Virtual Particles Revisited

Note to self, virtual particles have in fact been confirmed, via the Casimer Effect (see PhysicsWorld's The Casimir effect: a force from nothing, 2002).

In this "effect" we find verification of the probabilistic nature of the quantum world. Particles simply pop into existence, and then back out of existence. Proven.

While the Casimir effect is a label for a force which exist at a quantum level I wonder if the Casimir effect could be sensed, or even manipulated, at a larger classical scale.

If the Casimir effect could be verified at a cosmic scale then that discovery could be used to support the argument that what happens at the quantum scale continues in fractal fashion into the classical large scale world.

I'm sure I'm not the first person to ask this question, and my next step is to search around on the net to see if any research has been done to see if the Casimir effect has been detected on a classical scale - perhaps with low frequency large wavelength electromagnetic waves, or if the Casimir effect could play a role in the discussion of dark matter and dark energy.