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Search for life.

The five most important people in the search for extraterrestrial life.

Every month we hear of incredible new exoplanets in planetary systems seemingly like our own, and we learn more in the search for past or present microbial life as missions like Curiosity gain worldwide attention, but for some reason the notion that we might be just one intelligent race among many is yet to receive much support from the public at large.

Many people today still seem to have the same opinion that was prevalent in the mid to late 20th Century, that aliens are something that belong only

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NDB, the Instrument Approach That Wont Die

The newest jets still leave the factory with ADF receivers

MY CESSNA 140 HAD a big loop antenna mounted over the cockpit. You rotated the loop by hand using a knob on the cabin ceiling to find the “null” in the signal from a non-directional beacon (NDB). Loop antennas can be designed to have a very pronounced null, or dead spot, when aligned in the direction of the transmitted signal.

A compass rose on the cabin overhead showed the orientation of the antenna relative to the nose of the airplane, and you noted the bearing as you heard the quiet

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Make Your Own Audio Cassette Copier

Any audio electronics hobbyist will be interested in a quality cassette copier to enrich his music collection. Here is a quality recording circuitry which has been tested and used for over six months and found working efficiently.

The whole circuit is in fact an integration of some well-known circuits. A cassette copier has four main sections. First, a head preamplifier to pick-up the signals from the playback head and, second, a high frequency booster to boost the amplitude of high frequency signals during recording. The high frequency response is deliberately boosted in order to give a high signal-to-noise ratio on

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FIELD SET FOR TEST EQUIPMENT

Field complex registration and processing (ICDP) measurement information for automation of the verification process (diagnosis) of military equipment in the field. ICDP consists of a remote-controlled registration system of measurement information and automated processing systems of the test results.

The registration system of measurement information includes a set of different types of sensors, connecting cable and measuring and recording unit. The module includes automation equipment field, a driver circuit of the sensor signals, matching amplifiers, instrumentation magnetic recording and power supplies. The module is operational under dynamic stress, allowing you to install it near the checked samples.

Measuring and

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Fuzz Effect Box For Guitarists

The ‘Fuzz’ sound is derived by clipping the input waveform, there by enriching the signal with odd harmonics which provide The harsh sound. This circuit produces a fuzz which gradually decays into a ‘clean signal’.

The circuit uses the standard op-amp 741 in non-inverting configuration. The gain of this amplifier is com rolled by the feedback network comprising VR1, R2 and R3.

Input signal from the guitar passes to the op-amp through DC blocking capacitor C1. Resistor Rl sets the input impedance at 100k, which suits most guitars, Resulting signals from the op-jimp are reduced in amplitude by the potential

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The remote control UDC-Pyramid for automated class A + is available for order

Available to Order remote control "UDC-Pyramid", required for use in the automated class A +, particularly at sites of renewable energy (biogas, solar, wind, tidal and other power plants), according to the latest edition of the technical requirements of "ATS".

The remote control "UDC-Pyramid" is intended to control automated Members OREM to check the measurements provided (information about the state of measurement) Members OREM in PAK DA. Detailed requirements for the UDC defined in Appendix 11.1 "Automated information system for measurement of electrical energy (power). Technical requirements "to the" Regulations on the procedure for obtaining the status of a wholesale

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Geologists are scratching their heads over the reasons mysterious hum

February 23, 2008. Researchers have found another permanent low-frequency signal propagating in the Earth. Its nature is unknown.

For nearly ten years, is known for a very weak constant vertical oscillations of the earth's surface, caused probably continuous impact of seismic waves on the ocean floor. Now, a team of scientists from Germany found a second note of this buzz, this time the horizontal, but to explain its origin, they could not.

For 11 years, Dieter Kurrle and Rudolf Widmer-Shnidrih, the staff of the University of Stuttgart, studied data from seismometers four isolated points in Germany, Japan and China. Was

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Since May of this year begins mass production of receivers Geos-3

Since May of this year begins mass production of a new type of equipment users GLONASS — receiver "Geos-3". This was announced today at the VI International Satellite Navigation Forum zamgeneralnogo director, designer, "Russian Space Systems" / RCS / Grigory Stupak.

According to him, the philosophy of the development of the GLONASS system is defined feedback and needs of consumers. To improve the performance of the navigation system, the enterprise on its own initiative, a new receiver — "Geos-3". "It is competitive with current domestic and international advanced models," — said Stupak. At present, the issue is

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Verified new warning system for tsunamis in Kamchatka

Kamchatka today participated in international exercises Tsunami Warning System (TWS) in the Pacific Ocean (Pacific wave 2011). According to RIA Novosti, new alert system, installed on the Kamchatka Peninsula, delivered a training signal of the tsunami threat from the United States for 2 minutes.

According to legend, exercise, tsunamigenic earthquake of magnitude 9 occurred in the south-east coast of Kamchatka. The aim of the exercise was to provide timely and effective tsunami early warning, education of the population living at risk, as well as better coordination among all levels of TWS.

Bringing high speed signal

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Completed the joint development of chips Elbrus 2C + ZAO MCST and SUE SPC Elvis

 Photo source:mcst.ru

A new stage in the development of Russian microprocessors — signed certificate of acceptance developmental work "Development Kit VLSI type" system on a chip "for use in radar data processing." Completed the joint development of chips "Elbrus 2C +" ZAO "MCST" and SUE SPC "Elvis."

Excerpts from the Act, which was signed by the Commission for the state tests:

"The developed chip is integrated in 1891 VM7YA import VLSI providing high-speed digitized input signal from the antenna systems, their preliminary, primary and secondary digital processing of hard real-time.

The structure consists of four chips

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