House Fly Longitudinal Section Anatomical Model Subcategory_Pitchers paired with two 50N spring

paired with two 50N spring balances and two wrest pins so students can verify the laws governing frequency

Two 25mm lenses folding out together for 7x combined magnification in a pocket housing

sliding through a full octave from C5 (521Hz) to C6 (1024Hz) for hands-on comparison of length to fundamental frequency

and redistribution during cell division for biology instruction

House Fly Longitudinal Section Anatomical Model Subcategory_Pitchers paired with two 50N springBuilt for insect anatomy study, this house fly longitudinal section reveals dipteran internal structure, digestive system, and arthropod organization for teaching.