Speed of Sound
- Episode aired Jan 7, 1985
- TV-Y
Speed of Sound, Selective Refraction Trick, How Many Stars, Glass Duet, Spelling Checker, After a Forest Fire, Window Oscillation, Asparagus, Finding a Tree's Height.Speed of Sound, Selective Refraction Trick, How Many Stars, Glass Duet, Spelling Checker, After a Forest Fire, Window Oscillation, Asparagus, Finding a Tree's Height.Speed of Sound, Selective Refraction Trick, How Many Stars, Glass Duet, Spelling Checker, After a Forest Fire, Window Oscillation, Asparagus, Finding a Tree's Height.