By introducing into the consciousness of thoughts about the need to install energy-saving lamps at home, many began to massively put them at home. But soon you are surprised to notice that the durability of such lamps is a maximum of half a year, the brightness and temperature of light

It was evening, there was nothing. Climbing the Internet, I came across this device: And I really wanted it, but as it turned out later it is not sold in our city. Well, they don’t sell, then we’ll make it.

We bring to your attention two miniature soldering irons, the most affordable in manufacturing and satisfying the requirements for the installation of miniature electronic products.

Disco strobe with amazing police flasher effect! Compared with xenon, LED is more durable and unpretentious. It can also be used for cars. . .

One of the simplest devices is a hidden wiring detector. It is simple, but it is indispensable for repairs. . .

Although the economy lamp, depending on the manufacturer, there is a guarantee, and even up to 3 years. But consumers may be faced with the fact that the light bulb burned out, but you did not have the packaging, purchase receipt, the store moved to another place, i.e.

The generator is very simple in the truest sense of the word. You can use it in wind generators, some other devices for generating electrical energy, or just watch the video and get acquainted with the operation of the electric generator.

Why did I call this flashlight unusual? - Yes, because its design includes only 4 components: a pack of cigarettes, a few coins, an LED and ordinary water. . .

Sometimes it becomes necessary to make a big noise for the TV and radio range. For example, your wife watches "Do not be born beautiful," and you need to see the Champions League. For this purpose, use special devices - "Silencers" or popular

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

The first scheme is the simplest multivibrator. Despite its simplicity, its scope is very wide. No electronic device can do without it. . .

Here you can clearly see how an ordinary electric current flows through an ordinary sausage. By the way, the sausage didn’t suffer after the experiment, but on the contrary it became delicious and hot :-)

Summer comes, and with it mosquitoes and all sorts of other midges appear. Everyone knows how mosquitoes annoy, 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 from the dog

The following practice shows that lying and rejection of guilt by criminals are associated with various physiological phenomena. Before, this is an increase in the pressure of the blood, a change in the moisture of the skin, as well as inadequate ingestion of saliva,

Simple, and I hope, an interesting diagram for you to automate the LED. The LED itself will turn on and off depending on the lighting.

It describes a very simple and effective shoe dryer. Thanks to constant convection of air, it dries shoes much faster than conventional dryers, and its small dimensions will allow you to take it with you wherever you go. . .

An ultrasonic washing machine is intended for washing clothes with the help of sound vibrations created in the washing solution, the frequency of which is close to ultrasonic. The features of the trigger are that when washing there is no mechanical friction of the laundry,

In this article, we will make a directional microphone or "electronic ear" from a megaphone.

Electrophore car assembled from compact disks and 2 coolers. It produces about 20,000 volts, which is limited by the distance of the gaps between the plates of the capacitors of the disk. Photos and assembly description. Easy repeatable device.

ELECTRICITY FOR FREE (DO NOT COLLECT THE COUNTER) For lighting, powering the TV, refrigerator, other electrical appliances. No need to "improve the electric meter, connect to a neighbor, replace existing electrical appliances - you don’t need to do anything!"

Many people know about the existence of voltage in telephone wires (about 60 volts), but few thought of using it for their own purposes. After all, this energy is free! You can, for example, power a table lamp. Maybe someone is the smartest

We remake an ordinary light bulb into an LED. The photo shows examples of manufactured holders for LEDs. Using this technology, you can make a holder of any shape for LEDs of various sizes and with any number of them.

To build an electric motor you need only a few things. 1. Battery (or any other small source of energy) 2. A coil of wire 3. Electrical tape 4. 2 pins or paper clips (you can use other items or make holders from

Many modern mobile phones, smartphones, PDAs can be charged from the computer’s USB port (cable is included). But, for example, Nokia smartphones have a separate connector for charging, therefore, cannot be charged in this way. For those