Reading Magnifier, 100mm, 15cm Focal Length, Alternate Model Item Type_Animal Model Eight-bucket-blade rotor in a 50

Eight-bucket-blade rotor in a 50 by 50 by 25mm block chamber with a clear Perspex front

Element-stamped 20mm solid tin cube marked (Sn)

Primary-level electricity kit for six students with connecting leads

The wavelength can be changed with the help of variation in frequency & stress generated using different weights on the one end of rope/thread

Reading Magnifier, 100mm, 15cm Focal Length, Alternate Model Item Type_Animal Model Eight-bucket-blade rotor in a 50Chrome plated 100mm alternate model reading magnifier with a 15cm focal length, the broader lens capturing more page area while supporting general magnification for reading.