If you do not have a special needle for inflating nipple of a volleyball or soccer ball, take advantage of… ordinary medicine dropper with an elongated spout. Rubber part is a bit cut and put on the pump hose, and the glass type in the pin hole of the ball. Pumped the ball a “needle” much quicker. N. ZHIRKOV, Lipetsk
Recommend to read
CHARGING WITH THE PREVENTION
In the process of operation acid batteries gradually sulfation of the plates which reduce capacity and shorten the life of the device. To eliminate this undesirable phenomenon, a special...
LET THE WIND
The wind has always been a symbol of impermanence, and attempts to transform its energy into electrical energy has led often to results that are not very encouraging. Indeed, everything...
