Hello,
It is very interesting what one can read here.
I learn much.
I am French, of Bordeaux. Ex-technician in the µ engines (orders of flight, medical) => power 100 W 100.000 rpm, Laser, x-Ray, Ultrasound, compressor of medical air,….
Although I do not speak English, I manage to include/understand, with machine translation: that gives a very picturesque language!
If what I can write shocks you, me do not hold rigour of it: it is still the automatic translator
Thank you with all for your contributions.