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  2. Variations in traffic light operation - Wikipedia

    en.wikipedia.org/wiki/Variations_in_traffic...

    A flashing red ball signal on a "protected" left turn traffic signal indicates that left turning traffic may, after a full stop, complete their turn if and only if there is a long enough break in oncoming traffic. The flashing red usually occurs when the oncoming traffic has a green signal.

  3. Traffic light - Wikipedia

    en.wikipedia.org/wiki/Traffic_light

    Instead, the normal green lamp flashes rapidly, indicating permission to go straight as well as make a left turn in front of opposing traffic, which is being held by a steady red lamp. This "advance green", or flashing green can be somewhat startling and confusing to drivers not familiar with this system.

  4. Automotive lighting - Wikipedia

    en.wikipedia.org/wiki/Automotive_lighting

    The emergency stop signal is automatically activated if the vehicle speed is greater than 50 km/h (31 mph) and the emergency braking logic defined by regulation No. 13 (heavy vehicles), 13H (light vehicles), or 78 (motorcycles) is activated; the ESS may be displayed when a light vehicle's deceleration is greater than 6 m/s 2 (20 ft/s 2) or a ...

  5. Media control symbols - Wikipedia

    en.wikipedia.org/wiki/Media_control_symbols

    To identify the switch or switch position by which a faster than normal run (e.g. of tape) is started in the indicated direction. Fast forward: U+23E9 ⏩ #5108B Fast run; fast speed: To identify the switch or switch position by which a faster than normal run (e.g. of tape) is started in the indicated direction.

  6. Check engine light - Wikipedia

    en.wikipedia.org/wiki/Check_engine_light

    A check engine light or malfunction indicator lamp (MIL), is a tell-tale that a computerized engine-management system uses to indicate a malfunction or problem with the vehicle ranging from minor (such as a loose gas cap) to serious (worn spark plugs, engine problems or a faulty oil valve, etc.).

  7. Latest inflation data gives a ‘bright green light’ for a rate cut

    www.aol.com/fed-preferred-inflation-gauge-did...

    Economists had fully anticipated the index would move higher due to “base effects,” because July’s data would be compared with a year-ago period that showed faster-than-usual disinflation.

  8. What Causes a Crypto Flash Crash? Sometimes, Business as Usual

    www.aol.com/news/causes-crypto-flash-crash...

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  9. Hertz - Wikipedia

    en.wikipedia.org/wiki/Hertz

    The hertz is defined as one per second for periodic events. The International Committee for Weights and Measures defined the second as "the duration of 9 192 631 770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium-133 atom" [3] [4] and then adds: "It follows that the hyperfine splitting in the ground state of the ...