13 photos
"La Pascaline", calculating machine constructed        
by Blaise Pascal, and technical drawings.
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"La Pascaline", calculating machine constructed by Blaise Pascal, and te...

"La Pascaline", calculating machine constructed        
by Blaise Pascal, and technical drawings.
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"La Pascaline", calculating machine constructed by Blaise Pascal, and te...

The Puy de Dome experiment by which Pascal
proved that air pressure depends on height:
"De la pesanteur de la masse d'air" - on the weight
of air",653.
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The Puy de Dome experiment by which Pascal proved that air pressure depends on...

Convent of Port Royal de Paris, courtyard.             
Blaise Pascal's sister entered the convent in 1662.    
He often visited her and was attracted by the          
life of austerity of the Jansenists.
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Convent of Port Royal de Paris, courtyard. Blaise Pascal's sister e...

"Les Granges" (the barns) near the Abbey               
of Port Royal Des Champs where B. Pascal               
wrote most of his religious works.                     
On the table his books and some of his                 
writings of the time.
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"Les Granges" (the barns) near the Abbey of Port Royal Des Champs...

Various instruments (17th), made for Blaise Pascal's   
experiments.
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Various instruments (17th), made for Blaise Pascal's experiments.

Blaise Pascal's desk with facsimile of his             
"Apologie de la religion chretienne"                   
(Defense of the Christian Faith),                      
one of his most important writings.
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Blaise Pascal's desk with facsimile of his "Apologie de la religion...

Courtyard of "Les Granges" (the barns) of Port Royal   
Des Champs, with a well for which Pascal invented      
and constructed the windlass.
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Courtyard of "Les Granges" (the barns) of Port Royal Des Champs, with a well...

Chapel of Port Royal des Champs where Pascal lived     
through the mystic experience of the 40 steps in 1654  
which he recorded in "le Memorial".
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Chapel of Port Royal des Champs where Pascal lived through the mystic exper...

Blaise Pascal's silver castigation belt,               
his stone cross, the manuscript of "le Memorial",      
and a burning candle.
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Blaise Pascal's silver castigation belt, his stone cross, the man...

Blaise Pascal's silver castigation belt,               
his stone cross, and the manuscript of                 
"le Memorial".
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Blaise Pascal's silver castigation belt, his stone cross, and the...

Courtyard of the Convent of Port Royal de Paris.
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Courtyard of the Convent of Port Royal de Paris.