Do it yourself - with your own hands. Page 84

The laser beam is very well modulated by sound vibrations. It is enough to connect the module from the laser pointer to the output of the low-frequency amplifier and you will have a ready-made audio signal transmitter in the light range. Accept and convert

This instruction will help you convert the power supply into an adjustable one. If you have a 19 V power supply from a laptop or a 12 V LED garland unit, then all such sources can be turned into adjustable ones and installed on

To create first-class home decor, you don’t have to use expensive materials. By showing imagination and ingenuity, such accessories can be made from anything. Let's look at decor ideas made from cans.

Holes appear between the legs of the jeans on either side of the center seam, which, although they look terrible, can be repaired.If you have a sewing machine, then this will not be difficult at all. Sewn by the proposed method of rubbing on

The reason pedestrians fall on the street in icy conditions is a sliding sole. Walking in such shoes often ends in serious injuries, and at least painful bruises. Let's look at some tips for choosing shoes and what to do to ensure that their soles are

Filleting herring is one of the least favorite things for many people. This takes 5-10 minutes, and sometimes longer. If you learn how to peel a herring this way, the whole process will take you 10 seconds.

When studying the nature of various physical phenomena and processes, it is interesting to conduct visual experiments. One such experiment is a demonstration of the operation of a simple radio transmitter and receiver. You can make such equipment yourself.

Instead of throwing away plastic bottles, you can use them to make transparent wave slate. It is perfect for roofing outbuildings, greenhouses, enclosures and animal cages. This slate is made with your own hands using

Large cut pork lard can be prepared in hundreds of different ways.Try these 2 recipes that make brisket better than store-bought sausage.

This simple modification to the electric motor will increase its power, speed and lower the supply voltage. The efficiency will remain unchanged; the law of conservation of energy has not yet been canceled. Perhaps you have already had a similar need, reduce the supply voltage

Cleaning rusty parts from corrosion is a long routine job. In order not to bother with this, various liquids are often used that allow this to be done with minimal effort. Let's compare them in terms of cleaning efficiency of equally rusty springs, and choose

Polyurethane foam is not as simple a material as it might seem at first glance. Its scope of use is not limited to filling gaps. Let's look at a couple of useful tips and tricks for using it.

Champignons are everyone’s favorite mushrooms, which are used in cooking raw, fried, and pickled.

To install wire clamps, it is convenient to use a clamp. This device allows them to be tightened securely, which is important, for example, if you need to connect a high-pressure hose to a fitting. Making a clamp is very simple, you literally need

Almost any stove can be quickly converted into a firebox by working it out in a tray. This is much easier than assembling a fuel drip system. Against this background, the question arises: how long will the waste burn when burned in a bath, and

With the advent of a car, you involuntarily begin to understand the types of treads and tire sizes. For many drivers, it will be a revelation that in addition to markings on the sidewalls of tires there are also subtle triangular indicators. They

It is impossible to make a large, perfectly even hole in sheet material with a jigsaw or grinder. To do this you need a special tool, which is easy to make with your own hands. Combined with a drill, it is capable of cutting round holes in plywood,

Spark plugs sometimes fail or start to work worse. To determine such deviations, you can use a multimeter. With its help it is easy to check all the spark plugs in just 1 minute.

It is impossible to bend a large-diameter thick-walled pipe with a manual pipe bender. This is done in another accessible way. It is suitable in cases where the pipe will not be used for a gas pipeline or water supply, but only as a power structure.

Potbelly stoves in city garages are often idle due to a lack of firewood, since there is simply nowhere to store them. This problem can be solved by using spent fuel as fuel. Let's look at how to use it in conventional stoves to

Wine and champagne corks can be used to make handles for knives and spinning rods, as well as floats and other crafts. But before that, they need to be straightened, since they lose their shape after being in the neck of the bottle. Do it

To make your life better, you can collect various simple devices that save time or solve other problems. Such developments are simple to implement, but make life much easier. Let's look at 5 fresh, useful ideas:

As a scientific aid for visualizing the laws of aerodynamics and gaining practical skills in aircraft construction, you can assemble a model of a single-axis twin-rotor helicopter. All the materials needed for this can be easily obtained. This is interesting

In order for your TV to pick up the TV signal, you need to install an antenna. If the broadcasting tower is located nearby, then the simplest receiving device without an additional amplifier is sufficient. Let's look at how you can make it yourself.