Good country spotlight for night lighting, scaring the unwelcome four-legged and even two-legged “guests” can be made from old car lights: its mirror reflector focuses well and this increases the luminous flux even from low-powered lamps.
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FIRE BRUSH
Appeared in the sale of original brushes for drawing, the pile of which is pressed into a special plastic handle, as the core of the pencil. To "sharpen" enough to hold the tip over a...
POWERED FLASHLIGHT
During the experiments, building various electronic projects there is often a need for a DC source of relatively high capacity. For example, the battery voltage of 4.5 V is composed of...
