The American Waltham Watch Company produced about 40 million high quality watches, clocks, speedometers, compasses, time fuses and other precision instruments between 1850 and 1950. Waltham Watch Company - History. In 1850, Roxbury, Massachusetts, David Davis, Edward Howard and Aaron Lufkin Dennison formed together the company that would later become the American Waltham Watch Company. The revolutionary business plan was to manufacture the movement parts so precisely that they would become fully inte ...

Including:

Waltham Watch Company - History
Waltham Watch Company - American Horologe Company Waltham Watch Company - Boston Watch Company Waltham Watch Company - Appleton Tracy & Co Waltham Watch Company - American Waltham Watch Company Waltham Watch Company - Waltham International SA Waltham Watch Company - Serial Numbers

Read more here: » Waltham Watch Company: Encyclopedia - Waltham Watch Company

See also:

Centennial Exposition, Centennial Exposition - New Products, Centennial Exposition - External link

Read more here: » Centennial Exposition: Encyclopedia II - Centennial Exposition - New Products

1850 - Unknown Date. The United States Republican Party is founded Foundation of the University of Sydney, the oldest in Australia The American System of Watch Manufacturing starts in Roxbury, Mass.U.S.A. Waltham Watch Company Bingley Hall, the world's first purpose- built exhibition hall, opens in Birmingham, England. Pinkerton Detective Agency France begins to transport colonists to Algeria Modern acoustic guitar created in Spain Rifling becom ...

See also:

1850, 1850 - Events, 1850 - Unknown Date, 1850 - Births, 1850 - January - April, 1850 - May - December, 1850 - Unknown Date, 1850 - Deaths, 1850 - January - May, 1850 - June - December, 1850 - Unknown Date

Read more here: » 1850: Encyclopedia II - 1850 - Events

1850 - Unknown Date. The United States Republican Party is founded Foundation of the University of Sydney, the oldest in Australia The American System of Watch Manufacturing starts in Roxbury, Mass.U.S.A. Waltham Watch Company Bingley Hall, the world's first purpose- built exhibition hall, opens in Birmingham, England. Pinkerton Detective Agency France begins to transport colonists to Algeria Modern acoustic guitar created in Spain Rifling becom ...

See also:

1850, 1850 - Events, 1850 - Unknown Date, 1850 - Births, 1850 - January - April, 1850 - May - December, 1850 - Unknown Date, 1850 - Deaths, 1850 - January - May, 1850 - June - December, 1850 - Unknown Date

Read more here: » 1850: Encyclopedia II - Events

Canada - Mexico - South Africa - U.S. Rail Transport - Science - Sports Births - Deaths 1854 was a common year starting on Sunday (see link for calendar). 1854 - Events. January 4 - The McDonald Islands are discovered by Captain William McDonald aboard the Samarang. January 13 - The accordion is patented by Anthony Faas. January 21 - Loss of the Tayleur - 380 drowned, later dubbed "the first Titanic" February 11 - Major stree ...

Including:

1854 - Events 1854 - Births 1854 - Deaths

Read more here: » 1854: Encyclopedia - 1854

Canada - Mexico - South Africa - U.S. Rail Transport - Science - Sports Births - Deaths 1850 was a common year starting on Tuesday (see link for calendar). 1850 - Events. January 4 - The first American ice-skating club is formed (Philadelphia, Pennsylvania). January 29 - Henry Clay introduces the Compromise of 1850 to the U.S. Congress February 28 - University of Utah opens in Salt Lake City, Utah March 7 - United States Senator Daniel Webster giv ...

Including:

1850 - Events 1850 - Births
1850 - January - April 1850 - May - December 1850 - Unknown Date
1850 - Deaths
1850 - January - May 1850 - June - December 1850 - Unknown Date

Read more here: » 1850: Encyclopedia - 1850

Aaron Lufkin Dennison was inspired by the manufacturing techniques of the United States Armory at Springfield, Mass. The "armory practice" was mainly based on a strict system of organization, the extensive use of the machine shop and a control system based on gauges. In the rest of the world manufacturing meant making certain parts under the roof of a factory and obtaining other parts from piece workers who used their own cottages as workshops. The American System of manufacturing by interchangeable parts meant the establishmen ...

Read more here: » American System of Watch Manufacturing: Encyclopedia - American System of Watch Manufacturing

In naval parlance, watches are a timekeeping convention. The term in general use can mean any period of duty or responsibility, such as a hurricane watch. A watch is a small portable clock that displays the time and sometimes the day, date, month and year. In modern times they are usually worn on the wrist with a watch-strap (made of e.g. leather (often synthetic), metal, or nylon), although before the 20th century most were pocket watches, which had covers and were carried separately, oft ...

Including:

Watch - Types of watch
Watch - Pocket clock Watch - Wrist watch Watch - Complicated watch Watch - Chronographs and chronometers Watch - Electromechanical watches Watch - Quartz analog watch Watch - Digital watches Watch - Fashionable watches Watch - Advanced watches

Read more here: » Watch: Encyclopedia - Watch

A chronometer is a clock accurate enough to be used as a portable time standard on a vehicle, usually in order to determine longitude by means of celestial navigation. In Switzerland, only timepieces certified by the COSC may use the word 'Chronometer' on them. Chronometer - History. Until the mid 1750s, navigation at sea was an unsolved problem due to the difficulty in calculating longitudinal position. Navigators could determine their latitude by measuring the sun's angle at noon. However to find their lo ...

Including:

Chronometer - History Chronometer - Mechanical Chronometers
Chronometer - Complications
Chronometer - Today

Read more here: » Chronometer: Encyclopedia - Chronometer

Aaron Lufkin Dennison (March 6, 1812 – January 9, 1895) was an American watchmaker born in Freeport, Maine. Aaron Lufkin Dennison - His Life. Upon a three year apprenticeship with James Cary, he went to work as a journeyman watchmaker in Boston in 1833. There he followed the advice of Tubal Hone, a fellow American watchmaker, and discovered inaccuracies in the workmanship and construction, of even the best of hand-made watches. He often visited the Springfield armory, predicting that the manufactu ...

Including:

Aaron Lufkin Dennison - His Life Aaron Lufkin Dennison - Sources

Read more here: » Aaron Lufkin Dennison: Encyclopedia - Aaron Lufkin Dennison

October 1 is the 274th day of the year (275th in Leap years). There are 91 days remaining. October 1 - Events. 331 BC - Alexander the Great defeats Darius III of Persia in the Battle of Gaugamela. 959 - Edgar the Peaceable becomes king of all England. 965 - John XIII becomes Pope. 1788 - Nguyen Hue declares himself emperor of Viet Nam. 1791 - First session of the French Legislative Assembly. 1795 - Belgium is conquered by Fran ...

Including:

October 1 - Events October 1 - Fictional Events October 1 - Births October 1 - Deaths October 1 - Holidays and observances

Read more here: » October 1: Encyclopedia - October 1

Waltham is a city located in Middlesex County, Massachusetts. As of the 2000 census, the city had a total population of 59,226. The city is 10 miles west of Boston, Massachusetts on the Charles River. Waltham is partly surrounded by Interstate 95 (I-95). It is bordered to the west by Weston and Lincoln, to the south by Newton, to the east by Belmont and Watertown, and to the north by Lexington. Waltham is home to Brandeis University, Bentley College, and The Sports Authority Training Center, which serves a ...

Including:

Waltham Massachusetts - History Waltham Massachusetts - Geography Waltham Massachusetts - Demographics Waltham Massachusetts - Culture Waltham Massachusetts - Notable Waltham community members Waltham Massachusetts - Points of interest

Read more here: » Waltham Massachusetts: Encyclopedia - Waltham Massachusetts

1850 - January - April. January 4 - Frederick York Powell, English historian and scholar (died 1904) January 6 - Eduard Bernstein, German social democratic theoretician and politician (died 1932) January 6 - Xaver Scharwenka, Polish-German composer (died 1924) January 10 - John Wellborn Root, U.S. architect (died 1891) January 11 - Philipp von Ferrary, Italian stamp collector (died 1917) January 14 - Pierre Loti, French sailor and writer (died 1923) Janu ...

See also:

1850, 1850 - Events, 1850 - Unknown Date, 1850 - Births, 1850 - January - April, 1850 - May - December, 1850 - Unknown Date, 1850 - Deaths, 1850 - January - May, 1850 - June - December, 1850 - Unknown Date

Read more here: » 1850: Encyclopedia II - Births

Watch - Pocket clock. Main article: pocket watch The earliest need for portability in time keeping was navigation and mapping in the 15th century. The latitude could be measured by looking at the stars, but the only way a ship could measure its longitude was by comparing timezones; by comparing the midday time of the local longitude to a European meridian (usually Paris or Greenwich), a sailor could know how far he was from home. However, the process was notoriously unreliable until the ...

See also:

Watch, Watch - Types of watch, Watch - Pocket clock, Watch - Wrist watch, Watch - Complicated watch, Watch - Chronographs and chronometers, Watch - Electromechanical watches, Watch - Quartz analog watch, Watch - Digital watches, Watch - Fashionable watches, Watch - Advanced watches, Watch - Mobile phones as pocket watches

Read more here: » Watch: Encyclopedia II - Watch - Types of watch

Upon a three year apprenticeship with James Cary, he went to work as a journeyman watchmaker in Boston in 1833. There he followed the advice of Tubal Hone, a fellow American watchmaker, and discovered inaccuracies in the workmanship and construction, of even the best of hand-made watches. He often visited the Springfield armory, predicting that the manufacture of watches would soon be reduced to as much system and perfection as the manufacture firearms. Around 1840 he invented the Dennison Standard Gauge and then began to develop the "Interchangeable Sys ...

See also:

Aaron Lufkin Dennison, Aaron Lufkin Dennison - His Life, Aaron Lufkin Dennison - Sources

Read more here: » Aaron Lufkin Dennison: Encyclopedia II - Aaron Lufkin Dennison - His Life

Watch - Pocket clock. The earliest need for portability in time keeping was navigation and mapping in the 15th century. The latitude could be measured by looking at the stars, but the only way a ship could measure its longitude was by comparing timezones; by comparing the midday time of the local longitude to a European meridian (usually Paris or Greenwich), a sailor could know how far he was from home. However, the process was notoriously unreliable until the introduction of John Harrison's chronometer. For that reason, most maps from the 15th century to c.1800 have pre ...

See also:

Watch, Watch - Types of watch, Watch - Pocket clock, Watch - Wrist watch, Watch - Complicated watch, Watch - Chronographs and chronometers, Watch - Electromechanical watches, Watch - Quartz analog watch, Watch - Digital watches, Watch - Fashionable watches, Watch - Advanced watches

Read more here: » Watch: Encyclopedia II - Watch - Types of watch

Waltham is located at 42°22'50" North, 71°14'6" West (42.380596, -71.235005)GR1, about 9 miles (14 km) north-west of Boston, Massachusetts. The city stretches along the Charles River and contains several waterfalls. These waterfalls were used to power textile mills and other such endeavors, accounting for its early industrial activity. According to the United States Census Bureau, the city has a total area of 35.2 km² (13.6 mi²). 32.9 km² (12.7 mi²) of it is land and 2.4 km² (0.9 m ...

See also:

Waltham Massachusetts, Waltham Massachusetts - History, Waltham Massachusetts - Geography, Waltham Massachusetts - Demographics, Waltham Massachusetts - Culture, Waltham Massachusetts - Notable Waltham community members, Waltham Massachusetts - Points of interest

Read more here: » Waltham Massachusetts: Encyclopedia II - Waltham Massachusetts - Geography

1850 - January - April. January 4 - Frederick York Powell, English historian and scholar (died 1904) January 6 - Eduard Bernstein, German social democratic theoretician and politician (died 1932) January 6 - Xaver Scharwenka, Polish-German composer (died 1924) January 10 - John Wellborn Root, U.S. architect (died 1891) January 11 - Philipp von Ferrary, Italian stamp collector (died 1917) January 14 - Pierre Loti, French sailor and writer (died 1923) Janu ...

See also:

1850, 1850 - Events, 1850 - Unknown Date, 1850 - Births, 1850 - January - April, 1850 - May - December, 1850 - Unknown Date, 1850 - Deaths, 1850 - January - May, 1850 - June - December, 1850 - Unknown Date

Read more here: » 1850: Encyclopedia II - 1850 - Births

The crucial problem was to find a resonator that remained unaffected by the motions of a ship at sea. The balance wheel solved that problem. Balance wheels for chronometers used bi-metallic strips to move small weights toward and away from the center of the wheel, in order to adjust the period of the balance wheel for the temperature of the chronometer. Solid balance-wheels of low-expansion steel alloys such as invar give results ...

See also:

Chronometer, Chronometer - History, Chronometer - Mechanical chronometers, Chronometer - Complications, Chronometer - Today

Read more here: » Chronometer: Encyclopedia II - Chronometer - Mechanical chronometers

Framingham was first settled in 1650 and was officially incorporated in 1700 on land formerly known as Danforth's Farms, after landowner Thomas Danforth, of Framlingham, England. Why the "L" was dropped for the new town's name is not known. Crispus Attucks, whose death was made famous in an etching of the Boston Massacre by Paul Revere, was born here. Framingham was also home to Christa McAuliffe, the first teacher in space, who died in the Challenger disaster. During the Post-World War II baby boom Framingham, like many other suburban areas ...

See also:

Framingham Massachusetts, Framingham Massachusetts - Pronunciation, Framingham Massachusetts - History, Framingham Massachusetts - Two separate communities, Framingham Massachusetts - Geography, Framingham Massachusetts - Demographics

Read more here: » Framingham Massachusetts: Encyclopedia II - Framingham Massachusetts - History