In the baths of the old sample, where the shower head is located high on a tubular rod, the water sprayed too wide, gets on the floor. “Curb” this water fan will help a kind of “lampshade” from strips of plastic sheet fixed with wire on the shower head, as shown in the figure.
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A CIRCLE WITHOUT A COMPASS
The sister with the cutting it took to draw a circle the diameter of which more than allows a compass. Rescued... a school ruler, which my dad drilled hole (see figure). The first of...
THE LIGHT WILL ACTIVATE THE SIREN
The proposed German magazine "Funkamateur" light relay is activated when light falls on the photoresistor R1 (see diagram) — when this occurs, a loud siren sound. Transistors VT1, VT2...
