Green Diffraction Laser, optional accessory for the Diffraction Apparatus, Operating at 532 nm, it allows students to see and measure how diffraction patterns depend on light wavelength
Proportions of the dura mater, natural size, made in somso-plast*, showing the proportions of the dura mater and the sinus. the 12 pairs of cranial nerves and the basilar artery with branchings are exposed. on a green base, in 2 parts. height: 23 cm, width: 18cm, depth: 21cm, weight: 900g