This simple brass spring is the back end of a common home hygrometer.
Hygrometers are used to measure humidity - the water vapor content of the atmoshpere.
The change in tension on the spring rotates a shaft that moves the indicator arm located on the front side of the device to show changes in atmoshperic humidity.
Statistics
Place: 154 out of 262 Avg (all users): 5.1682 Avg (commenters): 5.6250 Avg (participants): 5.0263 Avg (non-participants): 5.3208 Views since voting: 1278 Votes: 220 Comments: 9 Favorites: 0
Dang those hygometer scratches. They always ruin my shots as well, but you still scored 3 10s. The real question is: why do you have a hygrometer in the middle of the Arizona?
Everything is fine with about 3/4 of the subject image....don't know what you experience with the bottom 1/4...maybe a lighting problem? not sure. the BG reads a bit grey here and you might have tried to use your own white balance for this. Like the gradation of the shadow.
Technical: Most all images submitted fit the challenge. Exposure composition focus lighting all good.
Personal: My lack of knowledge of how a hygrometer works, and having never seen one before for comparison, means I have absolutely no emotional attachment to this image- it doesn't compel me.