I finally was able to make it back to the Interactive Science Museum and get some pictures of the mill machines there. This time, however, I had my tripod with me, so I didn't have to crank up the ISO and then de-noise the images.
EXIF Info
Shutter Speed:15s
ISO: 100
Aperture: F/13.0
Focal Length: 25mm
Lens: Tamron 17-50mm
I particularly like the above image because of the composition - I did crop it slightly in LR4. The frame of the machine works well to frame the image, the green of the machine, the blue lights underneath, and the wood in the background.
I also did some toned images there - selenium, a kind of black and white. Take a look at my Flickr page for those.