A 180-degree angle means that there is no difference, which is fairly true for CRT and plasma screens. However, viewing angles differ between LCD and front and rear-projection screens. Horizontal ...

One that I hear a lot is that you must never put a 90-degree angle on a trace. Some fear the mere sight of a 90-degree angle on a PCB tells everyone you don’t know what you’re doing.

The challenge consisted of climbing 999 steps at a 45 degrees angle. It began at the bottom of the Tianmen Mountain Road, which has a stairway and 99 dizzying turns. The hybrid SUV is the first ...