When the Wall Came Down: Reactions to German UnificationHarold James, Marla Stone Routledge, 1885 - 351 strani When the Wall Came Down provides a wide-ranging compendium of responses in Germany and other countries to the events of 1989-90, and includes essays by Henry Kissinger, Vaclav Havel, Ralf Dahrendorf and Timothy Garton Ash. |
Druge izdaje - Prikaži vse
When the Wall Came Down: Reactions to German Unification Harold James,Marla Stone Omejen predogled - 2014 |
When the Wall Came Down: Reactions to German Unification Harold James,Marla Stone Omejen predogled - 1992 |
When the Wall Came Down: Reactions to German Unification Harold James,Marla Stone Omejen predogled - 2014 |
Pogosti izrazi in povedi
alluvial alluvions amalgam amount auriferous banks bed-rock blast blocks bottom bucket Butte County California Cañon cement cent channel claim Coast Ranges construction cost Creek cross drifts cubic feet cubic yards deposits discharge district ditch estimated Eureka Lake feet deep feet long feet per mile feet per second feet wide flume French Corral gold gold-washing grade Grange granite gravel head height Hill Hurdy-gurdy hydraulic mining inches deep inches in diameter inches of water iron La Grange length lower main sluice material Milton miner's inches miners mountain Nevada County North Bloomfield nozzle PELTON WHEEL pipe placed Placer County plank pounds powder precious metal pressure box quantity quicksilver Report reservoir riffles River rivets rocks sand shaft side Sierra Nevada sills slope Smartsville South stone streams TABLE thick timber tion top gravel Total tunnel undercurrents Valley velocity washed wheel width yield Yuba
Priljubljeni odlomki
Stran 126 - ... is equal to that which a heavy body would acquire in falling through a space equal to the depth of the opening below the surface of the fluid, and is expressed as follows : * The experiments were made by the author.
Stran 118 - ... would suffer, nor can it be conceived how a total destruction of the structure could occur. The dam might settle and its usefulness be temporarily impaired, but the only effect that could result in the event of a breach would be a return to the condition of affairs at present existing. As the waters are already charged to their fullest extent, no larger quantity of debris could be transported to a greater distance in a single flood. The report of Lieut.CoL GH Mendell to the Secretary of War (1882)...
Stran 136 - At proper intervals waste-gates should be arranged so as to discharge the water, when necessary, without risk of damage to the ditch. In regions of heavy snow these waste-ways should be provided at intervals not greater than one-half a mile.
Stran 105 - The stream feeding the reservoir has a maximum flow during great freshets of 5,000 to 7,000 cubic feet of water per second. The existence of other reservoirs higher up the stream adds to the danger from great floods, and therefore the Bowman dams have been designed to withstand not only freshets in the canons, but also any additional influx of water caused by the breaking of the upper dams.
Stran 45 - There is no doubt but that gold, silver, quicksilver, copper, lead, sulphur and coal mines, are to be found all over California, and it is equally doubtful whether, under their present owners, they will ever be worked.
Stran 163 - ... of an inch between the inside of the collar and the outside of the pipe : b is the lead, which is run in and then calked tight from both sides ; c is a nipple of No. 9 iron, 6 inches in width, riveted on one end of each pipe by means of six 3/g-inch rivets.
Stran 73 - ... diffused throughout the detritus. Whilst working this claim a large hole in the bedrock twenty-five feet deep was bottomed. The hole was filled with gravel, but no pay was obtained. The pay stratum was found to be on a level with and a continuation of the pay stratum of the rest of the claim. On the other hand, at the Chesnau and French Hill Claims, whenever these hollows are found, a large yield of gold is invariably obtained. The experience of miners in the gold-fields of Victoria has led to...
Stran 137 - General Observations. Ditches in California, with carrying capacities as large as eighty cubic feet per second, have been built, and are now in successful operation, with grades of from sixteen to twenty feet per mile. In a mountainous country, where steep grades can be generally obtained by a slight increase in the length of the canal, and where the cost of excavation is large, a great saving can be effected by using the...
Stran 263 - ... cannot be avoided, the amount lost depending on the character of the gravel washed, the quantity of water used, the grade, length, and condition of the sluices, and on the number of days run. The use of a long line of sluices, kept in good order, and the employment of undercurrents, tend to diminish it. The aggregate amount of quicksilver lost at the La Grange hydraulic company's mines...
Stran 112 - The fall of some of the principal streams serving as outlets to the mines is in places 50 and even 75 feet to the mile. A rise of 20 feet more or less in a narrow bed with such a fall is sufficient to move material with great effect.