Among the many toys in the electronics, is able to mimic the sounds of animals, is very amusing. For example, a toy cow, imitating mooing, or a pig, saying, “let’s Go home, I’m hungry!” The first mentioned industrial products, presentable shaped like miniature soft toys (manufacture of our neighbors from China), electronic device emits a sound “mu-u-u” that can be used for a variety of fun devices, adapting a toy, for example, charm signal in the car.
When there are dynamic microphone, you can substitute any small-sized dynamic head. Here’s what proposes to make to the Yugoslav magazine “Radio Amater”. Since the voltage developed by the head, a little, pre-amplify with low-yield of germanium, for example, МП39— МП42, or silicon (KT361, КТ203, КТ104) of the transistor included in the scheme with a Read more…
Ventilate the room is necessary even in the cold of winter. But it is necessary to open the window, such as window fog up and then freeze, covered with snow patterns, blocking the light. To prevent this from happening, you need between frames but the perimeter of the window to pull the strip of plastic Read more…
During the Second world war in Germany, there have been many models of aircraft, some of them had a very original design. “Nutter” is definitely one of them, and although he never gained military glory, but in the air up and therefore deserves attention as an unusual and interesting Chapter in the history of aviation.
In late September 1998 in Irkutsk, an event occurred that had no publicity, but, nevertheless, its significance is far beyond the scope of this Siberian city. From the airfield of the Irkutsk aviation production Association in the skies the plane-amphibian be-200. Machine created by the Taganrog aviation scientific-technical complex (TANTK). G. M. Beriev and built at the Irkutsk aviation production Association (IAPA), has opened a new page in the development of hydroaviation.
At that time, as a little clunky, but gained confidence with their performance of the submarine Holland quickly began to spread from America around the world, Europe remained a private leader in the underwater case. They certainly remained in France, where in the late nineteenth century for the explicitly revolutionary “electric” “Imnot” followed created on the same principles of “Gustave Zede” and its smaller version “Le Morse” gave rise, in turn, the first serial products: “Farfa-de”, “Corrigan”, “Gnome” and “Lutana”.
I have to say, I don’t homebrew and the car was collected only in order to check how the mechanism of rotation, which I patented. So the car made a simple that have no practical value, except to ride in shallow snow. Caterpillar used Baranovsky, long, sawn her jigsaw into two parts. Stars also buranovskie. As the traction engine took skaterny 150 CC motor with a CVT. Differentials muravievskaya, the rotary electric motor of 1.2 kW from the mixer.
If you flip the binder “M-K” for a few years, then they will have a lot of materials about models of aircraft raketoplana scheme. But… time goes on and the situation changes. Three or four years ago, the leadership firmly seized the athletes who construct a model with a wing “rogallo”. Now the adherents of the rigid wing are almost gone – in the international competition of the Czechoslovak “rocketeers” make raketoplana aircraft scheme.
Want to relax and indulge in the sweet inactivity, lying in the sun in a comfortable lounger in a quiet corner plot of a country house? Tempting, isn’t it? To accomplish this, we need a little preparatory work is available, as evidenced by the Bulgarian magazine “Guide yourself”, any hardworking vacationers. Following the proposed recommendations, will be able to inexpensively fabricate this alluring sunbed on during the hot summer.
How many points of support should the aircar! Competition rules allow at least three. Earlier it was mostly given preference to such schemes to “extra” fourth wheel is not retarding the model. But someone came up with the idea to tear from track two. How to do it! It turns out, is only an extension of bar-spring rear track so that it turned into a wing. Yes, in the wing lift tail part of the body.