from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A device for detecting and recording variations in the intensity and direction of magnetic fields.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A instrument for measuring changes in the direction and intensity of magnetic fields
from the GNU version of the Collaborative International Dictionary of English
- n. An automatic instrument for registering, by photography or otherwise, the states and variations of any of the terrestrial magnetic elements.
from The Century Dictionary and Cyclopedia
- n. A magnetometer arranged to give an automatic and continuous record of the changes in position of the magnet under the influence of the earth. This is accomplished by the reflection of a spot of light from a mirror attached to the magnet on to a drum of sensitized paper turned by clockwork.
- n. The record of a magnetometer; a magnetogram.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a scientific instrument that registers magnetic variations (especially variations of the earth's magnetic field)
Sorry, no etymologies found.
Detection of the magnetic field's signal could build the case for constructing a "coronal magnetograph," he said, which would be a more advanced version of the coronagraph that measures the magnetic properties of the corona.
Thus a steady temperature was maintained; a most desirable feature in a magnetograph house.
For the "absolute hut" there were only scrap materials available; the "magnetograph house," alone, had been brought complete.
Webb adjusting the instruments in the magnetograph house a calm noon in winter, Cape Denison
Bage, R., at the main base; work at the hut; the tide-gauge; transit house; food experiences; search for the dogs; with the Southern Sledging Party; return to the hut; on building a tent; snow-blindness; return to Aladdin's Cave; note left by, at Cathedral Grotto; return from the south; visit to the 'Aurora'; the relief expedition; winter work; wireless work; magnetograph records; the home journey; account of
Bage continued the magnetograph records for a further six months in 1913, observed term days, and took absolute observations.
Bage, who had been busy up till August 8 with his daily magnetograph records, ran short of bromide papers and now had to be contented with taking "quick runs" at intervals, especially when the aurora was active.
In connexion with the magnetograph work, Webb conducted regular, absolute observations throughout the year 1912.
At Kew (652 miles), the horizontal force magnetograph was moved by the earthquake at about 6h. 29m. 55s.
SUMI's "vector magnetograph" is tuned to study a pair of spectral lines: one from triply-ionized carbon (CIV) at 155 nanometers and a second from singly-ionized magnesium