If a barrel is poured in the vegetable garden or cistern in the shower — the water level in them will tell you a simple water-measuring device consisting of a Styrofoam float and stuck to his line or rod with the labels. For greater stability of water-measuring devices are required on the barrel to put the bar with the guide bushing.
Recommend to read
PLANTERS-IMPROMPTU
Large plastic bottles of drinks less thrown away, but are increasingly used for various craft projects featuring eye-catching appearance and good quality material. Here's another...
THE GRIP ON THE LEASH
Bench drilling machines (such as NA-10, NA-12), as a rule, is at any station of young technicians in every school workshop. There are some in our school (I work as a teacher). And once a...
