• Thematic focus: ..
• Directions of sound
•   Determining differences in time for sound  to propagate to left and right ears
•   Effect of linear distortions on cavity resonance
• Contents: ..
• 1 Stethoscope
• 2 Spare earpieces
• 1 Tube, 1 m
• 2 Tubes, 0.5 m
• 2 Toothpicks

Product Information: ..
Equipment set for investigation of directionality of sound and determining differences in time for sound to propagate to left and right ears by generation of knocking sounds in a closed tube. The effect of linear distortions on the directionality of cavity resonance can also be investigated by dipping two ends of a tube, at the same time or in alternation, into a beaker which is either empty or half-filled with water. The set consists of a stethoscope with various tubes and a plastic beaker in a rugged plastic case with foam inlays in the shape of the apparatus and a transparent lid.