 
Summary: 1
Published as: Aerts, D., 1991, A mechanistic classical laboratory situation violating the Bell
inequalities with 2·2, exactly 'in the same way' as its violations by the EPR experiments, Helv.
Phys. Acta, 64, 123.
A mechanistic classical laboratory situation violating the Bell inequalities
with 2·2, exactly 'in the same way' as its violations by the EPR experiments.
Diederik Aerts,
FUND and CLEA,
Vrije Universiteit Brussel,
Krijgskundestraat 33, 1160, Brussels.
email: diraerts@vub.ac.be
1. Abstract :
We present a macroscopical mechanistic classical laboratory situation, and a classical
macroscopical entity, and coincidence measurements on this entity, that lead to a violation of the
Bell inequalities corresponding to these coincidence measurements. The violation that we obtain
with these coincidence measurements is exactly the same as the violation of the Bell inequalities by
the well known coincidence measurements of the quantum entity of two spin 1/2 particles in a
singlet spin state. With this we mean that it gives rise to the same numerical values for the
expectation values and the same numerical value 2·2 for the expression used in the Bell
inequality. We analyze the origin of the violation, and can formulate the main difference between
