FREE BOOKS

Author's List




PREV.   NEXT  
|<   205   206   207   208   209   210   211   212   213   214   215   216   217   218   219   220   221   222   223   224   225   226   227   228   229  
230   231   232   233   234   235   236   237   238   239   240   241   242   243   244   245   246   247   248   249   250   251   252   253   254   >>   >|  
les at the time of the eclipse amounted to about 38"; while that of Hansen's (ultimately adopted by Mr Hind for the calculation of the eclipse) did not exceed 3".'--With regard to Chronometers it is stated that 'By use of the Chronometer Oven, to which I have formerly alluded, we have been able to give great attention to the compensation. I have reason to think that we are producing a most beneficial effect on the manufacture and adjustment of chronometers in general.'--With regard to the Cape of Good Hope Observatory and Survey, the Admiralty enquire of me when the Survey work will be completed, and I enquire of Maclear 'How is the printing of your Survey Work?' In 1862 I began to press it strongly, and in 1863 very strongly.--I introduced a method (constantly pursued since that time at the Royal Observatory) for computing interpolations without changes of sign.--I had correspondence with Herschel and Faraday, on the possible effect of the Sun's radiant heat on the sea, as explaining the curve of diurnal magnetic inequality. (That diurnal inequality was inferred from the magnetic reductions 1848-1857, which were terminated in 1860.)--Regarding the proposal of hourly time-signals on the Start Point, I consulted telegraph engineers upon the practical points, and on Dec. 21st I proposed a formal scheme, in complete detail. (The matter has been repeatedly brought before the Admiralty, but has been uniformly rejected.)--I was engaged on the question of the bad ocular vision of two or three persons.--The British Association Meeting was held at Manchester: I was President of Section A. I gave a Lecture on the Eclipse of 1860 to an enormous attendance in the Free Trade Hall." The following record of the Lecture is extracted from Dr E.J. Routh's Obituary Notice of Airy written for the Proceedings of the Royal Society. "At the meeting of the British Association at Manchester in 1861, Mr Airy delivered a Lecture on the Solar Eclipse of 1860 to an assembly of perhaps 3000 persons. The writer remembers the great Free Trade Hall crowded to excess with an immense audience whose attention and interest, notwithstanding a weak voice, he was able to retain to the very end of the lecture....The charm of Professor Airy's lectures lay in the clearness of his explanations. The subjects also of his lectures were generally those to which his attention had been turned by other causes, so that he had much that was new to tell. His manner was sli
PREV.   NEXT  
|<   205   206   207   208   209   210   211   212   213   214   215   216   217   218   219   220   221   222   223   224   225   226   227   228   229  
230   231   232   233   234   235   236   237   238   239   240   241   242   243   244   245   246   247   248   249   250   251   252   253   254   >>   >|  



Top keywords:

Lecture

 

attention

 

Survey

 

strongly

 
Admiralty
 

effect

 

Observatory

 

inequality

 
magnetic
 

persons


diurnal
 
British
 

Eclipse

 

Association

 

Manchester

 

enquire

 

eclipse

 

lectures

 

regard

 

Meeting


Section
 

generally

 

subjects

 

turned

 

President

 

repeatedly

 
brought
 
matter
 

scheme

 
complete

detail

 

uniformly

 
rejected
 

vision

 

ocular

 
manner
 
engaged
 

question

 

explanations

 

lecture


writer

 

remembers

 

formal

 
assembly
 

crowded

 
excess
 

interest

 

notwithstanding

 

retain

 
immense