Each of us carries on his hand a time machine, which, inexorably moves forward. We can twist the clock hands backward, but something will still remain there, behind.
You can’t touch the time with your hands, it’s considered so, but if you touch your old rusty gear, which looks like an enlarged, watch mechanism, you can feel potholes where metal, from time to time, began to lose its density.
Rust, as inexorable time, does not spare even such a fundamental piece of metal.
Gear teeth, we see only a part of them. This is similar to our past, and we cannot see the future.
I found such a plot in the backyard of an electrical substation.
Photos taken with a Sony Cyber-shot DSC-HX300 camera
I edited a photo in the program PhotoDirector, which I also installed on my smartphone.