Издательство: | Книга по требованию |
Дата выхода: | июль 2011 |
ISBN: | 978-6-1312-2960-2 |
Объём: | 72 страниц |
Масса: | 129 г |
Размеры(В x Ш x Т), см: | 23 x 16 x 1 |
High Quality Content by WIKIPEDIA articles! In geometry, a spring is a surface in the shape of a coiled tube, generated by sweeping a circle about the path of a helix. Note that the previous definition uses a vertical circular cross section. This is not entirely accurate as the tube becomes increasingly distorted as the Torsion increases (ratio of the speed P , and the incline of the tube). An alternative would be to have a circular cross section in the plane perpendicular to the helix curve. This would be closer to the shape of a physical spring. The mathematics would be much more complicated. The torus can be viewed as a a special case of the spring obtained when the helix degenerates to a circle. In mathematics, a spiral is a curve which emanates from a central point, getting progressively farther away as it revolves around the point. A "spiral" and a "helix" are both technically spirals even though they each represent a different object.
Данное издание не является оригинальным. Книга печатается по технологии принт-он-деманд после получения заказа.