Account of pendulum experiments undertaken in the Harton Colliery, for the purpose of determining the mean density of the earth, by G. B. Airy

View transcription
                                established at the Royal Observatory, and in the
familiarity which we now possessed with telegraphic
applications. I perceived that the difficulty of comparing
the upper and lower clocks would be almost entirely
removed. The coal-mines of the Durham coalfield had been
marked much deeper, and the facility of access to
those mines would materially diminish the labour
of the experiment, while the intimate acquaintance
<s>[?]</s> with the geological character of the country possessed
by the coal-owners, and the general regularity of
the beds, would give great confidence <s>to</s> in the
ultimate calculations of the attraction of the mass of
matter principally affecting the experiment. After
a lapse of twenty-six years from the last
attempt in Cornwall I therefore seriously took up the
subject again, and proceeded personally to
examine the fitness of the coal-mines of Durham
for the experiment.
                            
Please login to transcribe

Manuscript details

Author
George Biddell Airy
Reference
PT/54/5
Series
PT
Date
1855
IIIF
Open IIIF manifest
(What's this?)
This is a link to the IIIF web URL for this item. You can drag and drop the IIIF image link into other compatible viewers

Cite as

Account of pendulum experiments undertaken in the Harton Colliery, for the purpose of determining the mean density of the earth, by G. B. Airy, 1855. From The Royal Society, PT/54/5

Copy

Comments

Please login to comment