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This short letter reports on an unsuspected and quite surprising connection between capillary forces and dark energy. We start with a very brief introduction of the role played by relativistic hydrodynamics in cosmic dark energy research, and then proceed from there to outline the proposed analogy between dark energy and non-relativistic effects of capillary surface energy.

In numerous previous publications, a fundamental theory was advanced to explain the baffling cosmic observation associated with conjectured dark energy and the surprising measured accelerated rather than decelerating expansion of the universe [^{2}/22 where m is the mass and c is the speed of light, i.e. only 1/22 of Einstein’s famous energy density [^{2 }to a quantum relativity equation

The preceding set theoretical explanation, although mathematically and logically accessible and in some sense even intuitive, cannot be called physically obvious. For instance it is true that we have a clear picture of a particle with a wave as its cobordism, i.e. as its surface. Never the less particles and surfaces although inseparable, cannot be dealt with experimentally except via the contra-intuitive perspective of wave-particle duality [

In the present work we think that we have at long last found a parallel physical interpretation to our set theoretical picture which is in a one to one correspondence with the zero set-empty set particle-wave duality [

The total density parameter is easily deduced from Einstein’s iconical leap of faith and genius E = mc^{2} to be

Never the less the most recent and most accurate cosmological measurements lead us to the unavoidable conclusion that 95.5% of

Let us consider a capillary surface which is something well known in fluid mechanics and in fact from various simple experiments which almost everyone encountered in elementary school physics [^{2}/22 and the theoretical E = mc^{2} is reminiscent of the discrepancy between the theoretical buckling loads of elastic shells and its experimental magnitude which can be less than 1/3 of the theoretical one [

To sum up we could look upon dark energy which is the negative energy of the quantum wave surface of the quantum particle core [

I am in more than one sense indebted to our teacher the late Prof. Dr. Dr. Theodor Lehmann who initiated my serious interest in Einstein’s relativity although we were in a purely applied civil engineering mechanics department at the then Technical High School of Hannover, West Germany in the sixties of the last century. I am also indebted to Prof. J.M.T. Thompson (FRS) for introducing me to the book of H. Dingle “Science At The Crossroads” refuting special relativity though for the wrong reasons as it became obvious here. The discussion with Prof. Thompson also took place in a civil engineering department in University College, London, UK in 1969 with a stability research group which was established by Lord Henry Chilver.