In the jewelry industry, light performance is the description of how well a diamond stone returns the light to the viewer. These light properties described in light performance are brilliance, fire, and scintillation.

Brilliance

Brilliance is how we perceive the diamonds brightness. Normally, brilliance is not just the simple return of the light to the eyes of the beholder coming from the stones external and internal facets.

Brilliance is also more than just the scintillation, the availabilities of light sources and the contrasts. Included here would be the fluctuating variables of an imperfect human perception.

For some, brilliance is the most important feature to consider a diamonds beauty. This is because once brilliance is compromised, the diamonds fire and scintillation are both reduced, too.

Steep diamonds should be set in such a way that the light can enter in the pavilion and is reflected back out to the table (the stones top-most facet). Leakages are when a window effect is produced and the diamond can be seen through like plain glass.

Scintillation

The idea of scintillation had been thought of as alternating flashes of contrasting dark and brightness produced by facets, caused in turn by the viewers movement, the diamond or the illuminating source.

For some experts, defining and measuring scintillation cannot be done accurately, claiming that observations are always personal assessments.

Others would define it as a contrast for brilliant white or fiery colored sparkles that appear brighter to the human eye. Sparkly things always catch and attract attention.

One expert defines two kinds of scintillation. Static scintillation is the amount and the placement of darkness in a diamond seen [face-up view] in a jewelry store environment from a distance of 16 inches. Dynamic scintillation is the sparkle effect [one sees] when [any one of the] diamond, the light or the observer moves.

Generally, scintillation is the total effect when small flashes of light are seen when the diamond, the light source or the viewer is moved. Consequently, a diamond that is cut and polished that gives off a high level of this quality is considered high in light performance.

There is a common assumption that diamonds with additional facets are more scintillating. (Strangely though, some customers likes better the bolder, blocky scintillation of the Old Mine cuts.)

Fire

The so-called fire in a diamond is its ability to disperse white light into its component colors. These are the spectral colors which are produced when the diamond disperses back the light like an expensive prism.

These flashes of color are more intense and more attractive, though.

However, maximum brilliance and maximum fire cannot be observed at the same time, with the same view and at the same point. Brilliance is best seen in well-lighted areas and fire appears better in a point-lit room.

Whichever quality attracts you to diamond jewelry brilliance, scintillation, or fire you certainly are one of those men and woman who had fallen to the magic charms of a very beautiful-looking stone.

Since most organisms in this existence compete for the nourishment no matter how simple or complex the setting and situation are. There are times when plants themselves have to struggle in order to meet their own nutritional needs. This is where biodynamic techniques come in the picture as one of its facets includes weed control.

The management of weeds is actually the botanical component of pest control. It focuses on ceasing weed development before it reaches a specific point of growth that can result into maturity. Mature weeds can pose as harmful threats to domesticated plants and livestock via chemical and physical means. Weed maturation is not only the target of biodynamic methods as spreading and increase in population are also given ample time and consideration.

Organic is the name of the game when it comes to biodynamic principles. There are numerous combined methods that are commonly tapped on. Drip irrigation is the use of rubber hoses and similar devices in order to deploy water directly to the roots of plants. This act will limit the access of weed to water.

Manpower is very important in maintaining the optimum condition of plants. Weed control can also be triggered via manual labor. In this case workers are called on to pull weeds at specific times during the cultivating process. Tractors are common machineries that provide for mechanical tilling of weeds around crops during scheduled points of the growing process.

Ploughing is another form of tilling but this time the soil is involved. This can either be intercultural or summer ploughing. Deep summers are the highlight of summer ploughing. This ploughing variety also aids in pest removal and killing. The aim of the whole ploughing method is to till the soil and uproot the weeds leading to their elimination and eradication.

Plants can also be utilized to kill their own species that are causing havoc on the cultivation development. The method used in this scenario is called crop rotation. The rotation of crops is done in order to provide a time for plants that can kill weeds to take the battlefield. Examples of such plants are hemp and Mucuna pruriens. A weed mat or artificial mulch in the form of fibrous cloth or bark can also be placed on the top portion of the soil to avoid weed growth on the surface.

Biodynamic gardening and farming is not only about promoting positive aspects of agriculture. It is also made to outlast all sorts of destructive environmental elements that are constantly present no matter how big or small they are.