Erm, people label it as an engineering discipline because it uses some of the same principles of system design, use of modules and reuse that other engineering disciplines share...
Engineers solve problems. Understanding physics is a means to solving some problems. That's it.
"The application of scientific and mathematical principles to practical ends such as the design, manufacture, and operation of efficient and economical structures, machines, processes, and systems." http://www.thefreedictionary.com/engineering
Engineers solve problems. Understanding physics is a means to solving some problems. That's it.
"The application of scientific and mathematical principles to practical ends such as the design, manufacture, and operation of efficient and economical structures, machines, processes, and systems." http://www.thefreedictionary.com/engineering