You love music, but not always have enough time and opportunity to go to the Opera or attend a concert. However, modern high-quality instrument sound allows you to “go” at the concert of your favorite artist and comfort of your own home. But before you buy such equipment, you need to know what requirements it must meet.THERMOSTAT
This device is not very complicated and consists of the heating element, the mercury column and the solenoid. When the current is switched on starts to operate the heater — closed working contacts of the relay. When it starts to heat up the mercury, and the column rises to the level of the contact turns Read more…



Fighter Messerschmitt BF-109 first modifications. The Treaty of Versailles in 1919, signifying the end of the first world war, significantly limit the military potential of Germany. The Germans were allowed only to have a 100-strong land army, devoid of all heavy military equipment, but German industry was forbidden to carry offensive weapons.

Currently, it has become fashionable household electrical lamps with shades. The publication describes this decoration to the lamp, which is easy to do it yourself from simple materials.
For processing small crafts of wood and plywood a very handy tool may be Rubanchik, which is easy to make yourself.

Offer readers a description of the design built my trailer. The creation of this garden on wheels gave me the tools and guidance previously published in the journal (for example, No. 8 1969). But much had to think out myself. The trailer was simple in design, compact to transport, convenient to the Parking lot in the chosen place of rest.
“Any space flight at the present time is a very big and difficult work in space and especially on the ground.
This is an interesting and at the same time very simple machine, which we want to tell you today, already mentioned in the ninth issue of our journal in 1974 (see the essay “And we in the yard”). In addition, it could see many visitors ENEA: “duet” scooters were shown in the pavilion “Young technicians”. The car enthusiasts of technical creativity, and the editors have received many letters from readers with requests to publish more detailed description.
