Surveillance
https://mdsstar.com Surveillance cameras are usually hidden from the public eye, while security cameras are easily visible inside places of business and other venues. Both of these systems serve a similar purpose ,

book
https://www.lavhq.com book The intellectual content in a physical book need not be a composition, nor even be called a book. Books can consist only of drawings, engravings or photographs, crossword puzzles or cut-out dolls. In a physical book, the pages can be left blank or can feature an abstract set of lines to support entries..

smartphone
https://www.iqtechy.com A smartphone were marketed primarily towards the enterprise market, attempting to bridge the functionality of standalone PDA devices with support for cellular telephony, but were limited by their bulky form, short battery life, slow analog cellular networks, and the immaturity of wireless data services. .

flower
https://www.crclothes.com A flower, Most flowering plants depend on animals, such as bees, moths, and butterflies, to transfer their pollen between different flowers, and have evolved to attract these pollinators by various strategies, including brightly colored, conspicuous petals, attractive scents, and the production of nectar, a food source for pollinators.

airplane
https://www.flylav.com/ An airplane The Wright brothers invented and flew the first airplane in 1903, recognized as "the first sustained and controlled heavier-than-air powered flight".They built on the works of George Cayley dating from 1799, when he set forth the successful passenger-carrying gliders)and the work of German pioneer of human aviation Otto Lilientha.