MAGNETIC; MAGNETICAL a.
the hypothetical fluid whose existence was formerly assumed in the explanations of the phenomena of magnetism. -- Magnetic iron, or Magnetic iron ore. (Min.) Same as Magnetite. -- Magnetic needle, a slender bar of steel, magnetized and suspended at its center on a sharp-pointed pivot, or by a delicate fiber, so that…
MATHEMATICS n.
Geometry, including Trigonometry and Conic Sections. 3. Analysis, in which letters are used, including Algebra, Analytical Geometry, and Calculus. Each of these divisions is divided into pure or abstract, which considers magnitude or quantity abstractly, without relation to matter; and mixed or applied, which treats of…
MECHANICAL a.
ical philosophy, the principles of mechanics applied to the inverstigation of physical phenomena. -- Mechanical powers, certain simple instruments, such as the lever and its modifications (the wheel and axle and the pulley), the inclined plane with its modifications (the screw and the wedge), which convert a small for…