Technology

                           Child Labour Child labour  refers to the exploitation of children through any form of work that deprives children of their childhood, interferes with their ability to attend regular school, and is mentally, physically, socially and morally harmful. Such exploitation is prohibited by legislation worldwide, although these laws do not consider all work by children as child labour; exceptions include work by child artists, family duties, supervised training, and some forms of child work practiced by  Amish  children, as well as  by indigenous children  in the Americas. Child labour has existed to varying extents throughout history. During the 19th and early 20th centuries, many children aged 5–14 from poorer families worked in Western nations and their colonies alike. These children mainly worked in agr...

                               PHYSICS Physics  is the  natural science  that studies  matter , [a]  its  fundamental constituents , its  motion  and behavior through  space and time , and the related entities of  energy  and  force . Physics is one of the most fundamental  scientific  disciplines, and its main goal is to understand how the  universe  behaves. Physics is one of the oldest  academic disciplines  and, through its inclusion of  astronomy , perhaps  the  oldest. Over much of the past two millennia, physics,  chemistry ,  biology , and certain branches of  mathematics  were a part of  natural philosophy , but during the  Scientific Revolution  in the 17th century these natural sciences ...

                            TECHNOLOGY Technology  ("science of craft", from  Greek   τέχνη ,  techne , "art, skill, cunning of hand"; and  -λογία ,  -logia [2] ) is the sum of any  techniques ,  skills ,  methods , and  processes  used in the production of  goods  or  services  or in the accomplishment of objectives, such as  scientific investigation . Technology can be the  knowledge  of techniques, processes, and the like, or it can be embedded in  machines  to allow for operation without detailed knowledge of their workings.  Systems  (e.g. machines) applying technology by taking an  input , changing it according to the system's use, and then producing an  outcome  are referred to as  technology systems  or  technological systems . The simplest form of technology is the de...