So, I ran out and purchased that Braille compass we were talking about last week.
Well, I've already sent it back and gotten my refund. My tests showed that it was just unreliable. Or at least, the settling time was extreme. I laid it flat on a level table. Let it settle. Opened the cover and it correctly pointed North. I then closed the cover, rotated the unit 180 degrees, counted to ten and opened the cover. It had barely moved so was about 150 degrees off. I did this about 10 different times, variously rotating the unit 90 or 180 degrees. I increased my wait time to about 20 seconds. Some times it did show North correctly. Other times it was 90 degrees or more off. I wasn't expecting much, but I was expecting a little more than that. -- Blue skies. Dan Rossi Carnegie Mellon University. E-Mail: [email protected] Tel: (412) 268-9081
