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50 entertaining tasks
CETI in questions and tasks
XNUMXrd MESI Mathematical Olympiad
VI All-Union Mathematical Olympiad for schoolchildren
VI All-Union Physics Olympiad for schoolchildren
XIV International Mathematical Olympiad for schoolchildren
Automatic recording level control
Automatic winding control. Rybnikov S.I., 1972
Euclid's algorithm and the fundamental theorem of arithmetic
Aperiodic high-frequency amplifier in radiol Rigodna
Armenian folk tasks
Atom emits quanta
Nuclear energy in the service of peace
VHF blocks on lamps and transistors. Alekseev Yu.P., 1972
Blocking generators on a transistor. Glebov B.A., 1972
Boomerang
In planimetry - a theorem, and in stereometry - an unsolved problem. (Solution of problem M89)
Introduction to low temperature physics
Branches and borders
water on the moon
Capabilities of optical telescopes
Waves in a shallow dish (interference)
Waves on the water and overseas guests of N. Roerich
Rotation on reflection
Always solvable equation (problem)
High pressure - creation and measurement
High quality amateur transistor receivers. Khmartsev V.S., 1972
High quality stereo bass amplifier
Mountain heights and fundamental physical constants
Calculating volumes using the Cavalieri principle
Stimulating signal generators for automatic control systems., 1972
Genius of the 1707th century. (Leonhard Euler, 1783-XNUMX)
geometric problem
Emblem of the USSR. On the approval of the declaration and the treaty on the formation of the USSR (Decree of December 30, 1922)
Hydrostatics
State Prizes 1971
Cubic quadrilateral graph
Graphs of codes, encoding and decoding devices. Keller, F.E., 1972
Circular motion
Double-base diodes in automation. Olsevich A.E., Mikhailov V.V., Belichenko V.I., Fomenko G.P., 1972
Two-channel bass amplifier with reverb
Gauss debut
Day of Cosmonautics
decibels. Zeldin E.A., 1972
Diagnostics of multicycle telemechanical systems. Kon E.L., 1972
Diesel alternating current generators with voltage up to 400 V. Stern V.I., 1972
Dynamic programming
Differential electromagnetic clutches and gearboxes. Ustinov A.P., 1972
Capacitive converters in systems of automatic control and management. Buchholz V.P., Tisevich E.G., 1972
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Latest news of science and technology, new electronics:
Artificial leather for touch emulation
15.04.2024
In a modern technology world where distance is becoming increasingly commonplace, maintaining connection and a sense of closeness is important. Recent developments in artificial skin by German scientists from Saarland University represent a new era in virtual interactions. German researchers from Saarland University have developed ultra-thin films that can transmit the sensation of touch over a distance. This cutting-edge technology provides new opportunities for virtual communication, especially for those who find themselves far from their loved ones. The ultra-thin films developed by the researchers, just 50 micrometers thick, can be integrated into textiles and worn like a second skin. These films act as sensors that recognize tactile signals from mom or dad, and as actuators that transmit these movements to the baby. Parents' touch to the fabric activates sensors that react to pressure and deform the ultra-thin film. This ... >>
Petgugu Global cat litter
15.04.2024
Taking care of pets can often be a challenge, especially when it comes to keeping your home clean. A new interesting solution from the Petgugu Global startup has been presented, which will make life easier for cat owners and help them keep their home perfectly clean and tidy. Startup Petgugu Global has unveiled a unique cat toilet that can automatically flush feces, keeping your home clean and fresh. This innovative device is equipped with various smart sensors that monitor your pet's toilet activity and activate to automatically clean after use. The device connects to the sewer system and ensures efficient waste removal without the need for intervention from the owner. Additionally, the toilet has a large flushable storage capacity, making it ideal for multi-cat households. The Petgugu cat litter bowl is designed for use with water-soluble litters and offers a range of additional ... >>
The attractiveness of caring men
14.04.2024
The stereotype that women prefer "bad boys" has long been widespread. However, recent research conducted by British scientists from Monash University offers a new perspective on this issue. They looked at how women responded to men's emotional responsibility and willingness to help others. The study's findings could change our understanding of what makes men attractive to women. A study conducted by scientists from Monash University leads to new findings about men's attractiveness to women. In the experiment, women were shown photographs of men with brief stories about their behavior in various situations, including their reaction to an encounter with a homeless person. Some of the men ignored the homeless man, while others helped him, such as buying him food. A study found that men who showed empathy and kindness were more attractive to women compared to men who showed empathy and kindness. ... >>
Random news from the Archive Medical Application for Selfies
07.04.2017
Researchers have proposed using selfie to determine the early stage of some specific diseases, the signs of which are reflected on a person's face. Among them is di George's syndrome, which provokes deformation of the facial bones, which can be treated with drugs containing calcium.
A group of scientists from the National Human Genome Research Institute proposed using selfie for specific medical purposes. We are talking about the possibility of diagnosing some extremely rare diseases from a photograph of a patient. This is especially true for di George's syndrome, which manifests itself in the deformation of organs, in parallel provoking a high risk of fungal, viral and bacterial infections.
With the help of a special electronic device that detects the presence of a rare disease from a photograph of a face, specialists using selfies will be able to track the development of the disease, monitoring its progress and suppressing it with special medicines containing calcium.
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