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Clock type
Quartz clocks and quartz watches are timepieces that use an electronic oscillator regulated by a quartz crystal to keep time. The crystal oscillator,
Quartz_clock
Instrument for measuring, keeping or indicating time
quartz clocks and watches. Currently, atomic clocks are the most accurate clocks in existence. They are considerably more accurate than quartz clocks
Clock
Mineral made of silicon and oxygen
prismatic quartz Sceptered quartz Sceptered quartz (as aggregates: "Elestial quartz") Bipyramidal quartz Tessin or tapered quartz Twinned quartz (known as
Quartz
1970s–80s watchmaking industry upheaval
included replacing the mechanical or electromechanical movement with a quartz clock movement as well as replacing analog displays with digital displays such
Quartz_crisis
Canadian engineer and inventor of the quartz clock
Canadian engineer and inventor. Marrison was the co-inventor of the first Quartz clock in 1927. Marrison was born in Inverary, Frontenac county, Ontario. He
Warren_Marrison
Clock which synchronizes its time using radio transmitters
radio clock or radio-controlled clock (RCC), and often colloquially (and incorrectly) referred to as an "atomic clock", is a type of quartz clock or watch
Radio_clock
Electronic oscillator circuit
frequency is often used to keep track of time, as in quartz wristwatches, to provide a stable clock signal for digital integrated circuits, and to stabilize
Crystal_oscillator
Clock regulated by a pendulum
pendulum clocks, accurate to about 10 milliseconds per day. In 1929 it switched to the Shortt-Synchronome free pendulum clock before phasing in quartz standards
Pendulum_clock
Type of clock that displays the time with numbers
Odyssey. Digital clocks typically use the 50 or 60 hertz oscillation of AC power or a 32,768 hertz crystal oscillator as in a quartz clock to keep time.
Digital_clock
Type of single-phase motor, typically driving a timepiece
in electro-mechanical clocks and is a special kind of single-phase stepping motor. Both analog and stepped-movement quartz clocks use the Lavet-type stepping
Lavet-type_stepping_motor
Clock powered by electricity
powered mechanical clocks that were used before quartz clocks were introduced in the 1980s. The first experimental electric clocks were constructed around
Electric_clock
with an internal atomic clock. Unlike the radio watches described above, which achieve atomic clock accuracy with quartz clock circuits which are corrected
History_of_watches
Dial of an analogue clock or watch
A clock face is the part of an analog clock (or watch) that displays time through the use of a flat dial with reference marks, and revolving pointers
Clock_face
Clock used on ships to aid in navigation
be based on quartz clocks that are corrected periodically by satellite time signals or radio time signals (see radio clock). These quartz chronometers
Marine_chronometer
First quartz wristwatch in the world; made by Seiko in 1969
Astron wristwatch, formally known as the Seiko Quartz-Astron 35SQ, was the world's first "quartz clock" wristwatch. It is now registered on the List of
Astron_(wristwatch)
Mechanism for regulating the speed of clocks
Shortt-Synchronome clock achieved accuracy of about one second per year before it was superseded as a time standard by the quartz clock in the 1930s. Pendulums
Pendulum
Car produced by Renault between 1984 and 1996
featured reclining seats, upholstery identical to that of the NRJ series, quartz clock, side air vents on the dashboard, windscreen wipers with variable speed
Renault_Super_5
chronometer. The electric clock, invented in 1840, was used to control the most accurate pendulum clocks until the 1940s, when quartz timers became the basis
History of timekeeping devices
History_of_timekeeping_devices
Circuit in a computer that maintains accurate time
crystal frequency is usually 32.768 kHz, the same frequency used in quartz clocks and watches. Being exactly 215 cycles per second, it is a convenient
Real-time_clock
Clock that monitors the resonant frequency of atoms
atomic beam magnetic resonance frequency clocks. The accuracy of mechanical, electromechanical and quartz clocks is reduced by temperature fluctuations
Atomic_clock
Clock that strikes the hours with a sound like a common cuckoo's call
hour). Some musical quartz clocks in the chalet style also reproduce many of the popular automata found on mechanical musical clocks, such as beer drinkers
Cuckoo_clock
Device only intended to turn itself off
plane Lever Pulley Screw Wedge Wheel and axle Clocks Atomic clock Chronometer Pendulum clock Quartz clock Compressors and pumps Archimedes' screw Eductor-jet
Useless_machine
Topics referred to by the same term
component Engineered quartz, a synthetic material used for countertops and the like, called "quartz" in the trade Quartz clock, a clock or watch using an
Quartz_(disambiguation)
Where a clock does not run at same rate as reference clock
quartz oscillator is less subject to drift due to manufacturing variances than the pendulum in a mechanical clock. Hence most everyday quartz clocks do
Clock_drift
Mechanism for regulating the speed of clocks
used in clocks and watches. The invention of the crystal oscillator and the quartz clock in the 1920s, which became the most accurate clock by the 1930s
Escapement
First Swiss quartz watch to be produced
an 8192 Hz Electroquartz clock, this was Omega SA's first quartz production quartz clock and used a thermo-compensated quartz bar and integrated circuit
Omega_Electroquartz
Humanoid walking vehicles in science fiction
plane Lever Pulley Screw Wedge Wheel and axle Clocks Atomic clock Chronometer Pendulum clock Quartz clock Compressors and pumps Archimedes' screw Eductor-jet
Mecha
Machine that converts one or more forms of energy into mechanical energy (of motion)
ropeway conveyors have used the energy from moving water or rocks, and some clocks have a weight that falls under gravity. Other forms of potential energy
Engine
Clock that marks time with a musical tune
electric clocks such as quartz clocks, the music is usually generated using an electronic sound module. Most of these quartz musical clocks utilize either
Musical_clock
Japanese manufacturing company
clocks, electronic devices, and semiconductors. Founded in 1881 by Kintarō Hattori in Tokyo, Seiko introduced the world's first commercial quartz wristwatch
Seiko
Clock that is dependent on another clock for its accuracy
manufactured by Synchronome Slave clock drive mechanism A slave clock driven by a quartz clock module Clock network This article incorporates public domain material
Slave_clock
Device for physical exercise
plane Lever Pulley Screw Wedge Wheel and axle Clocks Atomic clock Chronometer Pendulum clock Quartz clock Compressors and pumps Archimedes' screw Eductor-jet
Exercise_machine
Personal timepiece
capabilities, and some use radio clock technology to regularly correct the time. Most watches used mainly for timekeeping have quartz movements. But expensive
Watch
plane Lever Pulley Screw Wedge Wheel and axle Clocks Atomic clock Chronometer Pendulum clock Quartz clock Compressors and pumps Archimedes' screw Eductor-jet
List of agricultural machinery
List_of_agricultural_machinery
Streamlined body for generating lift
plane Lever Pulley Screw Wedge Wheel and axle Clocks Atomic clock Chronometer Pendulum clock Quartz clock Compressors and pumps Archimedes' screw Eductor-jet
Airfoil
Machine capable of carrying out a complex series of actions automatically
describes humanoid automata. In 1066, Chinese inventor Su Song built a water clock in the form of a tower that featured mechanical figurines that chimed the
Robot
Type of reciprocating heat engine
plane Lever Pulley Screw Wedge Wheel and axle Clocks Atomic clock Chronometer Pendulum clock Quartz clock Compressors and pumps Archimedes' screw Eductor-jet
External_combustion_engine
Device that imparts energy to the fluids by mechanical action
plane Lever Pulley Screw Wedge Wheel and axle Clocks Atomic clock Chronometer Pendulum clock Quartz clock Compressors and pumps Archimedes' screw Eductor-jet
Pump
creating a massive impetus for development in this area. Quartz clocks – The first quartz clock was invented in 1927. However, in the late 1960s, NASA partnered
NASA_spin-off_technologies
Family of spiders (Sparassidae)
This sound can often be heard as a rhythmic ticking, somewhat like a quartz clock, which fades in and out and can be heard by human ears in a relatively
Huntsman_spider
Type of clock
voltage DC motor to spin the arm once at a faster speed, with a modified quartz clock mechanism triggering the motor to drop a single ball at the top of the
Rolling_ball_clock
Königsberg. developer of the quartz clock. Kamiel Festraets (1904–1974), Flemish clockmaker, Sint-Truiden, astronomical clock of Sint-Truiden. Horst Landrock
List_of_watchmakers
Elastic object that stores mechanical energy
appeared early in the 15th century, in door locks. The first spring-powered clocks appeared in that century and evolved into the first large watches by the
Spring_(device)
Time standard based on atomic clocks
atomic time scales consisted of quartz clocks with frequencies calibrated by a single atomic clock; the atomic clocks were not operated continuously.
International_Atomic_Time
Mechanical device that changes the direction or magnitude of a force
Retrieved May 21, 2008. Stephen, Donald; Lowell Cardwell (2001). Wheels, clocks, and rockets: a history of technology. US: W. W. Norton & Company. pp. 85–87
Simple_machine
Powered mechanical device
Retrieved 2008-05-21. Stephen, Donald; Lowell Cardwell (2001). Wheels, clocks, and rockets: a history of technology. US: W. W. Norton & Company. pp. 85–87
Machine
clock becomes the first clock more accurate than the rotation of the Earth 1927 - Joseph Horton and Warren Marrison describe the first quartz clock at
Timeline of time measurement inventions
Timeline_of_time_measurement_inventions
American clock manufacturing company
somewhat unattractive electric cable. Furthermore, the accuracy of the quartz clock superseded the principles of the synchronous motor. GE tried to respond
Telechron
standard timekeeper until it was superseded as a time standard by the quartz clock in the 1930s. In the mid-19th century, the need for a standard time zone
Time_in_the_Netherlands
Pseudo distance between a satellite and a navigation satellite receiver
for such distances. Typically a quartz oscillator is used in the receiver to do the timing. The accuracy of quartz clocks in general is worse (i.e. more)
Pseudorange
German longwave time signal radio station
sufficient for radio controlled low cost consumer grade clocks and watches using standard-quality quartz clocks for timekeeping between daily DCF77 synchronization
DCF77
Set of distinct concepts or thought patterns
system, the discovery of electrostatic photography, xerography and the quartz clock.[citation needed] Kuhn pointed out that it could be difficult to assess
Paradigm
American global watch manufacturing company
(Solid State Quartz) digital watch line and with their Indiglo backlight system. Brass manufacturer Benedict & Burnham created Waterbury Clock Company in
Timex_Group_USA
Clock that sounds the time with a bell or gong
Some quartz clocks also contain speakers and sound chips that electronically imitate the sounds of a chiming or striking clock. Other quartz striking
Striking_clock
Device used to synchronize a circuit
The basic parts that all clock generators share are a resonant circuit and an amplifier. The resonant circuit is usually a quartz piezo-electric oscillator
Clock_generator
Sports car
cosmetic. The interior received a redesigned centre console and a digital quartz clock. On the exterior were redesigned side view mirrors and 14x51⁄2 inch aluminium
Toyota_Supra
electron microscope (authors: Knoll, v.-Borries, Ruska und Bruche), quartz clock (Scheibe und Adelsberger), development of a diesel-electric transmission
Science and technology in Nazi Germany
Science_and_technology_in_Nazi_Germany
Motor vehicle
Specification of TL plus: Foam-filled steering wheel H4 iodine headlights Quartz clock Velour upholstery Styled wheels Driver's side interior courtesy light
Renault_18
Series of direct-drive turntables
removable hinged lid. The MK5 is the last 1200 model to retain an analog, quartz-clock-based pitch control. Brake speed can be adjusted by using a small screwdriver
Technics_SL-1200
American Subcompact car
also has a center storage tray, lighter, extra 12-volt outlet, digital quartz clock and lighted glove box. The Aveo has generally not been rated highly by
Daewoo_Kalos
Machines that count seeds for research and packaging
plane Lever Pulley Screw Wedge Wheel and axle Clocks Atomic clock Chronometer Pendulum clock Quartz clock Compressors and pumps Archimedes' screw Eductor-jet
Seed-counting_machine
Time of day voice service
A speaking clock or talking clock is a live or recorded human voice service, usually accessed by telephone, that gives the correct time. The first telephone
Speaking_clock
1887 investigation of the speed of light
automated interferometer with 21-meter-long (69 ft) arms forged from pressed quartz having a very low coefficient of thermal expansion, that took continuous
Michelson–Morley_experiment
Device that generates sounds of constant pitch when struck
directly, suffered from low volume. The quartz crystal that serves as the timekeeping element in modern quartz clocks and watches is in the form of a tiny
Tuning_fork
Overview of and topical guide to machines
Cotter pin, Spring pin, Taper pin Splines Keys Clock Atomic clock Watch Pendulum clock Quartz clock Compressors and pumps Archimedes' screw Eductor-jet
Outline_of_machines
Mobile equipment that transports people, animals or cargo
plane Lever Pulley Screw Wedge Wheel and axle Clocks Atomic clock Chronometer Pendulum clock Quartz clock Compressors and pumps Archimedes' screw Eductor-jet
Vehicle
American inventor
battery-operated quartz clock, electric clock sales begs to fall. The Ashland plant was sold to Timex in 1979. By 1992, Timex had decided to move clock production
Henry_E._Warren
German multinational electronics company
its catalog at this time. In 1938, it manufactured the first portable quartz clock with a weight of 36 kg. PTE Started a second factory "Messgerätebau GmbH"
Rohde_&_Schwarz
Electric charge generated in certain solids due to mechanical stress
piezoelectrical properties of quartz are useful as a standard of frequency. Quartz clocks employ a crystal oscillator made from a quartz crystal that uses a combination
Piezoelectricity
Multi-sport event in Helsinki, Finland
technology. OMEGA debuted the OMEGA Time Recorder in Helsinki. This all-new quartz clock not only timed the events but also printed out the results. This breakthrough
1952_Summer_Olympics
English physicist (1887 – 1932)
first quartz clock. Louis Essen joined Dye's research group at the National Physical Laboratory in 1929 and went on to develop practical clocks after
David_William_Dye
Henn-Collins was a prolific inventor, including the first transistorised quartz clock. Born in 1915, Christopher Henn-Collins was the third son of Lieutenant-Colonel
Christopher_Henn-Collins
Swiss timekeeping products manufacturer
equipped the Observatory of Neuchâtel where the first quartz clocks were installed. Further quartz clocks were delivered to the Observatory of Paris in 1955
Oscilloquartz
Series of pickup trucks made by Mazda
steering wheel, AM/FM stereo, tachometer, temperature gauge, digital quartz clock, tinted glass, sliding rear window, dual black mirrors, body side mouldings
Mazda_B_series
Compact pickup truck made by Nissan between 1955-97
top-of-the-line model came with full carpeting, bucket seats, tachometer, quartz clock, intermittent wipers, center console, and woodgrain accents on the dash
Datsun_truck
Clock or watch face showing the full 24 hours
Hamilton A modern quartz clock with a 24-hour face A simple 24 hour clock showing the approximate position of the sun The Willis World Clock, which shows a
24-hour_analog_dial
Car model
remote mirrors, and door trim. XE offered cut pile carpeting, an analog quartz clock, remote rear window opener, a low-fuel warning light, an AM-FM Clarion
Nissan_Sentra
Robotic design company based in Cornwall, England
plane Lever Pulley Screw Wedge Wheel and axle Clocks Atomic clock Chronometer Pendulum clock Quartz clock Compressors and pumps Archimedes' screw Eductor-jet
Engineered_Arts
demonstrates the world's first live working television system. 1927: The quartz clock is invented by Warren Marrison and J.W. Horton at Bell Telephone Laboratories
Timeline of historic inventions
Timeline_of_historic_inventions
8-bit microcontroller
slow clock; most models include a second 32768 Hz quartz clock crystal oscillator which can be used for the CPU clock while the high-speed clock is disabled
COP8
Motor vehicle
leatherette and tartan cloth. Options were limited to alloy wheels, a quartz clock and metallic paint. In May 1978 the Alfasud Sprint underwent its first
Alfa_Romeo_Sprint
Japanese inventor and scientist
Oscillation of Quartz Plates", Report of Radio Researches and Works in Japan, Vol. 4, No. 2, pp. 61-76, February 1934. (Quartz Clock) [10] I. Koga, "Quartz Electric
Issac_Koga
Chronological list of advances
Black in 1927. 1927 Quartz clock The quartz clock is a clock that keeps time by using an electronic oscillator regulated by a quartz crystal. This allows
Timeline of United States inventions (1890–1945)
Timeline_of_United_States_inventions_(1890–1945)
Form of race timing
first to use a quartz clock and print out results, earning the company a prestigious Cross of Merit from the Olympic Committee. Clocks were added to slit
Fully_automatic_time
Passive two-terminal electrical component that stores energy in its magnetic field
plane Lever Pulley Screw Wedge Wheel and axle Clocks Atomic clock Chronometer Pendulum clock Quartz clock Compressors and pumps Archimedes' screw Eductor-jet
Inductor
invent.org. June 4, 2024. "NIHF Inductee Warren Marrison Invented the Quartz Clock". www.invent.org. June 5, 2024. "NIHF Inductee Whitfield Diffie Invented
List of National Inventors Hall of Fame inductees
List_of_National_Inventors_Hall_of_Fame_inductees
Device or system that exhibits resonance
attached electrodes. These crystal oscillators are used in quartz clocks and watches, to create the clock signal that runs computers, and to stabilize the output
Resonator
Clocks with visible inner workings
quartz mechanism. The quartz movement used is a low cost, mass produced, plastic mechanism of no decorative value. It is disguised within the clock’s
Skeleton_clock
Motor vehicle
plus carpets. E revised with plaid cloth upholstery; L with radio and quartz clock; GL with front head restraints, radio and (on hatchback) load area cover
Vauxhall_Chevette
Manufacturer
plane Lever Pulley Screw Wedge Wheel and axle Clocks Atomic clock Chronometer Pendulum clock Quartz clock Compressors and pumps Archimedes' screw Eductor-jet
Fluid Equipment Development Company
Fluid_Equipment_Development_Company
French longwave broadcast transmitter
timekeeping frequency used by most quartz clocks) to be a more convenient frequency standard. In 1980, the first atomic clock was installed to regulate the
Allouis_longwave_transmitter
American consumer electronics manufacturer and distributor
1980s, Unisonic released a series of digital calculators that featured a quartz clock and an electronic game. Among the calculators produced were Casino 7
Unisonic_Products_Corporation
Electronic signal to synchronize circuits
included a quartz oscillator. These IC produced the two-phase non-overlapping waveforms the 6800 and 8080 required. Later, Intel produced the 8224 clock generator
Clock_signal
Process where information about current status is used to influence future status
broadcast by radio and television transmitters, clock signals that regulate computers and quartz clocks, and the sounds produced by electronic beepers
Feedback
Former clock factory in Scotland, United Kingdom
of Quartz clock technology, developed largely by General Time for use in the Apollo 11 Command Module, resulted in the reduction of mechanical clock production
Westclox_Scotland
Multi-sport event in Squaw Valley, California, US
New timing equipment provided by Longines was installed that used a quartz clock to measure to the hundredths of a second. IBM provided a computer that
1960_Winter_Olympics
1899 Fabergé egg
The Rose Quartz egg or Pink Quartz egg is a Fabergé egg made by Michael Perkhin under the supervision of Carl Fabergé. It was ordered by an unknown private
Rose_Quartz_(Fabergé_egg)
SI unit of time
1⁄86,400 of a mean solar day. Sometime in the late 1940s, quartz crystal oscillator clocks with an operating frequency of ~100 kHz advanced to keep time
Second
Region of England
the quartz clock in the 1930s at the National Physical Laboratory in Teddington, to produce the quartz ring clock in 1938, and the caesium clock, known
East_Midlands
Charles Fenerty in 1838 Pager – invented by Irving "Al" Gross in 1949 Quartz clock – built by Warren Marrison in 1927 Radiotelephony – first demonstrated
List of Canadian inventions, innovations, and discoveries
List_of_Canadian_inventions,_innovations,_and_discoveries
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