Well's natural philosophy : for the use of schools, academies and privte students, introducing the latest results of scientific discovery and research ; arranged with special reference to the practical application of physical science to the arts and the experiences of everyday life ; with three hundred and seventy-five engravings (1873)
Wells, David A · New York : Ivison, Blakeman, Taylor and Co. · leaf 111
oves when the horse exerts a strengthBufQcicnt to overcome the friction and resistance of the atmosphere; but ingoing up a hill, where the road rises one foot in twenty, the horse, besidethese impediments, is obliged to exert an extra force in the proportion of oneto twenty, or, in other words, he… … How do we es-timate the in-clination ofroads f IIow oughtroads to beconstructed ? THE. ELEMENTS Or MACHINERY. 107 to overcome the friction in drawing a heavy load up the steep incline, wemust add additional force to overcome the gravity, which acts parallel withthe inchned plane of the road, and…
Physics · Science · Technology
Internet Archive · University of Toronto Libraries · Public Domain Mark 1.0. Free to use for anything.
