Going camping on the bike, bring a little medical band-aid. In the event of a puncture it will replace and glue, and rubber patch. A. CARPENTER, S. Stepanovka, Zaporizka obl.
Recommend to read
DIGGING WITHOUT LOSS
The design, which will be discussed, could be called a potato harvester as it consists of several relatively independent units. The potato is intended to be coupled primarily with a...
MICROSCOPE FROM A WEBCAM
Talk about making microscope with computer connection with an increase in 300-500 times. This increase is enough for examining the cellular structure of plants, observing the behavior...
