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, then measure the width of the winding divided by the number of turns: the number obtained will be the required diameter.
Recommend to read
MINI-CASE AT THERMOMETER
Mercury thermometer, as we know the fragile and the contained mercury is also very dangerous. So if there is no standard paper sheath for it that will help out a makeshift rubber tip....
SCHEMATICA CLIMBS
We offer a simple glider is designed for young athletes, students 4-5 classes. The model is simple to manufacture, does not contain elements from scarce materials and can be recommended...