Free books, magazines, collections published in 1997

Free technical library

FREE TECH LIBRARY
Content of books and magazines / Year 1997

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$1112 for a miracle

12 programs instead of six

3-4-5 - will be perpendicular

500 kilometers per hour in the laboratory

8 programs on ZUSCT TVs

DIN 41612 double row

HOT-BIRD 2 in action

II International Conference of Young Scientists dedicated to the memory of S.N. Bernstein

IV Russian Olympiad for schoolchildren in astronomy and space physics

LX Moscow Mathematical Olympiad

Montolit cuts stone

N-channel MOSFETs KP505A…G

Microchip PIC microcontrollers

Roger Beep

SSB limiter

VI International Olympiad Intellectual marathon

VII Sakharov Readings

XNUMXth century through the eyes of Jules Verne

XXIII All-Russian Mathematical Olympiad for schoolchildren

XXVII International Physics Olympiad

XXXI All-Russian Olympiad for Schoolchildren in Physics

Isn't that interference?

And what's inside?

Scarf lampshade

Avometer

Australian word about Maclay

Australia - the cradle of art

Automatic protection kinescope

staircase lighting machine

Soft starter for collector electric motors

Light effects machine

Automatic lighting effects on PROM

Automatic fish feeder

Automatic color switch

Automatic anti-dazzle lamp

Tape recorder auto-off

Auto-switch of audio and video inputs

The car changes color

car radio watchman

Answering machine telling the time

Autukh - happy

Adaptive capacitive sensor

Hell Lab

Videography ABC

AK9601 - programmable frequency synthesizer

AM-FM receiver with low voltage supply

Caller ID on a computer

Caller ID prefix Expert

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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

Network video intercom Axis A8004-VE 19.04.2015

Axis Communications announced the release of the Axis A8004-VE network video intercom. It includes an intercom that provides two-way voice communication without echo, as well as a built-in HDTV camera with WDR function. The network video intercom provides identification of incoming and outgoing people in daylight and at night, even under adverse operating conditions.

The Axis A8004-VE is available in a weatherproof and vandal resistant housing and is suitable for both indoor and outdoor installations. Thanks to Power over Ethernet technology, a single network cable is enough to connect the station, while the power supply is enough to support the operation of most standard door locks and control them directly from the video station.

When used as part of small and medium-sized systems, such as in retail stores or offices, the Axis A8004-VE network video intercom will not only improve the security of office premises and surrounding areas, but also increase the efficiency of daily work. The network video intercom provides contact and identification of visitors and supports remote access control from a fixed IP phone, mobile device or directly through a video management system (VMS).

The Axis A8004-VE network video intercom is designed based on open standards and application programming interfaces (APIs) and is also suitable for large-scale installations, such as airports, where integration of various systems is required, such as video surveillance, physical access control and IP telephony. Full compatibility with standards and the ONVIF standard, the VAPIX interface and the SIP protocol makes it extremely easy to integrate the device with other systems. This enables Axis' application development partners to provide customers with solutions tailored to their specific needs.

The new device is compatible with Axis Camera Station 4.20, which is scheduled for release in May. In addition, full support for the Axis A8004-VE network video intercom will be available from day one in the video management software of Axis' application development partners Genetec, Aimetis and SeeTec.

The network video intercom will be presented for the first time at MIPS 2015 at the Axis Communications booth. The device will go on sale through the Axis distribution network in May.

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ site section And then an inventor (TRIZ) appeared. Article selection

▪ Eve article. Popular expression

▪ article What did Captain Cook give his men to fight scurvy? Detailed answer

▪ article Processor of information material. Job description

▪ article Voice relay. Encyclopedia of radio electronics and electrical engineering

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