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.
Here's the top 10 of popular tattoo spots for women and girls: 1  Just above the ankle: the ankles are another popular tattoo place, very feminine. They are easy to cover up if you want to (by wearing socks) and not so problematic as foot tattoos. Ankle tattoos are usually small and can be very cute.