Autobiography of Sir George Biddell AiryAiry, George Biddell
Science
Autobiography of Sir George Biddell Airy
Airy, George Biddell
Airy, George Biddell, 1801-1892; Astronomers -- Great Britain -- Biography; Autobiographies; Royal Greenwich Observatory
year the Smith's Prizes were awarded to the 4th and 6th Wranglers.
Of private history: "On Apr. 29th Mrs Smith (my wife's mother) died at
Brampton.--From July 4th to Aug. 2nd I was in France (Auvergne and the
Vivarais) with my two eldest sons. Maclear travelled with us to
Paris.--On Dec. 23rd I went to Playford."--Antiquities and historical
questions connected with military movements had a very great
attraction for Airy. On his return from the expedition in France
above-mentioned, he engaged in considerable correspondence with
military authorities regarding points connected with the battle of
Toulouse. And in this year also he had much correspondence with the
Duke of Northumberland concerning his Map of the Roman Wall, and the
military points relating to the same.
1860
"In June Mr Main accepted the office of Radcliffe Observer at Oxford
(Mr Johnson having died) and resigned the First Assistancy at
Greenwich: in October Mr Stone was appointed First Assistant.--At an
adjourned Meeting of the Visitors on June 18th there were very heavy
discussions on Hansen's merits, and about the grant to him. Papers
were read from Sir J. Lubbock, Babbage, South, Whewell, and
me. Finally it was recommended to the Government to grant _£1000_ to
Hansen, which was paid to him.--In the Report to the Board of Visitors
the following remark occurs: 'The apparent existence of a discordance
between the results of Direct Observations and Reflection Observations
(after the application of corrections for flexure, founded upon
observations of the horizontal collimator wires) to an extent far
greater than can be explained by any disturbance of the direction of
gravity on the quicksilver by its distance from the vertical, or by
the attraction of neighbouring masses, perplexes me much.'--With
respect to the discordance of dips of the dipping-needles, which for
years past had been a source of great trouble and puzzle, the Report
states that 'The dipping-needles are still a source of anxiety. The
form which their anomalies appear to take is that of a special or
peculiar value of the dip given by each separate needle. With one of
the 9-inch needles, the result always differs about a quarter of a
degree from that of the others. I can see nothing in its mechanical
construction to explain this.--Reference is made to the spontaneous
currents through the wires of telegraph companies, which are
frequently violent and always occur at the times of magnetic storms,
and the Report continues 'It may be worth considering whether it would
ever be desirable to establish in two directions at right angles to
each other (for instance, along the Brighton Railway and along the
North Kent Railway) wires which would photographically register in the
Royal Observatory the currents that pass in these directions,
exhibiting their indications by photographic curves in close
juxtaposition with the registers of the magnetic elements.'--In
Public-domain text, read in full here on John Shaqi.
Reviews
Reviews
No reviews yet
Be the first to share your thoughts on this work.
Elsewhere in the archive
Join the Discussion
Join the discussion
Sign in to leave a comment or review.
Sign InorCreate an account