Graduated Screen for Optical Bench Coating_Vinyl and inner ear sections support

and inner ear sections support detailed auditory anatomy teaching at 3x enlargement for classroom visibility

filled with iron filings whose alignment renders 3D field lines around any bar magnet up to 0

Built for drop-precision dispensing

Hand microtome produces thin specimen sections for microscope slide preparation in botany

a distinctive density reference against the lighter aluminum and heavier steel cylinders

Graduated Screen for Optical Bench Coating_Vinyl and inner ear sections supportGraduated white screen mounted for use on the optical bench, providing a measurable projection surface for sizing real images formed by lenses and concave mirrors.