Press enter after choosing selection

Locating A Fault In An Ocean Cable

Locating A Fault In An Ocean Cable image
Parent Issue
Day
24
Month
November
Year
1882
Copyright
Public Domain
OCR Text

The work of locating a break or flaw in the cable - a procesa seemingly so abstruse - is, with the present improved instrument3, comparatively quick and easy. Discarding technicalities, we may say briefly that the whoie electric potency of the cable when f u!ly charged is knowu, aud the same can be quickly ascertained of the two parts created by a break. A delicate machine adjusted to the nicest fractions diseloses the electric units or "ohms" in each part, and as the number of ohma to the mile is known, the miles dnd fractions of miles in both part8 can be found out at each end of the cable. In the case of a clean break the locating of it takes about fifteen minutes, lint a very angular break, or a flaw, makes perturbations of the measurement which it now and then takes some hours to rectify. The usual cause of breaks or flaws is attrition on rocks or sand, and sometime3 a break u very deep water indicates that, sea currents of considerable forcé prevail there, contrary to the genera! ly accepted theory that deepsea waters are always placid. Most of the fractures ïowever, take place in the shallows, and many of them are due to the dragfing anchor3 of the fisher craft. In .wo or three instances the cables have vidently been snapped by enraged or hungry flsh. - Cor. N. T. Evening Post. Covetousneas is a sort of mental ;luttony, feeding oa selüshness.

Article

Subjects
Old News
Ann Arbor Democrat