Definitely interesting clue is given in No. 2, 1982, in the article “Handsaw — a universal tool” to fix on one drank the landlord several Polota. Want to offer a design that allows to change the distance between the blades. To do this, make two threaded rod-holder, fixed on the ends of the hacksaw. It remains to screw them into the nuts-limiters; sequentially inserting and fixing the saw blades, will get a “multicore” with a hacksaw, three or five simultaneous cuts. V. SESNY, Kherson
Recommend to read
RECUMBENT FOR KID
The idea to design children's recumbent came to me not by accident. The fact that all of the current children's pedal cars are not without drawbacks. The idea of the idealized child...
Will heat and produce biogas
Biogas. Used as far back as ancient China and then “rediscovered” millennia later as a “non-conventional, environmentally clean energy source of the 21st century,” it is attracting growing...
