Fast drive is always fraught with additional danger. Often, even experienced drivers do not take into account all factors that can play a fatal role and lead to traffic accident. Such factors include lateral wind.
INDICATOR CROSSWIND FOR CAR
A SKEWER FOR… WALLPAPER
Most of those who have decided to paste over the wall Wallpaper flat on their own, most often the whole day “bow” to each ordinary cloth, usually as a pack of cut of the Wallpaper have for spreading their glue directly on the floor, for lack of a suitable length of the table.
However, the Polish magazine “zrobi Sam” suggests that such work can be performed on an ordinary table, and it is important! – even alone: you simply have to modify the technology and use simple homemade device that provides besides the possibility to do without tiring bows -to prepare panels of standing.
SIZE ADAPTER “CROWN”
When you turn on the power source smoothing capacitor C1 is gradually charged via the resistor R4, serves to protect the diode bridge VD1 overload. There is a voltage at the output of the trigger divider. Due to the fact that it affects the resonant circuit, consisting of transformer T1 and capacitor C2 in the secondary winding II is induced EMF from the pulse, the power of which is sufficient to switch the transistor VT1 is in the saturation state, although the initial moment of time the current through this semiconductor triode is not due to the self-inductance of T1. Then starts to do the “addition” from the winding II, holding VT1 is in the fully open position.
AS FOR THE VILLAGE WITHOUT A TRACTOR?
For many years Hobbies of technical creativity as the main source of materials and machinery for me was a different sort of scrap yard. Out in my shed “migrated” all that seemed valuable to me, and was waiting for their application to varying design. Unclaimed gradually accumulated, and eventually the question arose: what to do with it? Would not go. Here and decided to maximize all these different glands in your new tractor. Design “Angara” started with a sketch drawing of the design. Then, after the detailed execution of working drawings, started construction. The result was, in my opinion, quite aesthetically pleasing, technologically advanced and reliable machine, with a reserve for possible future upgrades.
THE WAY TO “EAST”
The subject of today’s article – geophysical rocket R-2A. In previous publications we described in detail the technology of making copies of R-1 and R-2. The same technology used to create the model of R-2A. Will not be superfluous once more to tell for those who have not read those numbers.
I want to draw the reader’s attention to the fact that a copy of the R-2A for the competition will undoubtedly be more difficult than the previously described R-1 and R-2. But it justifies itself. First, the presence of side boosters (containers) due to the complexity of manufacture of the Central block leads to an increase in points for “the stand”. Secondly, if you do the ejection side of the mortars in the model (but more on that below), increased the rating for the flight demonstration.
YOUR E-PSYCHOLOGIST
A set of electronic devices that use psychologists is constantly expanding. In addition to the “Polygraph” (the”lie detector”), there are other devices to test the emotional state of the person. The hallmark of the modern psychologists is electronic visual and sound indications, the ability to connect to the computer and transfer data across large distances. A simple device of this type it is not difficult to do with basic skills build the circuits.
CRUISER 3 RD CLASS LAVOISER
CRUISER 3 RD CLASS LAVOISER. Scale model 1:200.
“Colonial” cruiser of the 3rd class “Lavoisier” was laid down in Toulon in January 1895, launched in April 1897, and finally completed in 1898..
Just series had three ships, but “Galileo” and “Line” ended his service in the years 1910-1911. “Lavoisier” had a chance to take part in the First world war. In the beginning of the war – the protection of French fishing vessels off the coast of Iceland, patrol in the English channel, in Port said, Eastern Mediterranean. From September 1916-often in Morocco, July 1918 – again in the Mediterranean. In 1919 disarmed in 1920 decommissioned.
THE WAY TO “EAST”
Model-a copy of the ballistic missile R-2
In 1951, took arms ballistic missile R-2 (product 8Ж38), created under the leadership of S. P. Korolev. Its performance characteristics were: missile launch weight of 20 to 300 kg, the maximum flight range is 576 km, mass of warhead – more than 1000 kg. R-2 to improve accuracy in lateral direction had a system of the frequency control with two antennas on the body, weight an untucked missiles – 4430 kg.
RC “TRAINER”
Simple, easily repaired, volatile, inexpensive… That’s only part of the requirements for training RC model aircraft. These requirements are fully satisfied “Trainer-RC” — RC plane engine with a working volume of 6.5 cm3 type of MDS or 0.S.MAX-40LA.
ELECTRONICS: FROM DESIGN TO FILLING
It would seem that all good pocket flashlight “Elektronika B6-03”: from design to filling, including a fairly capacious battery of three disk accumulators D-0,26. But… As shown by operating experience, the charger it is truly useless.
