Hertz is the number of cycles per second in an oscillating wave form. So 60Hz has 60 identical cycles in 1 sec. An Ampere (amp, or A) is the amount of electrons (or charge) that flow past a certain point in one seconds. So amperes are Coulombs/second.
The most and the least painful places to get a tattoo. Shoulder. The shoulder is the least painful tattooing site for two main reasons. First, because in this area there is a greater amount of muscle and second â nerves are not so much sensitive as in other nooks of the body. This area is often the most used and first timers tend to opt for them.
Stage One â Tattoo Oozing and Soreness. This first stage of healing starts as soon as you get off the tattooistâs chair. The area in which the ink has been injected into is now a large open wound and the skin will start producing plasma straight away to begin the clotting and scabbing process.