But if you want to go the extra mile you can’t beat electroplated through holes. The setup seen above ... The portion of the metal which will stick above the chemical bath was coated with ...

or a nuclear containment chamber which has walls made of thick metal. Now let’s say you want to transmit power or data through this wall. Obviously you’re not going to want to drill a hole ...

On the other hand, cased-hole logging involves retrieving logging measurements through the well casing, or the metal piping that is inserted into the well during completion operations. Cased-hole ...