List of All Science Formulas

All Science Formulas List

Drake Equation

Formula:

N = R * fp * ne * fl * fi * fc * L


Where,

N = Number of Communicative Civilizations
R = Rate of Formation of Suitable Stars (Stars Such as Our Sun)
fp = Fraction of those Stars with Planets. (Current evidence indicates that planetary systems may be common for stars like the Sun.)
ne = Number of Earth-like Worlds per Planetary System
fl = Fraction of those Earth-like Planets (where Life actually develops)
fi = Fraction of Life Sites (where intelligence develops)
fc = Fraction of Communicative Planets (those on which electromagnetic communications technology develops)
L = Lifetime of Communicating Civilizations

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Sundial Angle

Formula:

Sundial Angle = tan-1(sin(l)×tan(15×t))


Where,

l = Latitude
t = Hours

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Wood Log Weight

Formula:

Estimated Log Weight = A x (A x (B x 0.5454)) / 100 x C


Where,

A = Log Diameter in Inches
B = Log Length in Feet
C = Type of Wood Value

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Smeed's Law

Formula:

D = 0.0003 × (n × p2)(1 / 3)


Where,

n = Number of Registered Vehicles
p = Population
D = Annual Road Deaths

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