set construction

Many cameras have built in exposure meters, having light sensitive surfaces. A current flows in the meter depending on the amount of light falling on it. So, the photographer has to adjust a suitable set of aperture and exposure times for correct exposure. There is also another aspect cal..

Cement absorbs water on mixing to form a gelatinous mass. This sets to a hard mass and is very resistant to pressure. This process is called the setting of cement. This simple looking process involves a complicated set of reactions of hydration and hydrolysis, leading..

In surgery for setting broken or fractured bones. For making casts for statues, in dentistry, for surgical instruments, and toys etc. In making black board chalks, and statues. In construction industry..

Grammar may be roughly defined as the way a language manipulates and combines words (or groups of words) in order to form longer, meaningful units. For example, in English, the present form of the verb 'be' in the third person has two distinct forms, one (is) being used with a singular subject, an..

It is a white powder. When mixed with water (1/3 of its mass), it evolves heat and quickly sets to a hard porous mass within 5 to 15 minutes. During setting, a slight expansion (about 1%) in volume occurs so that it fills the mould completely and takes a sharp impression. The p..

Hydroelectric Power Plants - The electricity produced from flowing water is called Hydroelectric power. The world's first hydroelectric power plant was set up in 1882 in Wisconsin USA. It had a very small output, supplying power only for about 250 light bulbs. But from this small start th..

Graphical Method of Solution of a Linear Programming Problem - So far we have learnt how to construct a mathematical model for a linear programming problem. If we can find the values of the decision variables x 1 , x 2 , x 3 , ..... x n , which can optimise (maximize or minimize) the obje..

. These bands are called interference fringes. The solid arcs represent the crests and the dotted arcs represent the troughs in the above diagram. When these arcs overlap, the (.) dots represent the maximum intensity i.e., constructive interference, whereas the (x) crosses represent the m..

) The lasers are used for drilling tiny holes in diamonds for drawing fine wires. (iv) They are used in precision surveying. Because of its high intensity and exceptional directionality, the laser is an excellent tool for surveying. In order to be certain that a bridge or tunnel is being const..

Besides being useful, chemicals find use in artifacts as well. Ceramics, paints, varnishes, glass, cement are various other useful substances that contain various chemicals as their components. Construction industry is the major beneficiary of such substances. Of late, continuing research..