An Atmospheric Railway is a railway so called in consequence of the motive power being derived from the pressure of the atmosphere, or from compressed air. The idea of thus obtaining motion was first suggested by the French engineer Papin, about 1700. In 1810, and again in 1827, a Mr. Medhurst published a scheme for 'propelling carriages through a close-fitting air-tight tunnel by forcing in air behind them' and in 1825 a similar project was patented by a Mr. Yallance of Brighton. About 1835 a Mr. H. Pinkus, an American residing in England, patented a pneumatic railway. The carriages were to travel on an open line of rails, along which a cast-iron tube of between 3 and 4 feet diameter was to be laid, having a longitudinal slit from 1 to 2 inches wide and closed by a flexible valve along its upper side, through which a connection could be formed between the leading carriage and a piston working within the tube. This method was improved by Messrs. Clegg and Samuda, who in 1840 tried some experiments on a portion of the West London Railway with sufficient success to induce the government to advance a loan to the Dublin and KingstownRailway Company, for the construction of a pneumatic line from Kingstown to Dalkey. It was opened for passenger traffic at the end of 1843, and was worked for many months. The London and Croydon Company subsequently obtained powers for laying down an atmospheric railway by the side of their other line from London to Croydon, and in experimental trips in 1845 a speed of 30 miles an hour was obtained with sixteen carriages, and of 70 miles an hour with six carriages. But during the intense heat of the summer of 1846 the iron tube frequently became so hot as to melt the composition which sealed the valve, and the line had to be worked by locomotives. The mechanical difficulty of commanding a sufficient amount of rarefaction led to the abandonment of the system for railway purposes. It was revived, however, for the conveyance of letters and
arcels in towns by means of tubes of moderate diameter laid beneath the streets, but not proceeded with. Within offices, however, atmospheric railways or rather pneumatic despatch systems are used notably within the supermarket chain Sainsburys where cash from tills is put into a cylindrical container which is closed and inserted into a pressurised pipe system for conveyance to the cash office. Research Atmospheric Railway
The block-system is a system of working the traffic on railways according to which the line is divided into sections of three or four miles, with a signal and telegraphic connection at the end of each section. The essential principle of the system is that no train is allowed to enter upon any one section until the section is signalled wholly clear, so that between two successive trains there is not merely an interval of time, but also an interval of space. Research Block-System
Boot Popping is a form of theft in which a gang pose as car windscreen cleaners at traffic lights, and while distracting the car driver by cleaning the windscreen, another gang member opens the car boot and empties it of valuables. The theft works on the principle that in most modern cars when the car doors are unlocked, so is the boot, and can be opened by pressing the boot button. Research Boot Popping
The Canadian Pacific Railway is a line of railway which traverses British North America from the St Lawrence to the Pacific. One of the conditions upon which the province of British Columbia in 1871 entered the Dominion of Canada was the construction of such a railway. Since that time more than one act had been passed empowering different companies to go on with the work. Eventually, however, it was completed, according to arrangement with the Canadian government, by a syndicate of London, Paris, and American capitalists, being opened for general traffic in June, 1886. Commencing at Montreal, the line goes on to Ottawa, thence round the north of the Great Lakes to Port Arthur at the head of Lake Superior, and thence to Winnipeg, Manitoba, thence to Stephen in the Rocky Mountains, then across British Columbia to Vancouver on the Pacific. Vancouver, now a thriving city, owes its existence to this railway. The line was of great importance not only as a means of communication between Europe and Eastern Asia and Australasia, but also as a military highway binding together the great masses of the British Empire during the late 19th century. Research Canadian Pacific Railway
When the newly formed United States was drawing up its constitution, disagreements occurred within the parties involved. Compromises were formed at the Convention of 1787, which was mainly divided as to whether, in the new government, one State's influence should be equal to that of any other State, or should be based on population. The plans for a Constitution submitted by Edmund Randolph, of Virginia, and William Paterson, of New Jersey, were diametrically opposed in this respect. The former favoured representation according to population in both Houses; the latter an equal vote for each State and only one House. Johnson, of Connecticut, proposed as a compromise, two Houses, an equal representation in the Senate and a proportionate one in the House. Ellsworth formally moved that this be adopted, and thus the first compromise was effected after considerable debate.
The second compromise was in regard to the regulation of commerce by Congress. It was proposed to tax both exports and imports at the discretion of Congress. C C Pinckney declared that South Carolina would not enter the Union if exports were to be taxed, since nearly the whole of her wealth lay in one article of export, rice. Hence it was decided, on August the 6th, that 'no tax or duty shall be laid by the Legislature on articles exported from any State', and on these terms the Federal control over commerce was conceded.
Gibbons vs Ogden was an important case in the US Supreme Court. Aaron Ogden, having obtained by assignment the exclusive right of navigation of all waters within the jurisdiction of the State of New York, granted by that State to Livingston and Fulton for thirty years, beginning in 1808, filed a bill in the Court of Chancery of New York for an injunction against one Gibbons, of New Jersey, who possessed two steamboats running between New York and Elizabethtown, New Jersey. The injunction was granted. Gibbons appealed to the Supreme Court in 1824. The court gave judgment for the appellant, it being deemed that the granting of exclusive navigation of waters within the State of New York by that State's Legislature, extending to coastwise traffic with another State, was repugnant to the clause of the Constitution of the United States authorizing Congress to regulate commerce. Research Gibbons Vs Ogden
Mountains are often classified according to their mode of formation: Fold
mountains; Block mountains; Residual mountains; Volcanic mountains.
High mountain chains such as the Himalayas, Andes, Alps, and Rockies are known as new fold mountain systems. The term 'fold' is a reference to the way in which such mountains have been formed. Throughout millions of years slow movements of the earth's crust have caused these
mountains to be raised. The movements which have resulted in mountain buildings were not, however, vertical uplifts. They were primarily horizontal movements, the effect of which was to cause the crust of the earth to 'wrinkle', in a similar way to which a tablecloth wrinkles if it is pushed along the table. The arched or upraised parts of the folds are known as anticlines and the troughs as synclines. These folds can vary greatly in size. Mountain building is undoubtedly due to some deep-seated cause. For a long period the most simple explanation was that folding was entirely due to the cooling and contraction of the earth, so that the crust, already cold and shrunken, had to wrinkle to fit itself to the still cooling and contracting 'core'. One of the objections advanced against this theory is that the amount of shrinking necessary to account for the Himalayas, Alps, etc., seems to be greater than the mere contraction of the earth would allow. While the theory of contraction cannot be completely rejected, serious consideration must be given to the more recent explanations of mountain building. For instance, Wegener suggests that mountain building may be due to the 'wrinkles' produced by the drifting of a continental mass, e.g. that the Alps were formed by the northward drift of the African continent towards the more stable blocks of Central Europe. As the African mass drifted slowly northward the zone between it and the European mass became narrower, and the land was raised into high ridges or folds. The raising of the Alps was accompanied by the formation of the deep trough which contains the Mediterranean Sea. The same hypothesis would account for the building of the Himalayas and the depression of the Indo-Gangetic trough by the northward drift of the Deccan mass.
During the physical history of the earth, mountain building appears to have proceeded more actively at some periods than others. Fold mountains are, therefore, not all of the same age. The newest group of fold mountains include the Himalayas, Alps, Rockies, and Andes. During an earlier period of folding (the Carboniferous) the Pennines, Appalachians, the Cape Ranges of South Africa, and the Dividing Range of Australia were uplifted. A still earlier period of folding accounted for the original mountains of Scotland and Norway, of which the present mountains are merely the worn down stumps. The older fold mountains, which have been subjected to the forces of denudation (such as the weather, rivers, glaciers, etc.) for long geological periods, are much lower and less rugged than the newer fold mountains. The term 'new fold' is applied to the mountain ranges which have been folded most recently, but they seem very old when their age in actual years is considered because they were uplifted many millions of years before historic time. Mountain building is a very long and slow process; and in the case of certain mountain chains, such as the Andes and the mountains of Japan, is probably still proceeding.
The new fold mountain systems of the world, except in such instances as the simple low folds of the Weald (South-east England), usually consist of high parallel ranges, the average height being well over 3000 metres. In the Himalayas' the highest peak rises to 8840 metres; in the Andes 7000 metres; in the Rockies 6000 metres; in the Alps to 4600 metres. Vast though these heights appear, the wrinkles of the earth's crust are only slight. The highest mountain in the world (MountEverest) is about five miles high, so that on a globe of 40 cm, diameter it would protrude only 2.5 mm. Most of the active volcanoes are found in the neighbourhood of fold mountains, where the crust of the earth has been fractured during the process of folding. All around the PacificOcean there are many active and extinct volcanoes, as in New Zealand, the East Indies, Japan, and North, Central, and South America. Another belt of active volcanoes is associated with the fold mountains of the West Indies. The mountains of this type are characterised by ruggedness of relief in contrast to the smooth and rounded contours of mountain areas which have been subjected to weathering agents for long periods of time. This is obvious if pictures of the Alps and the Scottish Highlands are compared.
Mountains are effective climatic barriers, and the climates of regions on either side of a high mountain range are very different. For example, the coast lands of British Columbia have an equable climate and a heavy rainfall, while the lands to the east of the Rockies have an extreme climate and light rainfall. Again, the climate of the mountainous areas differs from that of the adjacent lowlands. The great mountain systems of the world are mainly important for their minerals, and, in the temperate zone, for their lumber. In the plateau regions of some mountain systems agriculture has been made possible by irrigation, and above the forests in temperate areas there are valuable alpine pastures. The swift streams of mountains are frequently sources of hydro-electric power, especially in countries which have no coal, such as Switzerland and Norway. In North America, the Western Cordillera provides gold, copper, lead, and silver, especially in the states of Nevada and Montana. The Andes provide tin and copper (Bolivia), gold and platinum
(Colombia), and silver (Peru). The Highlands of East Australia are important for copper and gold. The lumbering industry is specially important in British Columbia, Washington, and Oregon (soft woods), the Central American mountainous lands (hard woods), the Himalayan slopes (teak and sal), and the Scandinavian mountains (soft woods).
To provide food for the mining communities in inaccessible mountain areas, agriculture has been developed. There are numerous irrigation schemes in operation in most of the mountain states of the USA, e.g. at SaltLake City in Utah. Similarly, the Andean states, e.g. Bolivia, grow small quantities of cereals in the plateau areas. Mountain pastures have been utilised most extensively for cattle rearing in Switzerland and Scandinavia. The vast central plateau of Asia is, owing to difficulty of access and climatic extremes, so isolated from other regions that very little development of any kind, on modern lines, has taken place. High mountain ranges are also barriers to communication, and so tend to separate peoples. Traffic across mountains is limited to the passes, which are often so high as to be snowbound in winter. Such ranges as the Alps, Andes, etc. can only be crossed with great difficulty or by expensive tunnelling.
It sometimes happens that movement of the earth's crust occurs along cracks or faults. Where such movement leaves a block of higher land standing between two areas of lower land, the highland is known as a 'Block Mountain' or horst. The Vosges and Black Forest Mountains are examples of such formations These mountains are usually very steep-sided, and often the summit levels are roughly the same.
When an area of highland remains standing above the general level after rivers and other natural agents have lowered the surface of the surrounding area, the name residual mountain is used. Sometimes such highlands are called 'mountains of denudation'. This term can usually be applied to the mountain ridges associated with 'dissected plateaux'. Included in this class are the mountain ridges of the Highlands of Scotland, the Sierras of Central Spain, and the Mesas and Buttes of the western plateaulands of the United States.
Mountains may be formed by volcanic material piled up around a crater, such mountains are popularly known as volcanoes. Research Mountains
In town planning, the theory behind the concept of the neighbourhood is that, so as to foster the life of a community, it is necessary to break down the totality of a town's population into groups which are small enough to acquire a sense of identification with a locality. What is important is that a town should be broken down for many purposes into a series of, as it were, inward-looking villages within the area of the town. Only for special purposes, - such as work or entertainment, should the inhabitants of a neighbourhood unit need to go outside their locality. It should have its own group of shops catering for the essential requirements of life, its social centre (the Neighbourhood Centre), its own secondary school and a number of tributary primary schools, its own clinic, banks and post office, and recreational space of its own.
The Neighbourhood Unit is the area of a community of people, small enough to acquire a sense of local identification, but large enough to support a secondary school. This requires at least 5000 people. The pattern of the neighbourhood is determined by convenience of access from home to school and community centre, and by the policy of making major traffic routes go round it and not through it. Many of the British post-war New Towns around London, such as Crawley New Town and Stevenage, were planned as a series of neighbourhood units. The major road system and belts of open space divided the neighbourhoods from one another. Certain areas were set aside for industry and open space. All the neighbourhoods converged upon the town centre, which contained more elaborate facilities than the neighbourhood centres. The only objections to the neighbourhood principle, as it was applied in the New Towns of the 1950's, were that they took up so much space that they were costly to live in, and that people were so wedded to separate family living that any sense of community was difficult to build up. It was possible to speak of 'new town blues', the sense of isolation which arises when the bright lights of the town centre are so distant that the effort involved in travelling centrewards is too great, and people therefore prefer to sit at home in front of their television sets.
A later stage in the evolution of the neighbourhood principle has been the attempt to provide an environment for social groups rather than for single families. This was a reaction against the individualism which had tended to run riot. The appropriate type of building for the social group was though to be the tall slab-block of family flats. This was economical of space and building costs, since the slab-block is the shape that gives the greatest floor space in relation to space for circulation or movement. There was thought to be every likelihood of building up the spirit of group-living when the flats were let to families who hitherto had lived in the congested streets of obsolete houses which this new housing was designed to replace. There was, it was felt, a sense of security engendered by being surrounded by already familiar faces, and a degree of kinship from having shared the same experiences before coming to live in the slab-block, however encasing people in concrete boxes is unnatural and causes all sorts of mental disturbances which has led to these tower blocks becoming very unpopular, indeed they are now considered one of the great architectural blunders of all time, fostering crime, deprivation and isolation rather than kinship.
In the USA, after 1875 the regulation of the liquor traffic in Ohio became a leading question in State politics. In 1882 the Republicans adopted the so-called Pond Law for the taxation of liquor selling. It was declared unconstitutional by the Supreme Court of the State. It required of dealers to take out a high license and also to give a bond. Research Pond Law
A railway is a road made by placing on the ground on a specially prepared track, continuous parallel lines of iron or steel rails, on which carriages with flanged wheels are run with little friction and consequently at high velocity. The necessity for railways originated in the requirements of the coal-traffic of Northumberlandshire, where the first railways were constructed. In 1676 near Newcastle the coals were conveyed from the mines to the banks of the river by laying rails of timber straight and parallel; and bulky carts were made, with four rollers fitting those rails, whereby the carriage was made so easy that one horse could draw four or five chaldrons of coal.
The first railway (railroad) constructed in America was projected by Gridley Bryant in 1825, and extended from Quincy, Massachusetts, to the nearest tide-water. It was four miles long. The second railway extended from mines near Mauch Chunk, Pennsylvania to the Lehigh River. It was begun in 1827. Stephenson's locomotive came into use in 1829, and by 1830 there were twenty-three
miles of railway completed in the United States.
Abbreviations
Research Atmospheric Railway
