷🇺 Abdul Hadi Chmachan - 🇸🇾 Bahaa Aldeen Melhem - 🇸🇾	481

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