Do it yourself - with your own hands. Page 366

This simple device can be useful for you when fishing, hiking, etc. places. You can use it to charge your mobile phone, MP3 player, flashlight, etc. A lightweight, compact wind generator will become your assistant. . .

There are films, pictures and even games on the Internet that can be viewed using 3D glasses. But where can I get 3D glasses? Here you can not only build your 3D glasses, but also test them.

As it turns out, quite ordinary things can be made into very unusual ones. For example, let's make a metal detector out of a radio receiver and a calculator. . .

This is the kind of cocktail you can make at home. It's not difficult and quite doable. It all depends on the density of the liquid and the order in which it is infused. . .

Over its almost 300-year history of development, the microscope has probably become one of the most popular optical instruments, widely used in all areas of human activity. It is especially difficult to overestimate its role in teaching schoolchildren who learn

A hard drive with a spindle speed of 5400 rpm should not. use an electric heating pad. At the same time, thanks to proper ventilation, the temperature in the case did not exceed 39-40 degrees. The question arose about additional cooling of the hard drive.

Another interesting variation on the theme of water cooling. This time in an external version with a large radiator, glowing fans and a blue water tank. You can do all this with your own hands, spending less than a thousand rubles.

Instructions for making Bi-Quad W-LAN - 2.4 Ghz antennas. A piece of foil PCB, getinax or just tin is suitable for the reflector. The dimensions of the reflector are not very critical and, if necessary, can be slightly reduced. As

HDD creates quite a lot of noise due to vibration and its transmission to the system unit case. This can be fixed and your PC will run quieter. . .

3G USB modem antenna: to increase the signal level and, as a result, connection stability and speed, you can use a simple, cost-free method.

The first circuit is the simplest multivibrator. Despite its simplicity, its scope is very wide. No electronic device is complete without it. . .

There are many different types of flies in nature. However, the most common is the housefly.In rotting waste, in rotten vegetables, in garbage, the fly lays up to 100 eggs at a time, from which larvae emerge after a few hours. Through

Place a glass jar upside down on top of the crossed threads. A mouse that attacks the bait chews the thread, and the glass jar held on by the threads falls on the rodent.

The amplifier is assembled on a TDA7262 chip, the power in stereo version is 35 Watt, and in mono version it is 80 Watt.

Is it possible to photograph the Moon at home? “It’s possible,” will answer the person who has never held a camera in his hands. “No,” the professional will answer. To do this, you need expensive photographic equipment costing at least $1,500. An ordinary camera will only remove

Interesting experiments on how you can trick your brain. The article provides various options. . .

Here you can clearly see how an ordinary electric current flows through an ordinary sausage. By the way, the sausage was not damaged after the experiment, but on the contrary, it became appetizing and hot :-)

Summer comes, and with it mosquitoes and all sorts of other midges appear. Everyone knows how annoying mosquitoes are, especially at night. The proposed device allows you to protect yourself from all insects, and if you increase the frequency of the generator to ultrasound, then also from dogs.

A lampshade or lamp cap does not need to be purchased in a store. You can make it yourself. After renovating the room, a length of fiberglass remained.You can assume that you have in your hands the best material for making one or more

For a long time I wanted a T-shirt with an inscription like in the picture, but I couldn’t find it. It turned out that you can make ANY picture or inscription on a T-shirt yourself. . .

Investigative practice shows that lies and denial of guilt by criminals during interrogation are associated with various physiological phenomena. First of all, this is an increase in blood pressure, a change in skin moisture, as well as uncontrolled swallowing of saliva,

A very simple and effective shoe dryer is described here. Thanks to constant air convection, it dries shoes much faster than conventional dryers, and its small dimensions allow you to take them with you anywhere. . .

A simple, and I hope interesting for you, circuit for LED automation. The LED will turn on and off automatically depending on the lighting.

It often happens that you quickly need to cool your drink. If you just put it in the refrigerator, it will take at least 30 minutes, but you need it faster. . . .