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  2. Mental chronometry - Wikipedia

    en.wikipedia.org/wiki/Mental_chronometry

    Mean RT for college-age individuals is about 160 milliseconds to detect an auditory stimulus, and approximately 190 milliseconds to detect visual stimulus. [ 29 ] [ 43 ] The mean RTs for sprinters at the Beijing Olympics were 166 ms for males and 169 ms for females, but in one out of 1,000 starts they can achieve 109 ms and 121 ms, respectively ...

  3. Orders of magnitude (time) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(time)

    An order of magnitude of time is usually a decimal prefix or decimal order-of-magnitude quantity together with a base unit of time, like a microsecond or a million years.In some cases, the order of magnitude may be implied (usually 1), like a "second" or "year".

  4. Wikipedia:To scale charts - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:To_scale_charts

    Now look at the following ratio scale chart, where the scale starts at zero. The visual difference between the bars representing cats and dogs is much less noticeable. This because the ratio scale chart shows the entire range of data. US Pet ownership for 2011-2012 using a ratio scale. Data from Humane Society of the United States.

  5. Smith chart - Wikipedia

    en.wikipedia.org/wiki/Smith_chart

    The Smith chart (sometimes also called Smith diagram, Mizuhashi chart (水橋チャート), Mizuhashi–Smith chart (水橋スミスチャート), [1] [2] [3] Volpert–Smith chart (Диаграмма Вольперта—Смита) [4] [5] or Mizuhashi–Volpert–Smith chart) is a graphical calculator or nomogram designed for electrical and electronics engineers specializing in radio ...

  6. Unit of time - Wikipedia

    en.wikipedia.org/wiki/Unit_of_time

    millisecond: 10 −3 s: One thousandth of a second. Shortest time unit used on stopwatches. jiffy (electronics) ~ 10 −3 s: Used to measure the time between alternating power cycles. Also a casual term for a short period of time. centisecond: 10 −2 s: One hundredth of a second. decisecond: 10 −1 s: One tenth of a second. second: 1 s: SI ...

  7. Orders of magnitude (frequency) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude...

    Rotational period of one of the fastest known millisecond pulsars, PSR J1748−2446ad [4] 10 3: 1 kilohertz (kHz) 1 kHz: Usual frequency of a bleep censor: 4.186 kHz: Acoustic – the highest musical note (C 8) playable on a normally-tuned standard piano 8 kHz: ISDN sampling rate 10 4: 10 kHz 14 kHz

  8. List of intervals in 5-limit just intonation - Wikipedia

    en.wikipedia.org/wiki/List_of_intervals_in_5...

    That is, the notes of the major triad are in the ratio 1:5/4:3/2 or 4:5:6. In all tunings, the major third is equivalent to two major seconds. However, because just intonation does not allow the irrational ratio of √ 5 /2, two different frequency ratios are used: the major tone (9/8) and the minor tone (10/9).

  9. Spectral efficiency - Wikipedia

    en.wikipedia.org/wiki/Spectral_efficiency

    The link spectral efficiency of a digital communication system is measured in bit/s/Hz, [2] or, less frequently but unambiguously, in (bit/s)/Hz.It is the net bit rate (useful information rate excluding error-correcting codes) or maximum throughput divided by the bandwidth in hertz of a communication channel or a data link.