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                                              Basic  Drone with the control unit Agriculture Drone spraying over crop A drone is a pilotless aircraft which is also known as Unmanned Aerial Vehicle (UAV). The drone is a flying Robot that can be radio controlled from the ground or it can fly autonomously through embedded software-controlled flight plans. The ground control system works in conjunction with onboard   s ensors  and  GPS . Drones are being used in a wide range of civilian roles ranging from search and rescue,  surveillance  of water-bodies,  mining areas,  electric power lines, oil pipelines, forests fire, traffic monitoring, weather monitoring, and fire fighting.   In agriculture applications, these are being used for crop growth monitoring, spraying of liquid type insecti...

Picture 1 - Basic 3D printer for plastic work                                                                                                  Picture 2 -  Concrete structure laid by 3 D printer 3D printing has indeed brought a new revolution in the field of prototyping in auto-motive industry, toy and gaming industry, designing and making jewellery, fabrication of human organs and construction of buildings. 3D printing is not like any other printer for printing text, pictures/images on paper. 3D printing is a concept of depositing molten /fluid material as thin layer by layer which solidifies quickly. 3D printing is commonly used for rapid prototyping of toys, parts / sub-assemblies of automotive. A 3D printer can use any materia...