We practically continually faced with a variety of fine bubbles, whether drugs, herbs, solvents, perfumes, mascara or nail Polish. And they have one common drawback: volatility. One careless movement — lo and behold, the fold is overturned. However, the bubble will never fall,- if to use here such device. Take a circle from a rubber, soft plastic or cardboard, make a middle crosswise cut and put on the bottle: higher stability is guaranteed.
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FROM THE BARREL — STRETCHER
They can be made in just a few minutes. For this you need to saw off part of an old metal barrel and attach it with bolts to handles (e.g., spade handles). Yu MACHALA, 13 pet., Lviv, Ukraine
A WING FROM FOAM
"I suggest, I have developed a method of manufacturing a wing for a model aircraft, — says the head of the aeromodelling circle in the House of pioneers of the city of Serebryansk...
