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Repeater (horology) The 13 in (33 cm) watch by Louis Brandt (1892) was the first wristwatch with a minute repeater. The movement was manufactured by Audemars Piguet. A repeater is a complication in a mechanical watch or clock that chimes the hours and often minutes at the press of a button. There are many types of repeater, from the simple ...
The period T is the time taken to complete one cycle of an oscillation or rotation. The frequency and the period are related by the equation [ 4 ] f = 1 T . {\displaystyle f={\frac {1}{T}}.} The term temporal frequency is used to emphasise that the frequency is characterised by the number of occurrences of a repeating event per unit time.
Pictionary (/ ˈpɪkʃənəri /, US: /- ɛri /) is a charades -inspired word-guessing game invented by Robert Angel with graphic design by Gary Everson and first published in 1985 by Angel Games Inc. [ 1 ] Angel Games licensed Pictionary to Western Publishing. Hasbro purchased the rights in 1994 after acquiring the games business of Western ...
"stopwatch" and "timer" will provide interactive timing methods; the stopwatch counting up and the timer counting down. Both tools are shown for each search term. Variants such as "set a timer for 10 minutes" can be used. [127] "tic tac toe" or "terni lapilli" will show a playable game of tic-tac-toe. Users can select to play against the ...
A crystal oscillator is an electronic oscillator circuit that uses a piezoelectric crystal as a frequency-selective element. [1] [2] [3] The oscillator 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 frequencies for radio transmitters and receivers.
The 555 timer IC is an integrated circuit used in a variety of timer, delay, pulse generation, and oscillator applications. It is one of the most popular timing ICs due to its flexibility and price. Derivatives provide two (556) or four (558) timing circuits in one package. [ 2 ] The design was first marketed in 1972 by Signetics [ 3 ][ 4 ] and ...
One pin receives the timer restart ("kick" [a]) signal from the computer; another pin outputs the timeout signal. A watchdog timer (WDT, or simply a watchdog), sometimes called a computer operating properly timer (COP timer), [1] is an electronic or software timer that is used to detect and recover from computer malfunctions. Watchdog timers ...
A signal generator is one of a class of electronic devices that generates electrical signals with set properties of amplitude, frequency, and wave shape. These generated signals are used as a stimulus for electronic measurements, typically used in designing, testing, troubleshooting, and repairing electronic or electroacoustic devices, though it often has artistic uses as well.