Formula
The acceleration gradient for a linear plasma wave is:
In this equation, is the electric field, is the speed of light in vacuum, is the mass of the electron, is the plasma density (in particles per cube metre), and is the permittivity of free space.
Read more about this topic: Plasma Acceleration
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“Every formula which expresses a law of nature is a hymn of praise to God.”
—Maria Mitchell (1818–1889)
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—Pierre Simon De Laplace (1749–1827)
“My formula for greatness in human beings is amor fati: that one wants to change nothing, neither forwards, nor backwards, nor in all eternity. Not merely to endure necessity, still less to hide it—all idealism is mendacity in the face of necessity—but rather to love it.”
—Friedrich Nietzsche (1844–1900)