which is the complex machine in this whole universe Share with your friends Share 0 Hardik answered this the human body is yhe most complex machine in the whole universe 0 View Full Answer Utkersh Trehan answered this Human brain is the most complex machine in the whole universe. 2 Yuvaraj Singh answered this If you are knowing so why are you asking?? 1 Ms.aishwarya Pandey answered this Huge airliners are incredibly complex 0 Shreya Pandey answered this human brain 1 Shubhangee Shinde answered this Human brain 1 Sukhdev Kudale answered this complex machine is made by joining two or more simple machines it's structure is complicated 0