Elevators are primarily useful for vertical movement. Carrying loads of goods up the flights of stairs can be tedious work. But, with elevators, carrying tonnes of goods up multiple storeys becomes a matter of a few minutes. Besides, several people of varying physical capacities can go up a building within a few seconds using an elevator. Elevators in shopping malls, hospitals, offices, and houses make movement particularly easier and zero-effort for senior citizens, children, people with movement restrictions, and pregnant…

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