“Ah, summer red, I would love you, if not for the heat, and dust, Yes mosquitoes, Yes flies”. And although the high poetry of the great poet little combined with the dry prosaic lines, technical articles, these words can be safely put as the epigraph to this material. To stop the change of seasons in nature is impossible, and every year we have a “happening” summer, and with it come the usual worries of relief and localization of negative emotions, invariably manifested in humans with the appearance of annoying flying insects — mosquitoes, flies and other midges. To protect yourself from them, in nature and even at home someone buys a mosquito net, others treat themselves and family members with special insect repelling creams and formulations. However, possessing the skills, you can build a simple circuit protection device against mosquitoes, operating by using of ultrasonic radiation. What is ultrasound?
PEACEFUL SLEEP (MOSQUITO DEVICE)
Coastal defense battleship General-Admiral Apraksin. Scale model 1:200.
The engineers of the German company E-Volo for the first time took to the air piloted quadcopter is like a helicopter flying machine, equipped with many small screws. With this design it is quite compact, lightweight and inexpensive. Multicopter with several screws already in place, but still, they were unmanned and controlled by radio.
IN THE ROOM:
In the room with high humidity on the surface of water pipes settles a large amount of condensate which is flowing down to the floor, leads to a rapid corrosion of metal pipes.
You can finally do something with my old LCD monitor lying around in your garage. Turn it into a spy monitor! All around it will look just white screen, but not for You, because You have a special “magic” glasses.
This advice will be useful to motorists, loving care and not shy to Tinker themselves with their car.
In the processing plane of the edges of the wooden parts is difficult to adjust so that the tool cannot slip sideways and did not spoil the work.
Only 30 years ago, no one could tell what it is, not to mention what wonders he can create. Times have changed. And today it is difficult to imagine a modern home or office where there is at least one such revolutionary inventions.
Through the study of Dutch scientists to save people from a variety of neuropsychiatric disorders ranging from a variety of phobias and ending with post-traumatic stress disorder.