Pituitary Gland and Hypothalamus Model, Greatly Enlarged Science at Home Large-format Boyle's Law apparatus with

Large-format Boyle's Law apparatus with hand pump

relating photon frequency to the kinetic energy of emitted electrons for quantum physics investigations

Small 4-inch solar cell on a 4mm-terminal panel

Rotary-knob resistance substitution board offering twelve discrete values from 33 ohms to 10M ohms with 4mm lead connections

and 4-pole armature configurations on the same motor frame by swapping interchangeable enameled-copper armatures past a permanent bar magnet on a disc commutator

Pituitary Gland and Hypothalamus Model, Greatly Enlarged Science at Home Large-format Boyle's Law apparatus withGreatly enlarged pituitary hypothalamus complex exposes the anterior and posterior lobes with connecting infundibulum for endocrine anatomy and physiology teaching.