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Alphabetical list articles with annotations, from magazines published in 2014 in Radio magazine:
Scooter audio system
USB voltage recorder with oscilloscope, spectrum analyzer and frequency response functions
Refinement of the power supply AV3302
18W Low Voltage Soldering Iron Power Supply
MP3 and Opus audio player
Block of automatic control of room ventilation
Running lights on high power MOSFETs
Variants of the zigzag antenna Kharchenko
Magic castle controlled by radio
Restoring the functionality of the Veritas sewing machine pedal
Automatic lighting effects based on a three-phase multivibrator
Refinement of the battery flashlight
Active TV signal divider - from passive
Finalization of the waffle iron
Polite light
Capacitive liquid level meter
Vibrator with automatic illumination
Automatic signal switch
Analog-to-digital dynamic color setup
Alternator for locator
USB voltage recorder with oscilloscope, spectrum analyzer and frequency response functions
Refinement of dynamic heads and measurement of their frequency characteristics
Two E-CW keys on the PIC12F675 microcontroller
Bicycle computer
Remote control garland
Stepper motor control unit
Running lights control unit
Power supply for low-voltage soldering irons
Built-in current and voltage meter on PIC12F675
Cistern automation
Refinement of the automotive voltage regulator 59.3702-01
Morse code generator for beacon
Alternator for locator
Additional brake light control unit
Display and control unit for laboratory power supply and charger based on a computer PSU
Sound effects generator on a TD62381P chip
QRP transceiver MA12
Butterfly
Carbon monoxide analyzer
Bipolar voltage converter
Two-channel stereophony - an approximation to the ideal. About stereo playback through speakers
LC-meter - attachment to the multimeter
Binary clock
Creep line with text input using a computer keyboard
Drawn Signal Generator
Generator of two reference frequencies for synthesizers of broadcast transmitters
Antenna VHF amplifier
Ammeter voltmeter for laboratory power supply
Sweep generator with LCD indicator
Automatic Indoor Plant Light
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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 Atomic clocks will become even more accurate
13.03.2018
A group of experts set up by the Bureau International des Poids et Mesures (BIPM) described the necessary measures to improve the accuracy of atomic clocks. They propose to define the basic unit of time - the metric second - in terms of radiation in the optical range.
The most accurate atomic clock to date has an error of one second in 200 million years. And, nevertheless, this accuracy is not enough for a number of tasks, among which, for example, setting up the navigation of spacecraft. The scientists propose replacing the current clock, which is tuned to a specific frequency of microwaves, with clocks that use high-frequency visible light.
The running atomic clock depends on microwave beams vibrating at the precise frequency needed to excite the cesium-133 atoms to a higher energy level. The frequency of visible light is about 100 times higher than that of microwaves, promising even greater accuracy.
In their article, the experts outlined five steps that must be completed before this transition can take place. The most difficult of them is associated with the creation of lasers capable of stably cooling atoms to the desired temperature.
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