Water6 4; doi: Climate change and urbanization are converging to challenge city drainage infrastructure due to their adverse impacts on precipitation extremes and the environment of urban areas. Sustainable drainage systems have gained growing public interest in recent years, as a result of its positive effects on water quality and quantity issues and additional recreational amenities perceived in the urban landscape.
Lawrence THE HANDLE, which varies in length according to the height of its user, and in some cases is made by that user to his or her specifications, is like most of the other parts of the tool in that it has a name and thus a character of its own.
I call it the snath, as do most of us in the UK, though variations include the snathe, the snaithe, the snead, and the sned.
ADVOCATS FOR POPULATION CONTTROL. Population control is also increasingly being featured in many environmental documentaries and films. An example is The Planet -documentary, which describes the ongoing rising human population, its effects on the planet, and the necessity of population control. Tom died about , but of him came many sons, and one, Jack, who helped in the War of Of Jack and his wife, Violet, was born a mighty family, splendidly named: Harlow and Ira, Cloë, Lucinda, Maria, and Othello! Hindi Short Story “Jese ko Tesa”, “जैसे को तैसा” Hindi Laghu Katha for Class 9, Class 10 and Class Hindi Short Story “Lalchi Kutta”, “लालची कुत्ता” Hindi Laghu Katha for .
Onto the snath are attached two hand grips, adjusted for the height of the user. On the bottom of the snath is a small hole, a rubberized protector, and a metal D-ring with two hex sockets.
Into this little assemblage slides the tang of the blade. This thin crescent of steel is the fulcrum of the whole tool. From the genus blade fans out a number of ever-evolving species, each seeking out and colonizing new niches.
I also have a couple of ditch blades which, despite the name, are not used for mowing ditches in particular, but are all-purpose cutting tools that can manage anything from fine grass to tousled brambles and a bush blade, which is as thick as a billhook and can take down small trees.
These are the big mammals you can see and hear. Beneath and around them scuttle any number of harder-to-spot competitors for the summer grass, all finding their place in the ecosystem of the tool. None of them, of course, is any use at all unless it is kept sharp, really sharp: You need to take a couple of stones out into the field with you and use them regularly—every five minutes or so—to keep the edge honed.
And you need to know how to use your peening anvil, and when. When the edge of your blade thickens with overuse and oversharpening, you need to draw the edge out by peening it—cold-forging the blade with hammer and small anvil.
Probably you never master it, just as you never really master anything. That lack of mastery, and the promise of one day reaching it, is part of the complex beauty of the tool. Etymology can be interesting.
Scythe, originally rendered sithe, is an Old English word, indicating that the tool has been in use in these islands for at least a thousand years.
But archaeology pushes that date much further out; Roman scythes have been found with blades nearly two meters long. Basic, curved cutting tools for use on grass date back at least ten thousand years, to the dawn of agriculture and thus to the dawn of civilizations. Like the tool, the word, too, has older origins.
The Proto-Indo-European root of scythe is the word sek, meaning to cut, or to divide. Sek is also the root word of sickle, saw, schism, sex, and science. Some books do that, from time to time, and this is beginning to shape up as one of them.
By his own admission, his arguments are not new. But the clarity with which he makes them, and his refusal to obfuscate, are refreshing.
I seem to be at a point in my life where I am open to hearing this again. Here are the four premises with which he begins the book: Technological progress is carrying us to inevitable disaster.
Only the collapse of modern technological civilization can avert disaster.
What is needed is a new revolutionary movement, dedicated to the elimination of technological society. I have a tendency toward sentimentality around these issues, so I appreciate his discipline.
There are two reasons for this. Firstly, if I do end up agreeing with him—and with other such critics I have been exploring recently, such as Jacques Ellul and D. Lewis and Ivan Illich—I am going to have to change my life in quite profound ways.
It has a broadband connection and all sorts of fancy capabilities I have never tried or wanted to use.
I mainly use it for typing. You might think this makes me a hypocrite, and you might be right, but there is a more interesting observation you could make.ADVOCATS FOR POPULATION CONTTROL. Population control is also increasingly being featured in many environmental documentaries and films.
An example is The Planet -documentary, which describes the ongoing rising human population, its effects on the planet, and the necessity of population control. Introduction Though perhaps best known throughout the world for his science fiction, Isaac Asimov was also regarded as one of the great explainers of science.
Roots of the conservation corps concept. In , the Scottish essayist Thomas Carlyle wrote that unemployed men should be organized into regiments to drain bogs and work in wilderness areas for the betterment of society.
Centre pour l’Environnement et le Développement, Friends of the Earth International, Cameroon Author: Robinson Djeukam with the collaboration of J.-F.
Importance of Forest Conservation in India Category: Indian Geography On April 17, By Vishal Sharma Forests not only provide wood but they directly control floods, drought, soil erosion etc. Conservation of Forests is of vital importance for India.
Conservation Of Wild Life forests Protection and conservation of forests and wildlife are essential to maintain the earth’s health and environment. The earth is the only known living planet and it is because of its special environment and ecology which are .