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  2. Solo (dinghy) - Wikipedia

    en.wikipedia.org/wiki/Solo_(dinghy)

    The National Solo class is a racing dinghy designed by Jack Holt in 1956. The Solo is sailed in the United Kingdom , Holland , Portugal and Australia . Originally designed in wood, competitive boats are now widely available in Fibre Reinforced Plastic (FRP) or composite construction (FRP hull and wood deck) as well as wood.

  3. Glider competition classes - Wikipedia

    en.wikipedia.org/wiki/Glider_competition_classes

    Seven glider classes are currently recognised by the FAI and are eligible for European and World Championships: . Open Class, places no restrictions except a limit of 850 kg to the maximum all-up mass, may be one- or two-seater e.g. JS-1C, Lange Antares 23E, Quintus, ASW 22, ASH 30, LAK-20.

  4. Orders of magnitude (mass) - Wikipedia

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

    Speculated approximate lower limit of the mass of a primordial black hole: 1.5 × 10 −8 kg: US RDA for vitamin D for adults [46] ~2 × 10 −8 kg Uncertainty in the mass of the International Prototype of the Kilogram (IPK) (±~20 μg) [47] 2.2 × 10 −8 kg Planck mass, [48] can be expressed as the mass of a 2 Planck Length radius black hole ...

  5. On shell and off shell - Wikipedia

    en.wikipedia.org/wiki/On_shell_and_off_shell

    the mass–energy equivalence formula which gives the energy in terms of the momentum and the rest mass of a particle. The equation for the mass shell is also often written in terms of the four-momentum ; in Einstein notation with metric signature (+,−,−,−) and units where the speed of light c = 1 {\displaystyle c=1} , as p μ p μ ≡ p ...

  6. Exoplanet orbital and physical parameters - Wikipedia

    en.wikipedia.org/wiki/Exoplanet_orbital_and...

    Adding mass beyond this point causes the radius to shrink. [39] [40] [41] Even when taking heat from the star into account, many transiting exoplanets are much larger than expected given their mass, meaning that they have surprisingly low density. [42] See the magnetic field section for one possible explanation. Plots of exoplanet density and ...

  7. Model rocket motor classification - Wikipedia

    en.wikipedia.org/wiki/Model_rocket_motor...

    The designation for a specific motor looks like C6-3.In this example, the letter (C) represents the total impulse range of the motor, the number (6) before the dash represents the average thrust in newtons, and the number (3) after the dash represents the delay in seconds from propelling charge burnout to the firing of the ejection charge (a gas generator composition, usually black powder ...

  8. Multiclass classification - Wikipedia

    en.wikipedia.org/wiki/Multiclass_classification

    In machine learning and statistical classification, multiclass classification or multinomial classification is the problem of classifying instances into one of three or more classes (classifying instances into one of two classes is called binary classification). For example, deciding on whether an image is showing a banana, peach, orange, or an ...

  9. List of set classes - Wikipedia

    en.wikipedia.org/wiki/List_of_set_classes

    This is a list of set classes, by Forte number. [1] A set class (an abbreviation of pitch-class-set class) in music theory is an ascending collection of pitch classes, transposed to begin at zero. For a list of ordered collections, see: list of tone rows and series. Sets are listed with links to their complements. The prime form of ...