This simple design idea describes a two-way current mirror that, in dubious analogy to the optical kind, can mirror or transmit according to whether the input or output side is more positive. It ...

The trick of the two-way mirror is accomplished through manufacturing and lighting. To make this type of mirror (which are ...

Let’s say you’re not in an interrogation room, but instead in a hotel room, and you want to check if the mirrors there are one-way or two-way.