length x length x length = volume

The Planck relation[1][2][3] 

Which is not Ev = MC^2

or

1 / C^2 = Mass / EVolts

or

C^2 = Evolts / mass

or

Area = Ev / Weight of water comp

or

Weight of Water value = EV / Area

or 

1 / Speed X thing = thing X Weight of Water / EV

when thing <> Water

ELSE

THING = WATER

Water = Thing

Referred to repeatedly as:

 Planck's energy–frequency relation

 Planck–Einstein relation

 Planck equation

 Planck formula

 Planck's law 

not so much as

1240 = 155 electron volts X 8 nm

Using 186624 feet per second per second as the benchmark for movement

is a fundamental equation in quantum mechanics which states:

 that the photon energy E

 is proportional to

 the photon frequency ν (or f):

The constant of proportionality, h,

 is known as the Planck constant. 

The Planc Constant multiplied by the imagined speed of photons measured

in eV as electron Volts the imagined energy component of motion in circles

E = hν = hf 

Several equivalent forms of the relation exist, including in terms of angular frequency ω: 

E = ℏ ω

 where the reduced Planck constant is 

ℏ = h / 2π

hbar =h/2pi 

The relation accounts for the quantized nature of light and plays a key role in understanding phenomena such as the photoelectric effect and black-body radiation (where the related Planck postulate can be used to derive Planck's law).

Photon energy

The Planck relation connects the particular photon energy E with its associated wave frequency f:$${\displaystyle E=hf.}$$This energy is extremely small in terms of ordinarily perceived everyday objects.

Since the frequency f, wavelength λ, and speed of light c

 are related by ${\displaystyle f=\frac{c}{\lambda }}$, the relation can also be expressed as

                    and C = λ / f

                    and λ = C / f
$${\displaystyle E=\frac{hc}{\lambda }.}$$

      and 

   

C = E

λ  / h 

and 

    h  = C / Eλ 

de Broglie wavelength

In 1923, Louis de Broglie generalized the Planck–Einstein relation by postulating that the Planck constant represents the proportionality between the momentum and the quantum wavelength of not just the photon, but the quantum wavelength of any particle. This was confirmed by experiments soon afterward. This holds throughout the quantum theory, including electrodynamics. The de Broglie wavelength λ of the particle is given by$${\displaystyle \lambda =\frac{h}{p},}$$where p denotes the linear momentum of a particle, such as a photon, or any other elementary particle.

The energy of a photon with angular frequency ω = 2πf is given by$${\displaystyle E=\hslash \omega ,}$$while its linear momentum relates to$${\displaystyle p=\hslash k,}$$where k is an angular wavenumber.