Interesting. I never considered a brightness factor. I guess that would involve some surveying at night. Fun!

Awesome pic! I'm sure my wife, from Grinnell, must have seen it many times.

I don't like the description of what the app solves for. I've never heard of a regular triangle, so I looked it up. A regular triangle?ÿis one for whi...

Good info in the How Trees Grow paper! The railroad spikes I'm concerned with were set in trees only because there weren't any concrete structure...

Hope you meant rim of a sewer manhole!

How about acrylic clear coat spray?

To answer the original poster's question, this would be the easiest way to get a precise water surface elevation of a still pond.

I do this kind of thing all day, 5 days a week. I don't think there's a lot of precision involved. I do the best I can under varying conditions. The w...

Good point. The old SMI software would give the user a proportion to see the soundness of the resected point. According to Stan Trent of SMI, if you w...

I didn't know that.

I would like to mention that some people feel it's necessary to balance turns within tenths of a foot. That's a waste of time. The instrument should b...

I understand, but sometimes you encounter a dogleg. If you use the 10m spec in the situation I mentioned above, you will be way out of balance. I just...

Thanks for the reply. Concerning balancing backsights and foresights, do you think it would be a good idea to use a percentage of the backsight distan...