16 homemade products that were familiar to every child in the USSR. Toys for children of the USSR, which were made from improvised materials.
Match trick secret. We hang shoes on the edge of the table on two matches
A useful and informative experiment on making a homemade battery. Testing its performance when charging a smartphone.
A visual experiment with a wire that fell to the ground. Let's measure the step voltage. Let's find out which step is the safest.
Surprise your friends with an unusual trick - nail a glass bottle to a tree. The technology is very simple, you will spend 5…
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…
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