A clock - a night lamp - is a great thing for those who like to wake up at night. Usually people wake up in the middle of the night and frantically search for their mobile phone to see the time. Our craft kills two birds with one stone: this is the backlight and a nightlight. Quite light

The principle of operation of the Van de Graaff generator is very similar to the principle of the Wimshurst machine, but instead of rotating disks, it uses a moving belt on two pulleys. The belt is electrified from friction on the lower pulley (in large machines it

I think many remember Leonid Gaidai’s famous film “Operation Y and Shurik’s other adventures,” how they passed exams on the synchrophasotron. This is precisely what this miniature device collection for examinations will be about. And start

In the article I will tell you about two designs from a conventional webcam: the first is a counterfeit banknote detector, the second is an infrared camera that sees in 100% darkness.

We all believe that nothing can happen to us. That our train will never go off the rails, the car will not stop in the middle of the road with a broken wheel, and the mushroom trip will end successfully and the path will lead directly to the house. Usually, in 99.9% of cases,

No, we did not make a reservation. Not copper sulphate - you have probably received these crystals, and more than once, but real metal copper.

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

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

Despite the fact that the sale of hydrochloric acid is limited and it can be difficult to buy at retail, everyone can easily make it from polyvinyl chloride - one of the most common plastics. PVC make wire sheaths, toys, many household and

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

In various consumer electronics, protective glass is often made from plexiglass. This is a good material, if not for its one drawback - scratches can easily appear on it. We tried to describe the most affordable polishing technology.

The air-hydraulic model is one of the simplest 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

It turns out that laser setup is just as simple. Then I will tell you how to make a laser installation, called - Spirograph!

Another rather dangerous experiment. In no case do it alone. Only under the supervision of professionals. Connect the stylus from the pencil to the machine battery, you get a flashlight. But if connected incorrectly, everything can burn out.