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- Timeline of invention (28171 bytes)
3: ...o a practical form. Where there is ambiguity, the date of the first practical, fielded version of the ...
18: * 8700 BC: [[Metalworking]] ([[copper]] pendant in [[Iraq]])
133: * [[1714]]: [[Mercury thermometer]]: [[Daniel Gabriel Fahrenheit]]
145: ...]: [[Submarine]] [[Turtle (submarine)|Turtle]]: [[David Bushnell]]
182: ...6]]: [[Davy lamp|Miner's safety lamp]]: [[Humphry Davy]] - Electronic musical instrument (4501 bytes)
10: ...trified musical instrument was the [[Denis d?or]] dating from [[1753]]. It was followed by the [[Clave...
14: ...Leon Theremin]] in 1917, which used a vacuum tube oscillator to make sounds that depended on the interactions ... - Clock (10086 bytes)
2: ...ct system of time measurement (''ed.'' see [[calendar]] for other measurements).
14: ..., event initiation or just to display the time of day.
27: ...rrent, periodic process (a [[metronome]]) is an [[oscillator]] and typically generates a ''clock signal''. Som...
43: ...s Cathedral]] installed a ‘horologe’—the word still used in French for large clocks....
47: ...ivided into four equal parts making the clocks readable to the nearest 15 minutes. - Capacitor (29664 bytes)
7: ...s stored at the surface of the plates, at the boundary with the dielectric. Because each plate stores...
34: The [[impedance]] in [[frequency domain]] can be written as
38: Applying the [[Laplace transform]], the impedance becomes:
52: ..., as timing elements, and for balancing [[crystal oscillator]]s. Ceramic capacitors tend to have low inductan...
70: ...rief summary to that article ? --[[User:DavidCary|DavidCary]] 22:46, 1 Jun 2005 (UTC) --> - Astable (461 bytes)
1: ...is stable. The circuit therefore behaves as an [[oscillator]]. The time spent in each state is usually contr... - Nikola Tesla (29894 bytes)
33: * fundamental principles, devices, and machinery of [[wir...
34: ...io]]) and radio frequency [[electronic oscillator|oscillator]]s
49: ...ulian calendar]]; July 10 in the [[Gregorian calendar]]) [[1856]], and christened by the Serbian ortho...
53: ...On the opening of the [[telephone]] exchange in Budapest, 1881, Tesla became the chief electrician to ...
57: ...nager in his previous job). The letter of recommendation from [[Charles Batchelor]] to Thomas Edison r... - Physics (25628 bytes)
4: ...hysics]]. Physics is sometimes said to be the "fundamental science", because each of the other [[natur...
26: ...m]], [[Torque]], [[Conservation law]], [[Harmonic oscillator]], [[Wave]], [[Mechanical work|Work]], [[Power (p...
38: ...t]], [[Quantum entanglement]], [[Quantum harmonic oscillator]], [[Wavefunction]], [[Zero-point energy]]
47: ...y [[solid]]s and [[liquid]]s we encounter in everyday life, arise from the properties and mutual inter...
64: | [[Standard Model]], [[Grand unification theory]], [[M-theo... - Global Positioning System (28209 bytes)
10: ... satellites' onboard atomic clocks, and uploading data for transmission by the satellites.
20: Each satellite circles the Earth twice every day at an altitude of 20,200 [[kilometre]]s (12,600 ...
23: ...ocations from their radio signals and an internal database.
39: ... only for military use. The keys are changed on a daily basis. In spite of not having the P(Y) code en...
44: ...ts to a discrepancy of around 38 microseconds per day, which is corrected by electronics on each satel...
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