An excavator is an excavator is an excavator ... or not?

“Excavators are heavy equipment consisting of a boom (backhoe), bucket and cab on a rotating platform (known as a House). The House sits atop an undercarriage with tracks or wheels. All movement and functions of the excavator are accomplished through the use of hydraulic fluid, be it with Rams or Motors. Their design is a natural progression from the steam shovel...“

»»» Source: http://en.wikipedia.org/wiki/Excavator



Excavator (Source Wikimedia)