Etymology Case Essay

The word horticulture is simulate after agriculture, and comes from the Latin hortus garden and cultra shade, from cultus, the everlasting(a) passive per centumiciple of the verb col I cultivate.Hortus is cognate with the indigene English word yard (in the meaning of land associated with a building) and alike the borrowed word garden.Understanding horticultureHorticulture is a term that evokes images of plants, gardening, and people working in the horticultural industries. For the public, and policy makers, the term is not completely understood nor is its r all(prenominal) on military man activities been fully appreciated. Horticulture encounters widely on human activities, often than than its popular taste as merely gardening would indicate. It trains to be recognized as a matrix of inter-relating atomic number 18as that everywherelap, with complex inter-relationships. A wider and more accurate explanation provide communicate gistively the importance of plants, th eir cultivation and their practice for sustainable human existence. The popular gardening activity virtuoso fails to convey the important role that horticulture plays in the lives of individuals, communities and human societies as a whole. Describing its impact on the physiological, psychological and social activities of people is key to expanding our understand however the cultivation of a garden, orchard, or nursery and the cultivation of flowers, fruits, vegetables, or ornamental plants as tumesce as the information and art of cultivating such(prenominal)(prenominal) plants will suffice to sketch the outline of a short description.expand the traditional understanding of horticulture beyond garden cultivation. Turkey (1962) gave an over beguile of those involved in the field of horticulture, in stating that there are those who are concerned with the science or biological side, those concerned with the business side and finally those who are concerned with the home or art si de, which enjoy plants simply for the gratification they get from them. Primarily it is an art, tho it is intimately connected with science at every point. Relf highlighted the fact that, in limiting the definition of horticulture severely limits an understanding of what horticulture means in terms of human well-being. Relf provided a comprehensive definition of horticulture as the art and science of plants resulting in the development of minds and emotions of individuals, the enrichment and health of communities, and the integrating of the garden in the breadth of modern civilization.In addition, Half acre and Barden (1979), Janick and Goldman (2003). besides extended the scope of horticulture when they agreed that the origins of horticulture are intimately associated with the history of kindness and that horticulture espousees all life and bridges the gap between science, art and human beings. This broader vision of horticulture embraces plants, including the multitude of pro ducts and activities (oxygen, food, medicine, clothing, shelter, celebration or remembrance) essential for human survival and people, whose active and passive involvement with the garden brings about benefits to them as individuals and to the communities and cultures they encompassGreenhouse effectA representation of the exchanges of energy between the kickoff (the Sun), the humankinds airfoil, the Earths atmosphere, and the ultimate sink outmost space. The superpower of the atmosphere to capture and recycle energy take a breatherted by the Earth rear is the defining characteristic of the babys room effect. The greenhouse effect is a process by which thermal radiation from a wandering(a) surface is absor have intercourse by atmospheric greenhouse gases, and is re-radiated in all directions. Since part of this re-radiation is back towards the surface and the lower atmosphere, it results in an elevation of the average surface temperature above what it would be in the absence of the gases.Solar radiation at the frequencies of visible light largely passes through the atmosphere to warm the planetary surface, which then emits this energy at the lower frequencies of infrared thermal radiation. unseeable radiation is absorbed by greenhouse gases, which in turn re-radiate much of the energy to the surface and lower atmosphere. The mechanism is named after the effect of solar radiation passing through glass and warming a greenhouse, but the way it retains waken is fundamentally different as a greenhouse works by reducing airflow, isolating the warm air internal the structure so that heat is not lost by convection.If an paragon thermally conductive blackbody was the same distance from the Sun as the Earth is, it would have a temperature of about 5.3 C. However, since the Earth reflects about 30% of the incoming sunlight, the planets effective temperature (the temperature of a blackbody that would emit the same amount of radiation) is about 18 C,78 about 33C below the actual surface temperature of about 14 C. The mechanism that produces this variation between the actual surface temperature and the effective temperature is due to the atmosphere and is cognise as the greenhouse effect. Earths natural greenhouse effect makes life as we know it possible. However, human activities, primarily the burning of fogy fuels and clearing of forests, have intensified the natural greenhouse effect, causing globular warming.MODERN ELECTRONICSHome applianceNumerous appliances are found in the kitchen. Home appliances are electrical/mechanical machines which accomplish some star sign functions, such as cooking or cleaning. Home appliances can be classified into* Major appliances, or White goods* Small appliances, or brown goods* Consumer electronics, or Shiny goodsThis division is also noticeable in the service of process area of these kinds of products. Brown goods commonly require high technical association and skills (which get more complex w ith time, such as going from a soldering iron to a hot-air soldering station), plot of ground white goods need more practical skills and brute force to manipulate the devices and heavy tools inevitable to repair them. electric bindingIn the US the electric mantlepiece is a blanket with an integrated electrical heating device commonly placed above the top bed sheet. In the UK and Commonwealth, electric blanket commonly interests to an electric mattress pad, which is placed below the bottom bed sheet. Electric blankets usually have a control unit which adjusts the amount of heat the blanket produces. Blankets for larger sized beds often have separate controls for each side of the bed. The electric blanket may be used to pre-heat the bed before use or to keep the occupant warm while in bed. Modern electric blankets have carbon fibre wires. These blankets usually work on 24 volts instead of the 110/240 volts. Therefore, they are denote as being a safer, more efficient and more w ell-fixed alternative.Zhangjiajie, China The Bailong Elevator is the worlds largest exterior elevator. At over 1,000 feet tall, this elevator looms high midway up a cliff commanding a valley far below. Moreover, the elevator is mostly glass, affording passengers a dizzying view to the depths below. There is some concern, however, about the elevators long-term impact on the surrounding natural environment.Yangtze, China The Three Gorges Dam has bony fire from people around the world for its role in tiptop water levels and displacing millions of Chinese residents in the area. As a work of design, however, it is unparalleled. It will be the largest hydroelectric dam in the world, 600 feet high and holding 1.4 trillion cubic feet of water behind 100 million cubic feet of concrete. This engineering wonder will also eventually provide as much as 10% of Chinas vast power needs.engineeringBy the mid 20th century, humans had achieved a mastery of applied science sufficient to leave th e atmosphere of the Earth for the first time and search space. Technology is the making, modification, usage, and knowledge of tools, machines, techniques, crafts, systems, methods of organization, in order to solve a problem, mend a preexisting solution to a problem, achieve a purpose or perform a specific function. It can also refer to the collection of such tools, machinery, modifications, arrangements and procedures. Technologies significantly affect human as well as other animal species ability to control and adapt to their natural environments.The word engineering comes from Greek (technologa) from (tchn), meaning art, skill, craft, and - meaning oeuvre of-.1 The term can either be applied generally or to specific areas examples include construction technology, medical technology, and information technology. The human species use of technology began with the conversion of natural resources into simple tools. The prehistorical discovery of the ability to control fire incr eased the available sources of food and the invention of the round helped humans in travelling in and controlling their environment. Recent scientific developments, including the printing press, the telephone, and the Internet, have lessened physical barriers to communication and allowed humans to act freely on a global scale. However, not all technology has been used for peaceful purposes the development of weapons of ever-increasing destructive power has progressed throughout history, from clubs to thermonuclear weapons.