I was up in my parents town this past weekend briefly. As I was driving down a road which ran parallel to some train tracks, I noticed the passing train was carrying dozens of massive propellers. Each of these propellers were larger than a single train flatbed car! They are the kind used in those giant windmills out in West Texas to generate power. I quickly whipped out my phone and snapped this little pic of the massive blades. I just found this interesting.