{"version":"1.0","type":"link","title":"Slide rule - Newikis","description":"A slide rule is a hand-operated mechanical calculator consisting of slidable rulers for conducting mathematical operations such as multiplication, division, exponents, roots, logarithms, and trigonometry. It is one of the simplest analog computers.","provider_name":"Newikis","provider_url":"https://newikis.com","cache_age":86400,"thumbnail_url":"https://thumb.wikimedia.org/wikipedia/commons/thumb/6/6e/Sliderule.PickettN902T.agr.jpg/1200px-Sliderule.PickettN902T.agr.jpg","thumbnail_width":1200,"thumbnail_height":674}