Word: seismographic
(lookup in dictionary)
(lookup stats)
Dates: during 1907-1907
Sort By: most recent first
(reverse)
...visiting committee of the division of Geology has provided the department with the funds necessary to erect a seismograph in the University Museum. A Bash-Omori seismograph with two 100 kilogram conical pendulums, one swung in the meridian and the other east and west, will shortly be placed on a suitable foundation in the basement of the Geological section. This type of instrument records earth vibrations on smoked paper carried on revolving drums operated by clockwork. One of the same general type which has been set up in the State Museum at Albany, New York, for more than a year...