FREE BOOKS

Author's List




PREV.   NEXT  
|<   17   18   19   20   21   22   23   24   25   26   27   28   29   30   31   32   33   34   35   36   37   38   39   40   41  
42   43   44   45   46   47   48   49   50   51   52   53   54   55   56   57   58   59   60   61   62   63   64   65   66   >>   >|  
ed the singular property of causing distant objects to appear nearer the observer. This Dutchman was Hans or John Lippershey, who, as has been clearly proved by the late Professor Moll of Utrecht,[8] was in the possession of a telescope made by himself so early as 2d October 1608. A few days afterwards, the truth of this report was confirmed by a letter which Galileo received from James Badorere at Paris, and he immediately applied himself to the consideration of the subject. On the first night after his return to Padua, he found, in the doctrines of refraction, the principle which he sought. He placed at the ends of a leaden tube two spectacle glasses, both of which were plain on one side, while one of them had its other side convex, and the other its second side concave, and having applied his eye to the concave glass, he saw objects pretty large and pretty near him. This little instrument, which magnified only three times, he carried in triumph to Venice, where it excited the most intense interest. Crowds of the principal citizens flocked to his house to see the magical toy; and after nearly a month had been spent in gratifying this epidemical curiosity, Galileo was led to understand from Leonardo Deodati, the Doge of Venice, that the senate would be highly gratified by obtaining possession of so extraordinary an instrument. Galileo instantly complied with the wishes of his patrons, who acknowledged the present by a mandate conferring upon him for life his professorship at Padua, and generously raising his salary from 520 to 1000 florins.[9] [8] On the First Invention of Telescopes.--_Journ. R. Instit._, 1831., vol i., p. 496. [9] Viviani _Vita del' Galileo_, p. 69. Although we cannot doubt the veracity of Galileo, when he affirms that he had never seen any of the Dutch telescopes, yet it is expressly stated by Fuccarius, that one of these instruments had at this time been brought to Florence; and Sirturus assures us that a Frenchman, calling himself a partner of the Dutch inventor, came to Milan in May 1609, and offered a telescope to the Count de Fuentes. In a letter from Lorenzo Pignoria to Paolo Gualdo, dated from Padua, on the 31st of August 1609, it is expressly said, that, at the re-election of the professors, Galileo had contrived to obtain 1000 florins for life, which was alleged to be on account of an eye-glass like the one which was sent from Flanders to the Cardinal Borghese. In a m
PREV.   NEXT  
|<   17   18   19   20   21   22   23   24   25   26   27   28   29   30   31   32   33   34   35   36   37   38   39   40   41  
42   43   44   45   46   47   48   49   50   51   52   53   54   55   56   57   58   59   60   61   62   63   64   65   66   >>   >|  



Top keywords:

Galileo

 
concave
 

letter

 
Venice
 

instrument

 

expressly

 
pretty
 

applied

 

telescope

 

florins


possession

 
objects
 

gratified

 

obtaining

 

wishes

 

highly

 

patrons

 
extraordinary
 

acknowledged

 

instantly


complied

 

Viviani

 

raising

 

Telescopes

 

Invention

 
salary
 
Although
 

Instit

 
conferring
 

mandate


professorship
 

generously

 

present

 

Gualdo

 
August
 

Pignoria

 

offered

 

Fuentes

 
Lorenzo
 

election


Flanders

 
Cardinal
 

Borghese

 

account

 

professors

 
contrived
 

obtain

 
alleged
 

telescopes

 

stated