THE TIP IS IN THE TUBE

EDGE — UPAs you know, carrying sharp objects without case – for example, ski poles, public transport is not permitted. Existing ferrules, no skier no use: they are plastic, from the cold lose their elasticity to be back on lost. I have for several seasons used homemade tips red medical tubing Ø 10 mm. rubber held tightly on a stick, and if necessary easily replaced.

 
P. DIDENKO, Krasnoyarsk

Recommend to read

  • THE DIAMETER OF THE LINE…THE DIAMETER OF THE LINE…
    To know the exact diameter of the wire will fail, and no micrometer or Vernier caliper, if you use ... normal range. This is quite tightly wound on the rod a small number of turns of wire,...
  • ELECTRONIC METRONOMEELECTRONIC METRONOME
    It is used in teaching music in rhythmic gymnastics, in experiments in physics etc. a Metronome, a scheme which offers Bulgarian journal "Radio Television Electronics" (see Fig.), gives...