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@@ -1,50 +1,51 @@
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### Dimensions
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-dimension length
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-dimension area = length^2
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-dimension volume = length^3
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-
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-dimension time
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-dimension frequency = time^-1
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-dimension speed = length / time
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-dimension acceleration = length / time^2
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-
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-dimension mass
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-dimension momentum = mass * speed
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-dimension force = mass * acceleration = momentum / time
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-dimension energy = momentum^2 / mass = mass * speed^2 = force * length
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-dimension power = energy / time = force * speed
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-dimension pressure = force / area = energy / volume
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-dimension action = energy * time
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-
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-dimension current
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-dimension charge = current * time
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-dimension voltage = energy / charge = power / current
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-dimension capacitance = charge / voltage
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-dimension resistance = voltage / current
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+dimension Length
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+dimension Area = Length^2
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+dimension Volume = Length^3
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+
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+dimension Time
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+dimension Frequency = Time^-1
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+dimension Speed = Length / Time
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+dimension Acceleration = Length / Time^2
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+
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+dimension Mass
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+dimension Momentum = Mass * Speed
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+dimension Force = Mass * Acceleration = Momentum / Time
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+dimension Energy = Momentum^2 / Mass = Mass * Speed^2 = Force * Length
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+dimension Power = Energy / Time = Force * Speed
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+dimension Pressure = Force / Area = Energy / Volume
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+dimension Action = Energy * Time
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+dimension MassDensity = Mass / Length^3
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+
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+dimension Current
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+dimension Charge = Current * Time
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+dimension Voltage = Energy / Charge = Power / Current
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+dimension Capacitance = Charge / Voltage
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+dimension Resistance = Voltage / Current
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+
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### SI Units
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-unit meter: length
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-unit second: time
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-unit kilogram: mass
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+unit meter: Length
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+unit second: Time
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+unit kilogram: Mass
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-unit hertz: frequency = 1 / second
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-unit newton: force = kilogram * meter / second^2
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-unit joule: energy = newton * meter
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-unit watt: power = joule / second
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-unit pascal: pressure = newton / meter^2
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+unit hertz: Frequency = 1 / second
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+unit newton: Force = kilogram * meter / second^2
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+unit joule: Energy = newton * meter
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+unit watt: Power = joule / second
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+unit pascal: Pressure = newton / meter^2
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-unit ampere: current
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-unit coulomb: charge = ampere * second
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-unit volt: voltage = kilogram * meter^2 / (second^3 * ampere)
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-unit farad: capacitance = coulomb / volt
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-unit ohm: resistance = volt / ampere
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+unit ampere: Current
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+unit coulomb: Charge = ampere * second
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+unit volt: Voltage = kilogram * meter^2 / (second^3 * ampere)
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+unit farad: Capacitance = coulomb / volt
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+unit ohm: Resistance = volt / ampere
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### Imperial units
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-# unit foot: length = 0.3048 * meter
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-
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+unit foot: Length = 0.3048 * meter
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### Mathematical constants
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David Peter