A spectroscope is a device that allows you to study the spectrum of light by dividing its spectral components along a certain axis. Light can be divided into monochromatic waves either through the phenomenon of dispersion or diffraction. IN

It turns out that making a stylish leather case for your player yourself is not so difficult. We will need: 1. A little leather, the thicker the better 2. Thick cardboard or plywood 4. An awl 5. A blunt metal object 6. Water 7. A sharp knife.

Typically, such balloons fly very high and are carried away by the air flow for several kilometers. For Halloween, you can paint a face on the ball with black paint. When launched in the dark, such a ghost aircraft will be very impressive

An electrophore machine assembled from CDs and 2 coolers. Produces about 20,000 Volts, which is limited by the distance of the gaps between the plates of the disk capacitors. Photos and description of assembly. Easily repeatable device.

If your dacha does not yet have electricity and gas, and heating water is a certain difficulty, I suggest making a solar water heater for showering and washing dishes from materials that can often be found in a landfill.

If you are tired of the usual banal mouse pad, then make your own unique one that no one else has!

A bristle walker, a bristle bot, a vibrating walker is a simple toy that uses vibration for its movement.

This toy is very easy to repeat and is recommended for assembly with children of middle school age. Despite the general availability of the material (cardboard, paper clips, compact discs), it contains elements that require

This is a real firearm. Naturally, it will not harm you, because it is a toy pistol.

The air-hydraulic model is one of the simplest types in rocket modeling. It is characterized by simplicity of design and operation. This model makes it possible to conduct many different experiments and, most importantly, get acquainted with the action

Most people have an old refrigerator in their garage or shed. Why do they store it? unknown! If you are one of those people, then I suggest using this “hardware” for business. . .