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Browsing named entities in a specific section of Harper's Encyclopedia of United States History (ed. Benson Lossing). Search the whole document.
Found 33 total hits in 20 results.
Germantown, Philadelphia County, Pennsylvania (Pennsylvania, United States) (search for this): entry rittenhouse-david
Rittenhouse, David 1732-1796
Astronomer; born in Roxboro, Pa., April 8, 1732; was of German descent.
His great-grandfather established at Germantown, in 1690, the first paper-mill in America.
Accidentally falling in with instruments and mathematical books of a deceased uncle while working on his father's farm, David had mastered Newton's Principia and independently discovered the methods of fluxions before he was nineteen years of age. He early became a skilful mechanic, and, at the age of twenty-three, planned and constructed an orrery, which was purchased by Princeton College.
He afterwards constructed a larger and more perfect one for the University of Pennsylvania.
In 1763 he was employed in determining the Mason and Dixon's line (q. v.), and afterwards fixed other State boundaries.
In 1769 the American Philo-
David Rittenhouse. sophical Society appointed him to observe the transit of Venus at Philadelphia.
He erected a temporary observatory for the purpose on the Wal
Pennsylvania (Pennsylvania, United States) (search for this): entry rittenhouse-david
Roxboro, Pa. (Pennsylvania, United States) (search for this): entry rittenhouse-david
Rittenhouse, David 1732-1796
Astronomer; born in Roxboro, Pa., April 8, 1732; was of German descent.
His great-grandfather established at Germantown, in 1690, the first paper-mill in America.
Accidentally falling in with instruments and mathematical books of a deceased uncle while working on his father's farm, David had mastered Newton's Principia and independently discovered the methods of fluxions before he was nineteen years of age. He early became a skilful mechanic, and, at the age of twenty-three, planned and constructed an orrery, which was purchased by Princeton College.
He afterwards constructed a larger and more perfect one for the University of Pennsylvania.
In 1763 he was employed in determining the Mason and Dixon's line (q. v.), and afterwards fixed other State boundaries.
In 1769 the American Philo-
David Rittenhouse. sophical Society appointed him to observe the transit of Venus at Philadelphia.
He erected a temporary observatory for the purpose on the Wal
United States (United States) (search for this): entry rittenhouse-david
Rittenhouse, David 1732-1796
Astronomer; born in Roxboro, Pa., April 8, 1732; was of German descent.
His great-grandfather established at Germantown, in 1690, the first paper-mill in America.
Accidentally falling in with instruments and mathematical books of a deceased uncle while working on his father's farm, David had mastered Newton's Principia and independently discovered the methods of fluxions before he was nineteen years of age. He early became a skilful mechanic, and, at the age of twenty-three, planned and constructed an orrery, which was purchased by Princeton College.
He afterwards constructed a larger and more perfect one for the University of Pennsylvania.
In 1763 he was employed in determining the Mason and Dixon's line (q. v.), and afterwards fixed other State boundaries.
In 1769 the American Philo-
David Rittenhouse. sophical Society appointed him to observe the transit of Venus at Philadelphia.
He erected a temporary observatory for the purpose on the Wa
Benjamin Franklin (search for this): entry rittenhouse-david
David Rittenhouse (search for this): entry rittenhouse-david
Rittenhouse, David 1732-1796
Astronomer; born in Roxboro, Pa., April 8, 1732; was of German descent.
His great-grandfather established at Germantown, in 1690, the first paper-mill in America.
Accidentally falling in with instruments and mathematical books of a deceased uncle while working on his father's farm, David had mas nia.
In 1763 he was employed in determining the Mason and Dixon's line (q. v.), and afterwards fixed other State boundaries.
In 1769 the American Philo-
David Rittenhouse. sophical Society appointed him to observe the transit of Venus at Philadelphia.
He erected a temporary observatory for the purpose on the Walnut Street front of the State-house.
It is said that the emotion of Rittenhouse was so great at the apparent contact at the time of the transit that he fainted.
In Philadelphia Rittenhouse continued his manufacture of clocks and mathematical instruments several years.
From 1777 to 1779 he was treasurer of Pennsylvania; in 1791 he succeeded Fr
John Thomas Newton (search for this): entry rittenhouse-david
Rittenhouse, David 1732-1796
Astronomer; born in Roxboro, Pa., April 8, 1732; was of German descent.
His great-grandfather established at Germantown, in 1690, the first paper-mill in America.
Accidentally falling in with instruments and mathematical books of a deceased uncle while working on his father's farm, David had mastered Newton's Principia and independently discovered the methods of fluxions before he was nineteen years of age. He early became a skilful mechanic, and, at the age of twenty-three, planned and constructed an orrery, which was purchased by Princeton College.
He afterwards constructed a larger and more perfect one for the University of Pennsylvania.
In 1763 he was employed in determining the Mason and Dixon's line (q. v.), and afterwards fixed other State boundaries.
In 1769 the American Philo-
David Rittenhouse. sophical Society appointed him to observe the transit of Venus at Philadelphia.
He erected a temporary observatory for the purpose on the Wal
Venus (search for this): entry rittenhouse-david
1792 AD (search for this): entry rittenhouse-david
1791 AD (search for this): entry rittenhouse-david