Free technical library. Articles from Radio magazine, 2008

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Alphabetical list articles with annotations, from magazines published in 2008 in Radio magazine:

120 years of very fast fluctuations

50 or 75?

60 years of the creation of the transistor. The beginning of semiconductor applications

73DE UW3DI!

CeBIT 2008: INTEL microprocessors - the pace of technology

CES 2008: Digital Realities of Tomorrow

HTTM-2008

IFA-2007: new solutions in high definition

MVI - an island discovered by the editors

QSO from the Central Arctic

UN-UA - first QSO on 1296 MHz

USB programmer for AVR and AT89S microcontrollers compatible with AVR910

WP700Zi - a new series of LeCroy oscilloscopes

Call machine

staircase lighting machine

Automatic light effects Heart with autorhythm

Light Effect Machine Happy Heart

Computer-aided design of small-sized SMPS based on VIPer chips

Self-powered automatic frequency counter

Automatic activation of the subscriber loudspeaker

Automatic lead acid battery charger

Automatic lighting effects on PROM

car light

Car strobe

Autonomous source of emergency lighting with a timer

Autotransformer with automatic switching

Active adapter for dynamic microphone

Bicycle active reflector

Acoustic system VERNA 100A-14

Ignition unit - OZ angle regulator on the PIC16F676 microcontroller

Voltage stabilizer display unit

Power supply unit

Power supply and kilovoltmeter for Chizhevsky chandelier

Power supply based on a step-down transformer for halogen lamps

UMZCH power supply with synchronous rectifier and LC filter

Computer fan control unit

Vibrospider - 2

Voltmeter for laboratory power supplies

Voltmeter-INI with automatic selection of the measurement limit

Recovery

Recovery of old computers

Eight-band single-ended dipole

RF Schottky diode voltmeter

Motorcycle Stabilizer Rectifier YAMAHA XV 400

Exhibition Press-2008

[1] [2] [3] [4] [5] [6] [7] [8]

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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 ... >>

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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

Stonehenge creates sound mirages 29.02.2012

Stephen Waller, a researcher from the United States with a rare specialization in archeoacoustics, examined the acoustics of the famous Stonehenge, built in southern England more than five thousand years ago, and found out that from an acoustic point of view, this place is very difficult - the giant stones that make up Stonehenge are capable of creating amazing sound illusions, which can even be called acoustic mirages.

If two musicians are placed in the center of this structure and forced to play the trumpet, then the observer, bypassing them, will hear almost silence in certain places - the sound waves, reflected from the stones, will suppress each other in these places and the trumpet voices will almost subside.

Waller, on this basis, put forward a rather controversial hypothesis that, in fact, this was exactly what the first builders of this "place" intended. As confirmation, he cites the fact that stone circles in ancient Britain were called that way - "pipe stones", piper stones. He also talks about an ancient British legend, according to which Stonehenge arose from girls who were called by two magic pipes to dance in the field, and then turned them into stone pillars. Waller, thank God, does not claim that the myth is true, but hints that tricks with pipes were not dispensed with from the very beginning. He is sure that from the earliest days of Stonehenge, its visitors have been influenced by its acoustic mirages during their religious ceremonies and considered them to be a mystical sound creation of a stone circle.

The volunteers invited by him went out to the center of the "magic" circle blindfolded, listened to two trumpeters, and, having got into the "dead" sound zone, they later told that between them and the trumpeters they seemed to have an obstacle (which, of course, was not), a circular obstacle with pillars and arches, similar to a miniature Stonehenge.

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ section of the Electrician website. Article selection

▪ article Houses are new, but prejudices are old. Popular expression

▪ article What are artificial languages? Detailed answer

▪ Article by David. Legends, cultivation, methods of application

▪ article Digital voice recorder on a single chip. Encyclopedia of radio electronics and electrical engineering

▪ article IR remote control command receiver with USB interface. Encyclopedia of radio electronics and electrical engineering

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