Savart's Toothed Wheel Length_74mm and interference effects

and interference effects

Wood-handled collecting net pairs a sturdy grip with fine mesh netting for classroom field trips and introductory entomology collection work

Integrated tongue and dentition at 2x life size supports combined teaching of oral cavity anatomy

transverse

Greatly magnified transverse dicot stem model on a mounted base exposes vascular bundle arrangement and primary tissue layers for advanced botany teaching

Savart's Toothed Wheel Length_74mm and interference effectsFour 7. 5cm toothed wheels spaced 6mm apart on a common shaft, producing distinct audible pitches at varying spin speeds to relate rotational frequency to perceived sound frequency.