Sometimes we get all caught up in the high tech gadgets of today and totally forget how to function with the basics. Simple machines can do amazing things when you really think about it.
For instance, I used to work in the theatre and we had a very high, very scary catwalk. (Very high and very scary for someone terrified of heights, anyway.) Now, a lot of the lights that are used in theatres are pretty big, and we had perhaps fifty plus mounted up in this catwalk at any given time. How crazy would it have been to try to lug all those babies up the very high, very scary ladder?
A pulley system gave us a huge mechanical advantage. Plus, it meant I only had to go up that ladder once to work and then back down once. (I was really more terrified of the ladder than the catwalk itself.) As long as I had a helper on the ground, we could hoist those huge things up, and lower them down all day long. We were also known to send a Mountain Dew or two up that way, as well