David Rittenhouse

RittenhouseRittenhouse orrery
David Rittenhouse (April 8, 1732 – June 26, 1796) was an American astronomer, inventor, clockmaker, mathematician, surveyor, scientific instrument craftsman, and public official.wikipedia
150 Related Articles

American Philosophical Society

Transactions of the American Philosophical SocietyThe American Philosophical SocietyAmerican Philosophical Society Museum
Rittenhouse was a member of the American Philosophical Society and the first director of the United States Mint.
Early members included George Washington, John Adams, Thomas Jefferson, Alexander Hamilton, James McHenry, Thomas Paine, David Rittenhouse, Nicholas Biddle, Owen Biddle, Benjamin Rush, James Madison, Michael Hillegas, John Marshall, and John Andrews.

United States Mint

U.S. MintUnited States Bureau of the MintUS Mint
Rittenhouse was a member of the American Philosophical Society and the first director of the United States Mint. David Rittenhouse was treasurer of Pennsylvania from 1777 to 1789, and with these skills and the help of George Washington, he became the first director of the United States Mint.
The first Director of the United States Mint was renowned scientist David Rittenhouse from 1792 to 1795.

Clockmaker

clockmakingclockmakersclock making
David Rittenhouse (April 8, 1732 – June 26, 1796) was an American astronomer, inventor, clockmaker, mathematician, surveyor, scientific instrument craftsman, and public official.

Wissahickon Creek

WissahickonWissahickon ValleyWissahickon Gorge
This village is located near Germantown, along the stream Paper Mill Run, which is a tiny tributary of the Wissahickon Creek.
Here William Rittenhouse (grandfather of the astronomer David Rittenhouse) had in the early 18th century built the first paper mill in America.

Pennsylvania Treasurer

Pennsylvania State TreasurerTreasurer of PennsylvaniaState Treasurer
David Rittenhouse was treasurer of Pennsylvania from 1777 to 1789, and with these skills and the help of George Washington, he became the first director of the United States Mint.

Andrew Ellicott

AndrewMajor Andrew EllicottEllicott
In 1784 Rittenhouse and Andrew Ellicott completed this survey of the Mason–Dixon line to the southwest corner of Pennsylvania.
In this survey, he worked alongside David Rittenhouse and Bishop James Madison, making first connections with the scientific society of Philadelphia.

Paper Mill Run

Monoshone CreekPaper Mill Run (Monoshone Creek)
This village is located near Germantown, along the stream Paper Mill Run, which is a tiny tributary of the Wissahickon Creek.
William Rittenhouse, grandfather of the astronomer David Rittenhouse, built the first paper mill in America along Paper Mill Run in the late 17th century.

Germantown, Philadelphia

GermantownGermantown, PennsylvaniaGermantown, Philadelphia, Pennsylvania
This village is located near Germantown, along the stream Paper Mill Run, which is a tiny tributary of the Wissahickon Creek.

Henry Voigt

Henry Voight
One of Rittenhouse's hands or helpers with the project was Henry Voigt, the clockmaker and Chief Coiner under Rittenhouse at the mint.
He is credited with some of the first U.S. coin designs and participated in the 1770 production (as one of the "hands" or helpers) and 1806 repair and extension of David Rittenhouse's Orrery.

Diffraction grating

gratinggratingsgrating equation
In 1785 Rittenhouse made perhaps the first diffraction grating using 50 hairs between two finely threaded screws, with an approximate spacing of about 100 lines per inch.
The first man-made diffraction grating was made around 1785 by Philadelphia inventor David Rittenhouse, who strung hairs between two finely threaded screws.

William Rittenhouse

Wilhelm Rittenhausen
At a young age, David showed a high level of intelligence by creating a working scale model of his great-grandfather William Rittenhouse's paper mill.
His legacy continued to his descendant David Rittenhouse, who had the Rittenhouse name immortalized in Rittenhouse Square, Philadelphia, Pennsylvania.

Rittenhouse Square

Rittenhouse Square WestRittenhouseRittenhouse Row
Originally called Southwest Square, Rittenhouse Square was renamed in 1825 after David Rittenhouse, a descendant of the first paper-maker in Philadelphia, the German immigrant William Rittenhouse.

Transit of Venus

transits of VenusVenusVenus transit
The transit of Venus occurred on 3 June 1769.
In Philadelphia, the American Philosophical Society erected three temporary observatories and appointed a committee, of which David Rittenhouse was the head.

Mason–Dixon line

Mason-Dixon lineMason-Dixonstate line
In 1784, surveyors David Rittenhouse and Andrew Ellicott and their crew completed the survey of the Mason–Dixon line to the southwest corner of Pennsylvania, five degrees from the Delaware River.

Democratic-Republican Societies

Democratic Societies
Philadelphia was then the national capital and soon an English-speaking society was formed in the city by David Rittenhouse, Charles Biddle (a prominent Quaker merchant), Dr. George Logan and Alexander J. Dallas.

William Barton (heraldist)

William Barton
His mother was Esther Rittenhouse, sister of astronomer David Rittenhouse, for whom William would later write a biography.

Franklin stove

all-metal fireplaceAmerican stoveconvection chamber for the fireplace
*Franklin stove
It was intended to produce more heat and less smoke than an ordinary open fireplace, but it achieved few sales until it was improved by David Rittenhouse.

Joseph von Fraunhofer

FraunhoferJoseph FraunhoferFraunhofer refracting telescope
This was roughly the same technique that Joseph von Fraunhofer used in 1821 for his wire diffraction grating.
Fraunhofer also developed a diffraction grating in 1821, after James Gregory discovered the principles of diffraction grating and after the American astronomer David Rittenhouse invented the first manmade diffraction grating in 1785.

David Rittenhouse Laboratory

The building is named for David Rittenhouse, a notable American astronomer and Penn professor of the 18th century and the president of the American Philosophical Society.

Rittenhouse (crater)

craterRittenhouseRittenhouse Crater
This crater is named after David Rittenhouse the great descendant of William Rittenhouse who came from Prussia in the late 17th century.

Armin Shimerman

The Merchant Prince
A fictionalized version of David Rittenhouse, portrayed by Armin Shimerman, appeared in the tenth episode of the first season of the NBC television series Timeless (2016-2018).

Astronomer

astronomersastrophysicistprofessional astronomers
David Rittenhouse (April 8, 1732 – June 26, 1796) was an American astronomer, inventor, clockmaker, mathematician, surveyor, scientific instrument craftsman, and public official.

Inventor

inventedToy inventorairplane manufacturer
David Rittenhouse (April 8, 1732 – June 26, 1796) was an American astronomer, inventor, clockmaker, mathematician, surveyor, scientific instrument craftsman, and public official.

Mathematician

mathematiciansapplied mathematicianMathematics
David Rittenhouse (April 8, 1732 – June 26, 1796) was an American astronomer, inventor, clockmaker, mathematician, surveyor, scientific instrument craftsman, and public official.