How surveillance cameras work | #MEREHAN

How surveillance cameras work

The principle of the work of surveillance cameras is based on capturing a video of a place, and then through the central cameras to which they are connected, sending footage to a screen that displays what the cameras are shooting, and unlike traditional television broadcasting, CCTV transm

Information about the types of building materials | #MEREHAN

Information about the types of building materials

Bricks are usually made of clay, and they have been used since ancient times in many structures, such as: the Roman canals and the Great Wall of China. The Sumerians are the first to make bricks. The bricks are also used recently in construction because it is considered weather- and fire-r

How to insulate surfaces from water | #MEREHAN

How to insulate surfaces from water

Preparation of the concrete surface before starting waterproofing; This is done by filling cracks and expansion joints with polyurethane.

Building stone properties | #MEREHAN

Building stone properties

Building stones are a form of construction that is used in the construction of buildings. Building stones vary; We find basalt, granite, limestone or sandstone and many others, and each type is suitable for different uses and is extracted from huge hard rocks from quarries, and these stone

rock types | #MEREHAN

rock types

Subducted igneous rocks: They form through the slow crystallization of magma, either several kilometers below the Earth's surface in the form of large, irregular plutons, or near the surface in fissures and fractures such as shallow, simple subductions in neo-cuts or sills.