Scientists engineer human spinal cord implants to make paralyzed mice walk again
A team of researchers from Tel Aviv University's Sagol Center for Regenerative Biotechnology has successfully engineered 3D human spinal cord tissues and implanted them in a lab mouse with long-term…
TRANSFORMATION OF PROJECTIONS
Introduction Projection: Projection is defined as an Image or drawing of the object made on a plane. The lines form the object to the Plane are called projectors. Methods of…
Isometric Drawing using AutoCAD
In Computer Aided Engineering Graphics for isometric projections following commands are used other than evoking software, opening file, saving file and giving print command. A 2D isometric drawing is a…
Principle of Isometric Projection
The isometric projection can be visualized is by considering a view of a cube with one of the solid diagonals perpendicular to the vertical plane and the three axes equally…
ISOMETRIC PROJECTIONS
In engineering drawing, orthographic projection of a solid is best way of projecting the details of an object when a solid is resting in its simple position. As the front…
Classification of solids
Polyhedron A polyhedron is a solid bounded by planes called faces, which meet in straight lines called edges. A regular polyhedron has all the faces equal and regular as shown…
Projections of Solids
Introduction Any object having definite length, width and height is called a solid. In engineering drawing, solids are often represented by two or more orthographic views, i.e., FV, TV or…
Solved Problems
1. An equilateral triangular lamina of 25 mm side lies with one of its edges on HP such that the surface of the lamina is inclined to HP at 60º. The…
PROJECTIONS OF PLANES & SOLIDS
Projection of Planes Introduction A plane is a two-dimensional geometrical entity. It has length and width but no thickness. For practical purposes, a flat face of an object may be…
Solved Problems
1. Draw the projections of a 75 mm long straight line, in the following positions: i. Parallel to both the H.P. and the V.P. and 25 mm from each. ii.…
