MODEL CONSTRUCTION

BRUSH WITH THE GLOVE

25.05.201813.05.2018Good recommendations

However, this may not be necessarily a glove, but a mitten. The main thing, of being somehow attached to a Shoe or clothing brush (e.g., nailed or glued), the glove will not allow the brush to slip out of hands during operation. This is especially useful for those people who have injured or missing fingers. Read more…

SAILBOAT UNDER… UMBRELLA

25.05.201813.05.2018Design

I think that the idea of using the umbrella as a sail come to mind to anyone who has solved it in a strong wind. However, the first whose attempt to use the umbrella instead of sail was in due time recorded in the journal “modelist-Konstruktor”, was Georgy Arbuzov, one of the pioneers of Windsurfing in the country and Chairman of the section of Windsurfing at the FPS of the USSR.

THE TESTER IN YOUR POCKET

25.05.201813.05.2018Devices helpers

By making a mini tester, for several years I use them when repairing household electrical and radio engineering. Assembled by the classical scheme, the device allows with a sufficient accuracy for practice to measure the voltage to 300 V in DC and AC, test resistors, diodes, transistors, and capacitors.

MEL FILE EACH

25.05.201813.05.2018Good recommendations

When processing a file soft and ductile materials cut quickly becomes clogged with sawdust. Cleaning the same tool is often more time consuming than the workflow itself. That it was a dispute before the grate in the notch of the file with chalk and sawdust are not in it to get stuck. I. GLUKHOV, G. Read more…

INDICATOR CROSSWIND FOR CAR

25.05.201813.05.2018Own hands

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.

A SKEWER FOR… WALLPAPER

25.05.201813.05.2018Own hands

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”

25.05.201813.05.2018Himself an electrician

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?

25.05.201813.05.2018Small-scale mechanization

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”

25.05.201813.05.2018World of models

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

25.05.201813.05.2018Devices helpers

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.