Archives July 2013

In 1954 in Corpus Christi, Texas, Horton Glass Company employees, Dee Horton and Lew Hewitt, had just finished replacing yet another customer's wind- damaged glass door. Powerful, gusting South Texas winds wreaked havoc with traditional glass, push-pull doors, and ensured a steady demand for such repairs. Worse, the unpredictable winds could cause a door to blow open and shut in someone's face just as they were trying to walk through it. So the duo decided to invent a better door system. Initially, the system used a simple, electrically activated sliding door that opened only when a mat actuator in front of the door was stepped upon. Not only did this solve the problem of wind-blown accidents, it also enabled visitors or customers to leave, and delivery persons to enter a shop or business with their hands full. Having installed a test unit, for free, at the city's utilities department, sales more...

It is a custom incur school that class 11th students bid farewell to the 12th class. They make the parting attractive. They arrange a parting feast. This year, the 20th February, was my last day at school. The school bell rang as usual. The 11th class boys were sad. After the first period the teachers and the students of both classes met in the school hall. The Principal and the teachers sat in the chairs. We, the students, took our seats on the desks. The function was started by the students of eleventh class. They read poems. They sang songs. They made speeches suited to the occasion. Every part of the programme was about the outgoing class. Then our class incharge rose up. He made a speech which moved our hearts. He told us that we would soon enter the field of life. Our care-free life would end. Soon after more...

It is very difficult to answer the question who a really cultured man is. But there are various qualities of head and  heart which distinguish a cultured man. Pt. Nehru had once said that a cultured person has the capacity to understand the point of view of other people and also to make himself understood by others. Nehru's idea of cultured man is very apt and accurate. A cultured man always keeps a friendly approach to life and the various problems associated with life. He is above all prejudices and never indulges himself in trifles. He has wonderful tact to turn any traffic. He has wonderful fact to turn any occasion of friction and quarrel into one of co-  operation and friendship. His broad mindedness adds to his quality. He is kind and considerate and remains alert all the time. For the weak and the suffering, he keeps immense sympathy more...

Boys and girls gather before the examination hall before the starting of examination. The students come to examination centre by different modes of transport. Many come on their bicycles. In no time there is a large gathering. Boys and girls stand here and there. Some move about talking with one another. They will feel sad when the doors of the hall will be opened. Their parents encourage them. They tell them how they should write their answers to questions. Their friends advise them. They tell them their own experiences. They also tell them some examination tips. Students think about the nature of questions. They form small groups on the benches, in the verandah or on the green ground. They guess the question papers. They answer them among themselves. A few boys and girls are seen alone reading books as a last minute effort. All are in a hurry to meet more...

At the end of the eighteenth century, the Italian physicist Alessandro Volta invented the battery. By placing a pair of electrodes—one of zinc, the other of copper—in a solution that conducts electricity (sulfuric acid), he developed the principle that is still in use in today's dry-cell batteries. More than half a century later there had been many new versions of the battery, but there were still problems with the original Voltaic design. The solution that conducts the electricity, usually some kind of acid, was too dangerous to touch and could spill out if the battery was tipped over. Nor were the electrodes very steady and were in danger of falling out if the battery was shaken too much. Furthermore, the batteries themselves were far too heavy to use around the house. It was not until about 1866 that the French engineer Georges Ledanche (1839-1882) resolved these problems. Filling a porous more...

Introduction. The words 'Computer' and 'Internet' send a wave of thrill and excitement through our body. Both these are the greatest  inventions of the century. Our life without the use of computer and interne appear to be dull and dreary. They add a lot to our progress and modernization. Young boys and girls have become crazy to enrol themselves for computer-internet courses. In a very short spell of time many colleges and institutions have emerged for computer courses. These types of courses j    are job-oriented so the students are quite safe and sure about their future.  Importance of Computer. Computer has transformed our day to day working facilities. Wherever you go in offices, schools, colleges and malls, etc. the computer is there to welcome you. All the banks, offices and institutions have computerized records. Even in all govt. and private schools the attendance of teachers and students is sent more...

Sometime a question arises in everybody's mind that why we should worry about the conservation about our so called old, out-dated buildings, their remains, cultural heritage and other similar things. Several people do not like even to have links with the past. They do not like to worry about future generation of the country. They give argues that past is dead and future is uncertain. This however is not right. Heritage is very important. It is the reflection of the identity of the people of a nation. One identifies herself or himself with hers or his heritage, which gives a sense of pride. Our cultural heritage is a mirror of our national unity. Seeing a dance show we can say that this is Indian dance, we can see a play and can say immediately the life style of the Indian society is being staged. Some of our traditions like-saying Good-morning more...

In the early periods of civilizations, large parts of our country were covered with forests. The increase of the population of our country has led to the shrinking of forest area. The forests which purify air have been cut down and new cities and industries have been established in their place. The cutting of the forests causes what is called "The Green House Effect". It results in the heating of the earth's surface or global warming which has serious consequences for life on this planet. As a result coming generations are likely to suffer from incurable diseases. And what is extreme, even the existence of human kind might be in danger. Afforestation is the only measure that can be taken to avoid these disastrous havocs. We know that Chipko Movements was started by Shri  Sunderlal Bahuguna to stop indiscriminate felling of tress in the Himalayas. But an all-out effort is more...

"Herminie had a simply ingenious idea. For women's corn fort she had cut in two the traditional corset." Cadolle website Before bras came along, corsets were the garment of choice for women to provide support and create a shapely silhouette of their figures. However, the whalebone reinforcement in corsets made them an uncomfortable and restricting item to wear. When Frenchwoman Herminie Cadolle (1845-1926) cut the corset in half in 1889, she created the very first bra. In the late nineteenth century, Cadolle moved to Buenos Aires in Argentina, where she opened a lingerie shop. There she had the idea of separating the corset into two parts. She unveiled her new design, which used shoulder straps for support and was called the corselet gorge, at the Great Universal Exhibition of 1889 in Paris. (Another feat of engineering—the Eiffel Tower—was also constructed for this event.) Cadolle's designs were among the first to more...

"[Red Clay Creek] demonstrated for the first time the fully integrated automatic factory" Eugene Ferguson, historian of technology In 1782, Oliver Evans (1755-1819), along with his brother Joseph, opened a village store in Maryland. There, dealing with the local milling community, Evans discovered how cumbersome the milling process was. The stone or log mills were quite primitive, requiring hours of hard labor, and the flour produced by them was often contaminated with dirt from the floor. Evans suspected that there was a better way to make flour, and he began to design an automatic flour mill. The site of Evans's flour mill was in Red Clay Creek, where an old stone mill had been built in 1742. By 1785 the automatic flour mill was in operation. It consisted of a bucket elevator, a belt conveyor, a horizontal conveyor, and S mechanical hopper-boy, which was a rake used for spreading and more...