A water wave analogue of the Casimir effect. Two parallel plates are submerged into colored water contained in a sonicator. When the sonicator is turned on, waves are excited imitating vacuum fluctuations; as a result, the plates attract each other.
casimir.jpg (342×1284 The dynamical Casimir effect is the production of particles and energy from an accelerated moving mirror. This reaction was predicted by certain numerical solutions to quantum mechanics equations made in the 1970s.
In quantum field theory, the Casimir effect and the Casimir-Polder force are physical forces arising from a quantized field. Description from andersoninstitute.com. I searched for this on bing.com/images