pre-recorded interactive videos, laser disks and CD ROMs featuring computer programs for educational purposes, on the following topics, astronomy, philosophy, genetics, physics, zoology, circular logic, quantum mechanics, biology and meteorology

'astronomi':21 'biolog':30 'cd':9 'circular':26 'comput':12 'disk':7 'educ':15 'featur':11 'follow':19 'genet':23 'interact':4 'laser':6 'logic':27 'mechan':29 'meteorolog':32 'philosophi':22 'physic':24 'pre':2 'pre-record':1 'program':13 'purpos':16 'quantum':28 'record':3 'rom':10 'topic':20 'video':5 'zoolog':25

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