A lever is a simple machine consisting of a beam or rigid rod pivoted at a fixed hinge, or fulcrum capable of move or rotate on a point on itself. Lever vector illustration.
A lever is a simple machine consisting of a beam or rigid rod pivoted at a fixed hinge, or fulcrum capable of move or rotate on a point on itself. Lever vector illustration.
A lever is a simple machine consisting of a beam or rigid rod pivoted at a fixed hinge, or fulcrum capable of move or rotate on a point on itself. Lever vector illustration.
A rock heated by the solar power of the sun radiates natural heat outward and melts the snow around it creating a zone of snow free space, the sun generates heat the stone stores it.
ceiling pendant rectangular daylight lamps in the office