Lava lamps appeared in England in 1963. The invention belonged to the scientist Edward Cravan. The lava lamp was a tall glass vessel with a colored liquid in which glass balls floated.

A solar battery is a device for converting solar energy into electricity. High performance solar panels, which you can buy at Radio Shack and other stores, are made from specially processed silicon and require

On this page I will tell you how to convert a personal computer power supply into a charger for car (and other) batteries with your own hands. The advantages include the fact that with this charger

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

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

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

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

This small refrigerator will be a great help in the summer heat. He will be with you anywhere - at home and at work. . . .

To create a robot arm, you use a piece of corrugated plastic tubing, a CD case, twine, glue and duct tape. The manipulator itself is strong enough to hold, for example, a bottle or a cell phone.

Converting a regular light bulb into an LED light bulb. The photo shows examples of manufactured holders for LEDs. Using this technology, it is possible to produce a holder of any shape for LEDs of various sizes and with any number of them.

An article about how to make a vibration mouse for computer games.It will add realism to your gaming world and allow you to get much more pleasure from games. And CS 1.6 will appear before you in a new form!

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

A very unusual and unique shelf for books, which is invisible, and in the literal sense. . .

A tumbler is an interesting toy that everyone will be happy to play with, and it’s not difficult to make. . .

The funny thing is that when he touches an obstacle with his right tendril, the steam wheel stops and he turns to the left, and vice versa. (Goes around obstacles)

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

What's a disco without a disco ball? But it is not on sale! No problem . . . .

A DIY subwoofer is much cheaper and of better quality than Chinese models. And much more beautiful. . .