Bizhan Rahimzadeh has written:

'Design of a cross-correlator for process measurements'

T. F. Nip has written:

'Simulation of a modified polarity coincidence correlator'

Abdulrassoul S. Mahdi has written:

'Application of a microprocessor-based correlator to laser doppler velocimetry'

Nigel Ross Price has written:

'A radio astronomy correlator using the electro-optic effect'

Questions asked about optical illusions;

1: What are optical illusions?

2: What types of optical illusions are there?

3: What effects do optical illusions have on the brain

4: What causes optical illusions?