When working with such sensitive measuring instrument like micrometer, it is necessary to hold it with two hands — and what to hold on to what is measured! A kind of third hand may be that the bracket on the stand that allows you to quickly secure the MIC, freeing your other hand for holding the measured part.
Recommend to read
THERMORESIN FOAM
If you have a rectifier for charging automobile batteries, a step-down transformer or Latr you will be able to make thermoresin cutting foam. The cutting part is a piece of nichrome wire...
How to change the voltage?
The simplest electrical devices that our magazine offered to beginners work from a 3336L battery for a pocket flashlight. But it cannot provide much energy: after several hours of...
