To fully exhaust aerosol spray can, which is usually just thrown away, there are wonderful sites: valve and spray head. The latter, for example, can turn into a spray of ordinary rubber tubing. You only need to choose a tube head tightly into the hole of the proboscis pear.
Recommend to read
LED BY THE SUN
It would seem that there is nothing complicated in the design of a bicycle driven by the energy of the sun: install a solar battery of the required capacity and a simple electric motor -...
PAINTING THE FRAME, WITHOUT STAINING THE GLASS
help here's a basic clamp, cut and bent from aluminium sheet 1.5 mm thick.
