Standard rigid threaded conduit fittings can be used with I.M.C. Electrical metallic tubing is not threaded, and must be connected to junction boxes and the like with conduit connectors that secure to the tubing by means of a set screw or collet and nut; then the connectors have integrated shoulders and threads that secure to the box with a nut.
The  Earth  is a planet. It is a spherical-shaped mass of matter in time and space. The  world  is the specific set of conditions prevailing upon the face of the planet Earth at a specific point in Biblical time.he old world was the first generation of the heaven and the Earth (Genesis 1:1). The heavens and Earth  which are now  are the second generation of the heavens and the Earth. It is the same planet Earth but different worlds upon the face of the same planet.
The foremost difference between a continent and an island is the size. Continents can span a huge amount of land mass that can include countries inside that particular land mass. Continents can also be separated by countries with respect to physical and political borders.slands might also have a culture that is entirely different from the continent or might be ascribed to the continentâs governance and culture if the said island is part of the continent or a specific countryâs territory.