implemented synodicmonth and jovianyear

Kernel/dimensions.wl

@@ -98,8 +98,8 @@ Measure /: Subtract[a_,Measure[v_,d1,u_]] := Measure[a-v,d1,u]
 Measure /: Times[Measure[v1_,d1_,u_],Measure[v2_,d2_,u_]] := Measure[v1*v2,d1*d2,u]
 Measure /: Divide[Measure[v1_,d1_,u_],Measure[v2_,d2_,u_]] := Measure[v1/v2,d1/d2,u]
 Measure /: Power[Measure[v_,d_,u_],b_] := Measure[v^b,d^b,u]
-Measure /: Plus[Measure[v1_,d1_,u_],Measure[v2_,d2_,u_]] := Measure[v1+v2,d1+d2,u]
-Measure /: Subtract[Measure[v1_,d1_,u_],Measure[v2_,d2_,u_]] := Measure[v1-v2,d1-d2,u]
+Measure /: Plus[Measure[v1_,d_,u_],Measure[v2_,d_,u_]] := Measure[v1+v2,d,u]
+Measure /: Subtract[Measure[v1_,d_,u_],Measure[v2_,d_,u_]] := Measure[v1-v2,d,u]
 Measure /: Sqrt[Measure[v_,d_,u_]] := Measure[Sqrt[v],Sqrt[d],u]
 
 Measure /: Equal[Measure[v_,USQ[l_,c_],u_],a_] := And[Total[l]==0,a==v*c]

Kernel/physics.wl

@@ -131,7 +131,7 @@ AngularMomentum[u_UnitSystem, s_UnitSystem] := Unit[Momentum[u, s] Length[u, s]
 ForceOnsetRate[u_UnitSystem, s_UnitSystem] := Unit[Mass[u, s] Jerk[u, s]];
 MassPerArea[u_UnitSystem, s_UnitSystem] := Unit[Mass[u, s]/Area[u, s]];
 MassDensity[u_UnitSystem, s_UnitSystem] := Unit[Mass[u, s]/Volume[u, s]];
-SpecificWeight[u_UnitSystem, s_UnitSystem] := Unit[Pressure[u, s]/Speed[u, s]^2];
+SpecificWeight[u_UnitSystem, s_UnitSystem] := Unit[Force[u, s]/Volume[u, s]];
 SpecificVolume[u_UnitSystem, s_UnitSystem] := Unit[Volume[u, s]/Mass[u, s]];
 Action[u_UnitSystem, s_UnitSystem] := Unit[Energy[u, s] Time[u, s]];
 (*Stiffness[u_UnitSystem, s_UnitSystem] := Unit[Force[u, s]/Length[u, s]];*)
@@ -258,7 +258,7 @@ Map[(#[u_UnitSystem] := #[u, Universe[u]]) &, {CosmologicalConstant, AvogadroCon
 AvogadroConstant[u_UnitSystem, c_Coupling] := MolarMassConstant[u, c] ElectronRelativeAtomicMass[c]/ElectronMass[u, c];
 AtomicMassConstant[u_UnitSystem, c_Coupling] := ElectronMass[u, c]/ElectronRelativeAtomicMass[c];
 ProtonMass[u_UnitSystem, c_Coupling] := ProtonElectronMassRatio[c] ElectronMass[u, c];
-GaussianGravitationalConstant[u_UnitSystem, c_Couling] = Sqrt[GravitationalConstant[u,c]]
+GaussianGravitationalConstant[u_UnitSystem, c_Couling] = Measure[MM@Sqrt[GravitationalConstant[u,c]],dA/dT,"IAU"][u]
 EinsteinConstantSpeedOfLightSquared[u_UnitSystem, c_Coupling] := (2 Spat[u] GravitationalConstant[u, c])/SpeedOfLight[u, c]^2;
 EinsteinConstantSpeedOfLightToTheFourth[u_UnitSystem, c_Coupling] := (2 Spat[u] GravitationalConstant[u, c])/SpeedOfLight[u, c]^4;
 MolarGasConstant[u_UnitSystem, c_Coupling] := BoltzmannConstant[u, c] AvogadroConstant[u, c];

Kernel/standards.wl

@@ -78,6 +78,13 @@ StandardUnits = <|
 "Hour" -> Measure[60^2,dT,"Metric"],
 "Day" -> Measure[1,dT,"IAU"],
 "RadarMile" -> Measure[2,dL,"Nautical"]/SpeedOfLight["Nautical"],
+"ips" -> Measure[1,dL/dT,"IPS"],
+"fps" -> Measure[1,dL/dT,"British"],
+"fpm" -> Measure[1,dL/dT,"British"],
+"ms" -> Measure[1,dL/dT,"Metric"],
+"kmh" -> Measure[1,dL/dT,"KKH"],
+"mph" -> Measure[1,dL/dT,"MPH"],
+"knot" -> Measure[1,dL/dT,"Nautical"],
 "Barn" -> Measure[10^-28,dL^2,"Metric"],
 "Hectare" -> Measure[Pre["hecto"] Pre["hecto"],dL^2,"Metric"],
 "Acre" -> Measure[2^-7/5,dL^2,"MPH"],
@@ -173,7 +180,8 @@ StandardUnits = <|
 "FootLambert" -> Measure[1/Pi,USQ[Luminance],"English"],
 "Bril" -> Measure[Pre["centi"] Pre["nano"]/Pi,USQ[Luminance],"Gauss"],
 "Hertz" -> Measure[1,d1/dT,"Metric"],
-"RPM" -> Measure[1/60,d1/dT,"Metric"],
+"APM" -> Measure[1/60,d1/dT,"Metric"],
+"RPM" -> Measure[Pi/30,d1/dT,"Metric"],
 "Galileo" -> Measure[1,USQ[SpecificForce],"Gauss"],
 "Eotvos" -> Measure[Pre["nano"],USQ[SpecificForce]/dL,"Gauss"],
 "Poise" -> Measure[1,USQ[DynamicViscosity],"Gauss"],

Project.toml

@@ -1,7 +1,7 @@
 name = "UnitSystems"
 uuid = "3a241a3c-2137-41aa-af5e-1388e404ca09"
 authors = ["Michael Reed"]
-version = "0.3.4"
+version = "0.3.5"
 
 [deps]
 LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"

README.md

@@ -49,7 +49,7 @@ additional constants `molarmass`, `luminousefficacy`, `gravity`, `angle`, `turn`
 
 Physics constant documentation is at https://geophysics.crucialflow.com/dev/constants
 
-Standardized unit/derived quantities are `hyperfine`, `loschmidt`, `wienwavelength`, `wienfrequency`, `mechanicalheat`, `solarmass`, `jupitermass`, `earthmass`, `lunarmass`, `earthradius`, `greatcircle`, `radarmile`, `hubble`, `cosmological`, `radian`, `steradian`, `degree`, `gradian`, `arcminute`, `arcsecond`, `second`, `minute`, `hour`, `day`, `year`, `gaussianyear`, `siderealyear`, `angstrom`, `inch`, `foot`, `surveyfoot`, `yard`, `meter`, `earthmeter`, `mile`, `statutemile`, `meridianmile`, `admiraltymile`, `nauticalmile`, `lunardistance`, `astronomicalunit`, `lightyear`, `parsec`, `barn`, `hectare`, `acre`, `surveyacre`, `liter`, `gallon`, `quart`, `pint`, `cup`, `fluidounce`, `teaspoon`, `tablespoon`, `grain`, `gram`, `earthgram`, `kilogram`, `tonne`, `ton`, `pound`, `ounce`, `slug`, `slinch`, `hyl`, `dyne`, `newton`, `poundal`, `poundforce`, `kilopond`, `psi`, `pascal`, `bar`, `barye`, `technicalatmosphere`, `atmosphere`, `inchmercury`, `torr`, `electronvolt`, `erg`, `joule`, `footpound`, `calorie`, `kilocalorie`, `meancalorie`, `earthcalorie`, `thermalunit`, `gasgallon`, `tontnt`, `watt`, `horsepower`, `horsepowerwatt`, `horsepowermetric`, `electricalhorsepower`, `tonsrefrigeration`, `boilerhorsepower`, `coulomb`, `earthcoulomb`, `ampere`, `volt`, `henry`, `ohm`, `siemens`, `farad`, `weber`, `tesla`, `abcoulomb`, `abampere`, `abvolt`, `abhenry`, `abohm`, `abmho`, `abfarad`, `maxwell`, `gauss`, `oersted`, `gilbert`, `statcoulomb`, `statampere`, `statvolt`, `stathenry`, `statohm`, `statmho`, `statfarad`, `statweber`, `stattesla`, `kelvin`, `rankine`, `celsius`, `fahrenheit`, `sealevel`, `boiling`, `mole`, `earthmole`, `poundmole`, `slugmole`, `slinchmole`, `katal`, `amagat`, `lumen`, `candela`, `lux`, `phot`, `footcandle`, `nit`, `apostilb`, `stilb`, `lambert`, `footlambert`, `bril`, `neper`, `bel`, `decibel`, `hertz`, `rpm`, `kayser`, `diopter`, `bubnoff`, `gforce`, `galileo`, `eotvos`, `darcy`, `poise`, `reyn`, `stokes`, `rayl`, `mpge`, `langley`, `jansky`, `solarflux`, `curie`, `sievert`, `roentgen`, `rem`.
+Standardized unit/derived quantities are `hyperfine`, `loschmidt`, `wienwavelength`, `wienfrequency`, `mechanicalheat`, `solarmass`, `jupitermass`, `earthmass`, `lunarmass`, `earthradius`, `greatcircle`, `radarmile`, `hubble`, `cosmological`, `radian`, `steradian`, `degree`, `gradian`, `arcminute`, `arcsecond`, `second`, `minute`, `hour`, `day`, `gaussianmonth`, `siderealmonth`, `synodicmonth`, `year`, `gaussianyear`, `siderealyear`, `jovianyear`, `angstrom`, `inch`, `foot`, `surveyfoot`, `yard`, `meter`, `earthmeter`, `mile`, `statutemile`, `meridianmile`, `admiraltymile`, `nauticalmile`, `lunardistance`, `astronomicalunit`, `jupiterdistance`, `lightyear`, `parsec`, `bubnoff`, `ips`, `fps`, `fpm`, `ms`, `kmh`, `mph`, `knot`, `mps`, `barn`, `hectare`, `acre`, `surveyacre`, `liter`, `gallon`, `quart`, `pint`, `cup`, `fluidounce`, `teaspoon`, `tablespoon`, `grain`, `gram`, `earthgram`, `kilogram`, `tonne`, `ton`, `pound`, `ounce`, `slug`, `slinch`, `hyl`, `dyne`, `newton`, `poundal`, `poundforce`, `kilopond`, `psi`, `pascal`, `bar`, `barye`, `technicalatmosphere`, `atmosphere`, `inchmercury`, `torr`, `electronvolt`, `erg`, `joule`, `footpound`, `calorie`, `kilocalorie`, `meancalorie`, `earthcalorie`, `thermalunit`, `gasgallon`, `tontnt`, `watt`, `horsepower`, `horsepowerwatt`, `horsepowermetric`, `electricalhorsepower`, `tonsrefrigeration`, `boilerhorsepower`, `coulomb`, `earthcoulomb`, `ampere`, `volt`, `henry`, `ohm`, `siemens`, `farad`, `weber`, `tesla`, `abcoulomb`, `abampere`, `abvolt`, `abhenry`, `abohm`, `abmho`, `abfarad`, `maxwell`, `gauss`, `oersted`, `gilbert`, `statcoulomb`, `statampere`, `statvolt`, `stathenry`, `statohm`, `statmho`, `statfarad`, `statweber`, `stattesla`, `kelvin`, `rankine`, `celsius`, `fahrenheit`, `sealevel`, `boiling`, `mole`, `earthmole`, `poundmole`, `slugmole`, `slinchmole`, `katal`, `amagat`, `lumen`, `candela`, `lux`, `phot`, `footcandle`, `nit`, `apostilb`, `stilb`, `lambert`, `footlambert`, `bril`, `neper`, `bel`, `decibel`, `hertz`, `apm`, `rpm`, `kayser`, `diopter`, `gforce`, `galileo`, `eotvos`, `darcy`, `poise`, `reyn`, `stokes`, `rayl`, `mpge`, `langley`, `jansky`, `solarflux`, `curie`, `sievert`, `roentgen`, `rem`.
 
 Standard physics units are at https://geophysics.crucialflow.com/dev/units
 

src/UnitSystems.jl

@@ -24,10 +24,11 @@ const Constants = (:lightspeed,:planck,:planckreduced,:electronmass,:molarmass,:
 const Physics = (:turn,:spat,:atomicmass,:protonmass,:planckmass,:gravitation,:gaussgravitation,:einstein,:hartree,:rydberg,:bohr,:electronradius,:avogadro,:molargas,:stefan,:radiationdensity,:vacuumpermeability,:vacuumpermittivity,:electrostatic,:magnetostatic,:biotsavart,:elementarycharge,:faraday,:vacuumimpedance,:conductancequantum,:klitzing,:josephson,:magneticfluxquantum,:magneton)
 const Derived = (:hyperfine,:loschmidt,:wienwavelength,:wienfrequency,:mechanicalheat,:solarmass,:jupitermass,:earthmass,:lunarmass,:earthradius,:greatcircle,:radarmile,:hubble,:cosmological,
     :radian,:steradian,:degree,:gradian,:arcminute,:arcsecond,
-    :second,:minute,:hour,:day,:year,:gaussianyear,:siderealyear,
-    :angstrom,:inch,:foot,:surveyfoot,:yard,:meter,:earthmeter,:mile,:statutemile,:meridianmile,:admiraltymile,:nauticalmile,:lunardistance,:astronomicalunit,:lightyear,:parsec,
+    :second,:minute,:hour,:day,:gaussianmonth,:siderealmonth,:synodicmonth,:year,:gaussianyear,:siderealyear,:jovianyear,
+    :angstrom,:inch,:foot,:surveyfoot,:yard,:meter,:earthmeter,:mile,:statutemile,:meridianmile,:admiraltymile,:nauticalmile,:lunardistance,:astronomicalunit,:jupiterdistance,:lightyear,:parsec,
     :barn,:hectare,:acre,:surveyacre,
     :liter,:gallon,:quart,:pint,:cup,:fluidounce,:teaspoon,:tablespoon,
+    :bubnoff,:ips,:fps,:fpm,:ms,:kmh,:mph,:knot,:mps,
     :grain,:gram,:earthgram,:kilogram,:tonne,:ton,:pound,:ounce,:slug,:slinch,:hyl,
     :dyne,:newton,:poundal,:poundforce,:kilopond,
     :psi,:pascal,:bar,:barye,:technicalatmosphere,:atmosphere,:inchmercury,:torr,
@@ -38,8 +39,8 @@ const Derived = (:hyperfine,:loschmidt,:wienwavelength,:wienfrequency,:mechanica
     :statcoulomb,:statampere,:statvolt,:stathenry,:statohm,:statmho,:statfarad,:statweber,:stattesla,
     :kelvin,:rankine,:celsius,:fahrenheit,:sealevel,:boiling,:mole,:earthmole,:poundmole,:slugmole,:slinchmole,:katal,:amagat,
     :lumen,:candela,:lux,:phot,:footcandle,:nit,:apostilb,:stilb,:lambert,:footlambert,:bril,
-    :neper,:bel,:decibel,:hertz,:rpm,
-    :kayser,:diopter,:bubnoff,:gforce,:galileo,:eotvos,:darcy,:poise,:reyn,:stokes,:rayl,
+    :neper,:bel,:decibel,:hertz,:apm,:rpm,
+    :kayser,:diopter,:gforce,:galileo,:eotvos,:darcy,:poise,:reyn,:stokes,:rayl,
     :mpge,:langley,:jansky,:solarflux,:curie,:sievert,:roentgen,:rem)
 const Kinematic = (:solidangle,:time,:length,:area,:volume,:wavenumber,:angularwavenumber,:fuelefficiency,:numberdensity,:frequency,:angularfrequency,:frequencydrift,:speed,:acceleration,:jerk,:snap,:crackle,:pop,:volumeflow) #angle
 const Mechanical = (:inertia,:mass,:massflow,:lineardensity,:areadensity,:density,:specificweight,:specificvolume,:force,:specificforce,:gravityforce,:pressure,:compressibility,:viscosity,:diffusivity,:rotationalinertia,:impulse,:momentum,:angularmomentum,:yank,:energy,:specificenergy,:action,:fluence,:power,:powerdensity,:intensity,:spectralflux,:soundexposure,:impedance,:specificimpedance,:admittance,:compliance,:inertance)
@@ -314,7 +315,8 @@ const RK1990,KJ1990,Rᵤ2014 = Constant(25812.807),Constant(4.835979e14),Constan
 const RK2014,KJ2014 = Constant(25812.8074555),Constant(4.835978525e14)
 const GME,GMJ = Constant(398600441.8e6),Constant(1.26686534e17)
 const kG,H0,ΩΛ = Constant(3548.18761),Constant(67.66),Constant(0.6889)
-const aⱼ,au,LD = Constant(365.25),Constant(149597870.7e3),Constant(384402e3)
+const aⱼ,au = Constant(365.25),Constant(149597870.7e3)
+const LD,JD = Constant(384399e3),Constant(778479e6)
 const zetta,zepto = Constant(1e21),Constant(1e-21)
 const yotta,yocto = Constant(1e24),Constant(1e-24)
 const 𝟏,𝟐,𝟑,𝟓,𝟕,𝟏𝟎,𝟏𝟏,𝟏𝟗,𝟒𝟑,τ,α = Constant(1),Constant(2),Constant(3),Constant(5),Constant(7),Constant(10),Constant(11),Constant(19),Constant(43),Constant(2π),inv(αinv)

src/constant.jl

@@ -40,6 +40,7 @@ Base.:/(a::Number,b::Constant) = a*inv(b)
 Base.:/(a::Constant,b::Number) = a*inv(b)
 Base.inv(a::Constant{D}) where D = Constant{inv(D)}()
 Base.sqrt(a::Constant{D}) where D = Constant{sqrt(D)}()
+Base.cbrt(a::Constant{D}) where D = Constant{cbrt(D)}()
 Base.log(x::Constant{D}) where D = Constant{log(D)}()
 Base.log2(x::Constant{D}) where D = Constant{log2(D)}()
 Base.log10(x::Constant{D}) where D = Constant{log10(D)}()

src/derived.jl

@@ -21,8 +21,8 @@
 @pure arcminute(U::UnitSystem) = degree(U)/two(U)^2/three(U)/five(U)
 @pure arcsecond(U::UnitSystem) = arcminute(U)/two(U)^2/three(U)/five(U)
 
-@pure rpm(U::UnitSystem) = one(U)/minute(U)
-#@pure rpd(U::UnitSystem) = turn(U)/day(U)
+@pure apm(U::UnitSystem) = one(U)/minute(U)
+@pure rpm(U::UnitSystem) = turn(U)/minute(U)
 
 # time
 
@@ -52,7 +52,8 @@
 @pure nauticalmile(U::UnitSystem) = length(one(U),U,Nautical)
 #@pure navigationmile(U::UnitSystem) = greatcircle(U)/two(U)^5/three(U)^3/five(U)^2
 @pure astronomicalunit(U::UnitSystem) = length(𝟏,U,IAU)
-@pure lunardistance(U::UnitSystem) = length(LD,U,Metric)
+@pure lunardistance(U::UnitSystem) = length(𝟏,U,IAUE)
+@pure jupiterdistance(U::UnitSystem) = length(𝟏,U,IAUJ)
 @pure mile(U::UnitSystem) = length(two(U)^5*three(U)*five(U)*eleven(U),U,English)
 @pure admiraltymile(U::UnitSystem) = length(two(U)^6*five(U)*nineteen(U),U,English)
 @pure meridianmile(U::UnitSystem) = length(two(U)^4*five(U)^5/three(U)^3,U,Metric)
@@ -80,6 +81,18 @@
 @pure tablespoon(U::UnitSystem) = three(U)*teaspoon(U)
 #@pure oilbarrel(U::UnitSystem) = two(U)*three(U)*seven(U)*gallon(U)
 
+# speed
+
+@pure bubnoff(U::UnitSystem) = meter(U)/year(U)
+@pure ips(U::UnitSystem) = inch(U)/second(U)
+@pure fps(U::UnitSystem) = foot(U)/second(U)
+@pure fpm(U::UnitSystem) = foot(U)/minute(U)
+@pure ms(U::UnitSystem) = meter(U)/second(U)
+@pure kmh(U::UnitSystem) = kilo(U)*meter(U)/hour(U)
+@pure mph(U::UnitSystem) = mile(U)/hour(U)
+@pure knot(U::UnitSystem) = nauticalmile(U)/hour(U)
+@pure mps(U::UnitSystem) = mile(U)/second(U)
+
 # mass
 
 @pure grain(U::UnitSystem) = milli(U)*pound(U)/seven(U)
@@ -212,7 +225,6 @@
 @pure hertz(U::UnitSystem) = one(U)/second(U)
 @pure kayser(U::UnitSystem) = wavenumber(one(U),U,Gauss)
 @pure diopter(U::UnitSystem) = wavenumber(one(U),U,Metric)
-@pure bubnoff(U::UnitSystem) = meter(U)/year(U)
 @pure gforce(U::UnitSystem) = specificforce(one(U),U,English)
 @pure galileo(U::UnitSystem) = specificforce(one(U),U,Gauss)
 @pure eotvos(U::UnitSystem) = specificforce(nano(U),U,Gauss)/length(one(U),U,Gauss)

src/derivedocs.jl

@@ -428,7 +428,7 @@ $(astronomicalunit(Metric)/lightspeed(Metric))
 """ astronomicalunit, au
 
 @doc """
-$(unitext(:lunardistance,"length($LD,U,Metric)"))
+$(unitext(:lunardistance,"length(𝟏,U,IAUE)"))
 
 Standard distance between the Earth and the Moon (m or ft).
 ```Julia
@@ -443,6 +443,22 @@ $(lunardistance(Metric)/lightspeed(Metric))
 ```
 """ lunardistance, LD
 
+@doc """
+$(unitext(:jupiterdistance,"length(𝟏,U,IAUJ)"))
+
+Standard distance between the Sun and the planet Jupiter (m or ft).
+```Julia
+julia> jupiterdistance(Metric) # m
+$(jupiterdistance(Metric))
+
+julia> jupiterdistance(IAU) # au
+$(jupiterdistance(IAU))
+
+julia> jupiterdistance(Metric)/lightspeed(Metric) # s
+$(jupiterdistance(Metric)/lightspeed(Metric))
+```
+""" jupiterdistance, JD
+
 @doc """
 $(unitext(:mile,"length(𝟏,U,MPH)"))
 
@@ -735,6 +751,146 @@ $(tablespoon(IPS))
 ```
 """ tablespoon
 
+# speed
+
+@doc """
+$(unitext(:bubnoff,"meter(U)/year(U)"))
+
+Reference unit of erosion `speed` (m⋅s⁻¹ or ft⋅s⁻¹).
+```Julia
+julia> bubnoff(CGS) # cm⋅s⁻¹
+$(bubnoff(CGS))
+
+julia> bubnoff(English) # ft⋅s⁻¹
+$(bubnoff(English))
+```
+""" bubnoff
+
+@doc """
+$(unitext(:ips,"inch(U)/second(U)"))
+
+Inch per second unit of `speed` (m⋅s⁻¹ or ft⋅s⁻¹).
+```Julia
+julia> ips(CGS) # cm⋅s⁻¹
+$(ips(CGS))
+
+julia> ips(English) # ft⋅s⁻¹
+$(ips(English))
+```
+""" ips
+
+@doc """
+$(unitext(:fps,"feet(U)/second(U)"))
+
+Feet per second unit of `speed` (m⋅s⁻¹ or ft⋅s⁻¹).
+```Julia
+julia> fps(Metric) # m⋅s⁻¹
+$(fps(Metric))
+
+julia> fps(KKH) # km⋅h⁻¹
+$(fps(KKH))
+
+julia> fps(MPH) # mi⋅h⁻¹
+$(fps(MPH))
+```
+""" fps
+
+@doc """
+$(unitext(:fpm,"feet(U)/minute(U)"))
+
+Feet per minute unit of `speed` (m⋅s⁻¹ or ft⋅s⁻¹).
+```Julia
+julia> fpm(CGS) # cm⋅s⁻¹
+$(fpm(CGS))
+
+julia> fpm(IPS) # in⋅s⁻¹
+$(fpm(IPS))
+
+julia> fpm(English) # ft⋅s⁻¹
+$(fpm(English))
+```
+""" fpm
+
+@doc """
+$(unitext(:ms,"meter(U)/second(U)"))
+
+Meters per second unit of `speed` (m⋅s⁻¹ or ft⋅s⁻¹).
+```Julia
+julia> ms(KKH) # km⋅h⁻¹
+$(ms(KKH))
+
+julia> ms(MPH) # mi⋅h⁻¹
+$(ms(MPH))
+
+julia> ms(Nautical) # nm⋅h⁻¹
+$(ms(Nautical))
+```
+""" ms
+
+@doc """
+$(unitext(:kmh,"kilo(U)*meter(U)/hour(U)"))
+
+Kilometers per hour unit of `speed` (m⋅s⁻¹ or ft⋅s⁻¹).
+```Julia
+julia> kmh(Metric) # m⋅s⁻¹
+$(kmh(Metric))
+
+julia> kmh(MPH) # mi⋅h⁻¹
+$(kmh(MPH))
+
+julia> kmh(Nautical) # nm⋅h⁻¹
+$(kmh(Nautical))
+```
+""" kmh
+
+@doc """
+$(unitext(:mph,"mile(U)/hour(U)"))
+
+Miles per hour unit of `speed` (m⋅s⁻¹ or ft⋅s⁻¹).
+```Julia
+julia> mph(Metric) # m⋅s⁻¹
+$(mph(Metric))
+
+julia> mph(KKH) # km⋅h⁻¹
+$(mph(KKH))
+
+julia> mph(Nautical) # nm⋅h⁻¹
+$(mph(Nautical))
+```
+""" mph
+
+@doc """
+$(unitext(:knot,"nauticalmile(U)/hour(U)"))
+
+Nautical miles per hour unit of `speed` (m⋅s⁻¹ or ft⋅s⁻¹).
+```Julia
+julia> knot(Metric) # m⋅s⁻¹
+$(knot(Metric))
+
+julia> knot(KKH) # km⋅h⁻¹
+$(knot(KKH))
+
+julia> knot(MPH) # mi⋅h⁻¹
+$(knot(MPH))
+```
+""" knot
+
+@doc """
+$(unitext(:mps,"mile(U)/second(U)"))
+
+Miles per second unit of `speed` (m⋅s⁻¹ or ft⋅s⁻¹).
+```Julia
+julia> mps(KKH) # km⋅h⁻¹
+$(mps(KKH))
+
+julia> mps(MPH) # mi⋅h⁻¹
+$(mps(MPH))
+
+julia> mps(Nautical) # nm⋅h⁻¹
+$(mps(Nautical))
+```
+""" mps
+
 # mass
 
 @doc """
@@ -2417,9 +2573,22 @@ $(hertz(IAU))
 """ hertz
 
 @doc """
-$(unitext(:rpm,"𝟏/minute(U)"))
+$(unitext(:apm,"𝟏/minute(U)"))
+
+Actions per minute `apm` unit of `frequency` (s⁻¹).
+```Julia
+julia> apm(MetricEngineering) # s⁻¹
+$(apm(MetricEngineering))
+
+julia> apm(IAU) # D⁻¹
+$(apm(IAU))
+```
+""" apm
+
+@doc """
+$(unitext(:rpm,"turn(U)/minute(U)"))
 
-Engineering unit of `frequency` (s⁻¹).
+Revolutions per minute `rpm` unit of `angularfrequency` (s⁻¹).
 ```Julia
 julia> rpm(MetricEngineering) # rad⋅s⁻¹
 $(rpm(MetricEngineering))
@@ -2461,22 +2630,6 @@ $(diopter(English))
 ```
 """ diopter
 
-@doc """
-$(unitext(:bubnoff,"meter(U)/year(U)"))
-
-Reference unit of erosion `speed` (m⋅s⁻¹ or ft⋅s⁻¹).
-```Julia
-julia> bubnoff(Metric) # m⋅s⁻¹
-$(bubnoff(Metric))
-
-julia> bubnoff(CGS) # cm⋅s⁻¹
-$(bubnoff(CGS))
-
-julia> bubnoff(English) # ft⋅s⁻¹
-$(bubnoff(English))
-```
-""" bubnoff
-
 @doc """
 $(unitext(:gforce,"specificforce(𝟏,U,English)"))