Do-it-yourself phone USB repair

So ... A year (or maybe less) has passed since the purchase of the smartphone. You began to notice that the cord connector began to stick badly in the smartphone socket. Sometimes you put it on charge ... But charging doesn’t happen! You start to move this very connector ... Oh !!! Caught!!! The charger is on! And so every time.

Humane homemade mousetraps

There are many ways to deal with mice. But today I want to offer those methods that will suit “lovers of our smaller brothers”. These methods are for those who want to catch a mouse and take it somewhere far, far away, where it will be as good as in a human dwelling ... - in a dense forest, i.e. into the natural habitat. Let him create his own habitat there, communicate with nature :)

How to make a homemade electrode for welding

Agree, there are times when, in the midst of work, the electrodes suddenly run out.
Unpleasant. I didn’t think, I didn’t calculate, I didn’t stock up. It’s good if the neighbor is also a welder and helps out with a dozen other electrodes. And if there is no place to take it? And the work must be finished!

Anti-Vandal Bolt with a secret.

Everyone knows the simplest lock on the door in the form of ... a deadbolt.
It was invented several thousand years ago and little has changed in its design over the years. Nevertheless, I want to suggest that you slightly improve this mechanism, increasing its resistance to hacking.
A little about the design...

Test. What will happen to the circuit breaker after the short-circuit current

Each k.z. creates carbon deposits and scales on the contact area. The contact resistance of such a contact increases markedly and the machine will not be able to work even at rated currents - the contact will heat up and at best the thermal release will work, and at worst ... it can melt the case and even ignite it.

10 life hacks to help you

The beach, the sun, the sea… Having warmed up a lot under the rays of the sun, you finally decided to plunge into the sea.
Surely you will take care of the safety of your things. Well, if you are relaxing in a big company: someone will go swimming now, and someone later. If you are alone or there are two of you, you can ask the neighbors on the beach to look after things, although ... who knows what they have in mind?

How to turn on lighting from 100 places?

The circuit below is devoid of this shortcoming. Moreover, in the control circuit it is possible to use a cable with a small wire cross-section, because control current is small. (savings are obvious)

How to make a night vision device with your own hands

If you really need a night vision device, a simple modification is not necessary to spend a lot of money on a factory one. If you are able to find all the items listed below and you have 1 hour of free time - try to assemble the simplest night vision device with your own hands!