Reading Magnifier, 60mm, 15cm Focal Length Gifts_Kitchen well suited to exciting standing-wave

well suited to exciting standing-wave oscillations in a Kundt's tube setup

Adjustable locking hook positions items 110 mm from the support rod on this suspension clamp

Used to draw electrons from glass and ebonite rods during rubbing

Chrome-plated 100mm alternate-model reading magnifier with a 15cm focal length

All-metal dynamic trolley pair with integrated spring plunger triggers

Reading Magnifier, 60mm, 15cm Focal Length Gifts_Kitchen well suited to exciting standing-waveMid range 60mm reading magnifier with a 15cm focal length, balancing magnification strength against field of view for general reading, specimen inspection, and convex lens optics demos.