In our city a large traffic, not only on the main streets. And traffic lights are sometimes not on every street corner to cross the street in a place unsafe. Especially if the person is elderly or poor vision. Careless movement can result in an accident.
To avoid this, I suggest a walking stick to install the pump of the flashlight (Fig. 1), having painted it red napolcom (it better visible). A simple multivibrator (Fig. 2), mounted together with the battery casing of the cane (Fig. 3), causes the light to blink rhythmically, attracting the attention of oncoming pedestrians and vehicle drivers.
The cane can be used for other purposes. The watchman guarding the shop, the warehouse, the blinking light signals that the object is under observation. Paleobiological such a stick-flasher also come in handy: sleep will serve as a signaling device and flashlight at the same time.
B. FILIMONOV, Sverdlovsk
Recommend to read
“GHOST HIGHWAY”
Sports BMW M5 super-sedan release in 2004. Sports BMW M5 super-sedan release in 2004. Among car owners can always find many of those who have gambling, sports in nature — they prefer...
WHEN THE ANGLE IS NOT A PUNISHMENT
Sand the angle of the junction of the wooden parts is a handful. However, the operation is much easier and faster if use the bar, one face of which is cut down at an angle of 45°: wrap...
