There is yet another property this dye possesses. It reflects light from sunlight especially in the infrared (heat) part of the spectrum. It is about 40% higher in reflectivity than most blue colors. This could prove to be ideal for paints used on cars, roofs, and other applications where keeping cool is desirable.
This will help in reducing the amount of energy consumption in cooling the vehicles as lesser air conditioning wil be required because it will reflect away much of the heat from the falling light. Because the paint is reflecting much of the energy, it tends to last longer as it is not broken down by the absorbed energy.
The compound was discovered by chance in the laboratory when a student heated a sample of manganese oxide (which is black) to 2,000 degree F. When it came out of the oven, it had been transformed into a bright blue color.
Subsequent analysis showed the compound had a trigonal bipyramidal structure—the shape of two pyramids pointing in opposite directions and joined at a triangular base. The central manganese atom is surrounded by five oxygen atoms. But other compounds—yttrium oxide and indium oxide—are required to stabilize the blue crystals.
Another application wil be paint the roof tops with this dye and save much energy.
Situated at about 2000 feet above sea level, Hazaribagh is a thickly forested region in the heart of the Damodar river valley. Ancient rock art sites have been discovered here,like the famous Isko site in Hazaribagh town. The forms and motifs of prehistoric art of ancient tribes like Khurmi, Ganju, Santhals and Oraons who live here. While entire tribal villages have elaborately painted houses,two varieties are outstanding: Khovar and Sohrai paintings.
Much like the bridal chambers of Mithila, Khovar paintings have fertility symbols celebrating union and propagation. Bird motifs,especially the parrots and peacocks,are popular,as are fruit bearing trees. They are mostly made in the wedding season,which extends from January to May.
Sohrai is observed during November to December celebrating the harvesting. Cattle are cleaned and worshiped ,as are agricultural implements,like the plough. Sohrai paintings characteristically have a male god, Pashupati (popularly known as Lord Shiva), the lord of animals shown standing on the back of a bull.
Though tribal khovar and sohrai paintings have not had the market exposure that Madhubani paintings have had,the region has enormous craft energy waiting to be tapped.
With the intense activity to industrialize the country, the selfish entrepreneurs are venturing into the areas which have remained unaffected and immune to the fast pace of industrialization. Although for a country to become economically self sufficient, it is necessary to exploit the natural resources but given the present structure of economy, only a few are benefiting from all this at the cost of mindlessly destroying the nature and create problems for so many people who depend upon the nature for the lives. These people, whom we call tribal, live in complete harmony with the nature using only whatever is absolutely necessary. Many tribal societies which were on the periphery of towns have been influenced by the ever expanding demon of expansion in cities. The places which were uninhabited have become populated and the expansion is widening its circle relentlessly.
But still there are tribal people which remain immune to the influence of city life despite being in the proximity of the cities. They have resisted the contact with city life and live in their own world preserving their simple and close to mother nature based culture. One such community is called Warlis. It is the name of the largest tribe found on the northern outskirts of Mumbai, in Western India. Warli Art was first discovered in the early seventies. While there are no records of the exact origins of this art, its roots may be traced to as early as the 10th century A.D. Warli is the vivid expression of daily and social events of the Warli tribe of Maharashtra, used by them to embellish the walls of village houses. This was the only means of transmitting folklore to a populace not acquainted with the written word. This art form is simple in comparison to the vibrant paintings of Madhubani.
Women are mainly engaged in the creation of these paintings. These paintings do not depict mythological characters or images of deities, but depict social life. Images of human beings and animals, along with scenes from daily life are created in a loose rhythmic pattern. These tribal paintings of Maharashtra are traditionally done in the homes of the Warlis. Painted white on mud walls, they are pretty close to pre-historic cave paintings in execution and usually depict scenes of human figures engaged in activities like hunting, dancing, sowing and harvesting.
Stylistically, they can be recognized by the fact that they are painted on an austere mud base using one color, white, with occasional dots in red and yellow. This colour is obtained from grounding rice into white powder. This sobriety is offset by the ebullience of their content. These themes are highly repetitive and symbolic. Many of the Warli paintings that represent Palghat, the marriage god, often include a horse used by the bride and groom. The painting is sacred and without it, the marriage cannot take place. These paintings also serve social and religious aspirations of the local people. It is believed that these paintings invoke powers of the Gods.
In Warli paintings it is rare to see a straight line. A series of dots and dashes make one line. The artists have recently started to draw straight lines in their paintings. These days, even men have taken to painting and they are often done on paper incorporating traditional decorative Warli motifs with modern elements such as the bicycle, etc. Warli paintings on paper have become very popular and are now sold all over India. Today, small paintings are done on cloth and paper but they look best on the walls or in the form of huge murals that bring out the vast and magical world of the Warlis. For the Warlis, tradition is still adhered to but at the same time new ideas have been allowed to seep in which helps them face new challenges from the market.
These paintings resemble the cave paintings in that these are very close to nature and deal with common elements like animals, birds, marriages ceremonies and crops. These are simply beautiful because they are faithful attempts to represent the three dimensional world to 2 dimensional plane. The details are not required to be painted. It is from the contours and our human perception that we relate it to the real world.
These paintings have become very popular and its artists have been awarded for their work. One such painter is Jivya Soma Mhase who has been awarded Padmashree for his work.