Someone who knows Morse code or just going to study it, can build a simple device, shown in the figure. On a plywood Board install the battery B and the lamp L of the flashlight. Contactor In the manufacture of contact plate faulty relay. Now connect the parts to each other by wires. To increase Read more…
Vitaly It student from Ussuriysk, VI all-Russian competition of young avtomodelistov won first place. His car with the air screw has a top speed of 128 km/h.
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…
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.
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.To register in the system can use the link http://blogun.ru/actorcjhgegg.html
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.