Monday, October 8, 2018

Wikipedia Trail: Control System to Led Zeppelin

The actual title of Led Zeppelin's fourth album (Wikimedia Commons)

Control Systems https://en.wikipedia.org/wiki/Control_system

I chose control systems for this Wikipedia trail because that is engineering course that I am taking this semester.  It is my attempt to get back into school mood after the long weekend. A control system regulates the operation of other components or systems.  Some examples include cruise control on an automobile, or a thermostat on a heat and air system.  Most of my class is focused on feedback loops.


A feedback loop is when the output returns to the input, which then influences the input.  So the feedback loop self-regulates.  There are two basic types of feedback loops, negative and positive.  Positive feedback is used to make audio systems.  An example of audio feedback system is rock music.


Rock music started in the 1950s, and originally was referred to as "rock and roll." Rock music's roots come from rhythm and blues.  Over time, it split into many different branches.  Some examples include punk, heavy metal, folk rock, and psychedelic rock.  Most rock songs have the verse chorus format with a 4/4 time signature. 


The mighty Led Zeppelin was a four member band from Britain.  The four members are Robert Plant (vocals), Jimmy Page (guitar), John Paul Jones (bass and keyboardist), and John Bonham (drums).  They made 8 albums from 1968 to 1980.  They disbanded after the passing of John Bonham.  They are one of my favorite bands of all time.  In my opinion their music is timeless, it never grows old.

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