i did get a few more of them, but this one i liked best ... i think i got about 10-15 shots of them, but ended up with 3 good ones (then my memory card ran out, i had come from shooting architecture, these guys were by accident)
Luv that second pic and Stewart is right in that it would have been interesting to have captured the bit movement as well. Still like it the way it is though.
I'm also curious as to what they're using Liquid Nitrogen for (the dewars in the first pic) typically they use dry nitrogen for pressurising communication cables for keeping them dry and water out but liquid would probably be used for freezing something.
One other side note, if one of them ever breaks or tips over do not let any of the liquid touch you or you'll get instant frostbite! (see Terminator 2 for results).
You have very interesting subject matter and enjoy the pictures. I have a few things that may improve them just a little. The only problem I have with the first one is that the fed ex van sort of grow out of the bottles. I love the second pictures, but I'd like to see the jack hammer shifted over to the right a little. Don't get my message confusd though, I like you pictures just trying to give some constructive
during the day i shot the nitrogen tank ... i was in the middle of rush hour downtown New York ... everything was moving in and out of my shot ... had to react fast ... the luck of the draw i guess
the construction workers ... i kinda had to move around them while they worked without being intrusive .. also ... the photo was cropped .... i beleive i had a shot up to his chest, but his feet were more interesting ...