When ballpoint pens disposable over pasta, don’t throw it away. Pull the burner Assembly rinse it with Cologne and solder the electrical conductor. Passing the wire through the hole in the handle and setting the knot on the place you get comfortable pectroscopy for the tester.
O. GORYUNOV, Bishkek
Recommend to read
UNIVERSAL INDICATOR
Two LEDs with different color (e.g., red and green), you can build a simple indicator for voltages from 4.5 to 220 V. It is also able to determine the polarity of the source in the range...
CONVENIENT AND PRACTICAL
This series of tubes, mounted together, storage for brushes of a painter or modeller. To the plastic base, cut the plastic tubes or similar containers under the shampoos and other...
