kennelly arthur - magnetism
kennelly arthur application of hyperbolic functions to electrical engineering problems
... characteristics of the double- wire system in Fig. 11 are 0-5 x io- 6 = 2-2 36 X IO- 3 . . hyp. per loop-km. (35) _ c = \/ r Jff,, = x/iO/ ' 5 X 1 0- = 4472 ohms per loop (36) Consequently, the attenuation-constant has the same value whether computed from ... ohms per km., and 5912 x 800 800 ~ = 0-2 114 X 1 0- 15 mho km.' ' - -& apos ;-4 KM FIG. 11. Diag...
Ngày tải lên: 04/06/2014, 12:30
kennelly arthur electricity in electro-therapeutics
... 12 ELECTRICITY. and magnetism will, therefore, not only enable the general public to detect elec- tro-therapeutic frauds, but will also tend to increase confidence in legitimate elec- tro-therapeutic applications, a ... the nature of electricity, let us con- sider a well-known electric source, as, for example, the dynamo-electric machine, such as is used for generating electric cur- rents...
Ngày tải lên: 04/06/2014, 12:30
Thung lũng khủng khiếp-Arthur Conan Doyle
... nhẫn cưới thì biến mất. - Anh ấy nói đúng đấy. - Barker lên tiếng - Ông vừa khai là chiếc nhẫn cưới đeo ở trong chiếc nhẫn có gắn ngọc. - Viên trung sỹ hỏi lại. - Thưa vâng. - Thế thì hung thủ đã ... không? - Thưa ông, tôi không biết. - Ông nghĩ thế nào, ông MacDonald? - Nó làm tôi nghĩ đến một hội kín. Cái dấu ở trên cánh tay kia cũng thế. - Tôi cũng n...
Ngày tải lên: 29/08/2013, 17:10
LUYỆN ĐỌC TIẾNG ANH QUA TÁC PHẨM VĂN HỌC-THE ADVENTURES OF SHERLOCK HOMES -ARTHUR CONAN DOYLE 15-3
... steps upon the stairs, and an elderly red-faced man with grizzled side-whiskers was ushered in. In his right hand he carried an old-fashioned carpet-bag, which he placed upon the table. ... concerning our prisoner. His name, it appeared, was Beppo, second name unknown. He was a well-known ne'er-do-well among the Italian colony. He had once been a skilful sculptor and had earned a...
Ngày tải lên: 18/10/2013, 01:15
LUYỆN ĐỌC TIẾNG ANH QUA TÁC PHẨM VĂN HỌC-THE ADVENTURE OF THE DYING DETECTIVE ARTHUR CONAN DOYLE (2)
... coarse-grained and greasy, with heavy, double-chin, and two sullen, menacing gray eyes which glared at me from under tufted and sandy brows. A high bald head had a small velvet smoking-cap ... cabman pulled up had an air of smug and demure respectability in its old-fashioned iron railings, its massive folding-door, and its shining brasswork. All was in keeping with a solemn butler ... c...
Ngày tải lên: 24/10/2013, 20:15