What if it's night and you want to find north? How do you locate the North Star in the night sky?
Suppose I want to play a 10-people outdoor ultimate frisbee game at night, with no power outlets available at the field. I expect it to last no more than 2 hours. What kind of portable power supply ...
How to learn to find north using moon phases? I'm looking for easy-to-remember rule of thumb, at best some simple graphic. It's quite trivial by full moon. Since full moon is in direct opposition to ...
I was geocaching a bit and I've found in many caches the warning not to cache in the night during the winter because of hunting season. My question is, have such limitations a legal basis, and if so, ...