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  2. Duramax I4 engine - Wikipedia

    en.wikipedia.org/wiki/Duramax_I4_engine

    The Duramax I4 engine is a family of turbocharged diesel I4 engines sold by General Motors in 2.5 and 2.8 liter sizes as an option for the Chevrolet Colorado, GMC Canyon, Chevrolet Express, and GMC Savana in southeast Asia and Oceania (Australia / New Zealand) from 2012, and in North America from 2016 through 2022.

  3. Indicator diagram - Wikipedia

    en.wikipedia.org/wiki/Indicator_diagram

    An indicator diagram is a chart used to measure the thermal, or cylinder, performance of reciprocating steam and internal combustion engines and compressors. [1] An indicator chart records the pressure in the cylinder versus the volume swept by the piston, throughout the two or four strokes of the piston which constitute the engine, or ...

  4. Power-to-weight ratio - Wikipedia

    en.wikipedia.org/wiki/Power-to-weight_ratio

    The power-to-weight ratio (specific power) is defined as the power generated by the engine(s) divided by the mass. In this context, the term "weight" can be considered a misnomer, as it colloquially refers to mass.

  5. Cobweb plot - Wikipedia

    en.wikipedia.org/wiki/Cobweb_plot

    An animated cobweb diagram of the logistic map = (), showing chaotic behaviour for most values of >. A cobweb plot , known also as Lémeray Diagram or Verhulst diagram is a visual tool used in the dynamical systems field of mathematics to investigate the qualitative behaviour of one-dimensional iterated functions , such as the logistic map .

  6. Tōkaidō Main Line - Wikipedia

    en.wikipedia.org/wiki/Tōkaidō_Main_Line

    Between Ōgaki and Sekigahara, there is a 25 per mil grade. In 1944, a single track bypass (in brown on the diagram) was built to avoid this steep slope of the main line. The old section, informally referred to as the "Shin-Tarui Line", remains largely unused, and Shin-Tarui Station was closed in 1986.

  7. High-speed rail - Wikipedia

    en.wikipedia.org/wiki/High-speed_rail

    After the introduction of the TGV on some routes, air traffic on these routes decreased and in some cases disappeared. [31] The TGV set a publicised speed records in 1981 at 380 km/h (240 mph), in 1990 at 515 km/h (320 mph), and then in 2007 at 574.8 km/h (357.2 mph), although these were test speeds, rather than operation train speeds.

  8. Tyrannosaurus - Wikipedia

    en.wikipedia.org/wiki/Tyrannosaurus

    Chart of the time-averaged census for large-bodied dinosaurs from the entire Hell Creek Formation in the study area According to studies published in 2021 by Charles Marshall et al., the total population of adult Tyrannosaurus at any given time was perhaps 20,000 individuals, with computer estimations also suggesting a total population no lower ...

  9. Science - Wikipedia

    en.wikipedia.org/wiki/Science

    Science is a systematic discipline that builds and organises knowledge in the form of testable hypotheses and predictions about the universe. [1] [2] Modern science is typically divided into two or three major branches: [3] the natural sciences (e.g., physics, chemistry, and biology), which study the physical world; and the social sciences (e.g., economics, psychology, and sociology), which ...