Description

and wood bobs on separate strings to a 42

forced oscillation

this Wimshurst generator builds a visible high-voltage spark

iron filings

Reading Magnifier, 60mm, 20cm Focal Length Material_Acrylic and wood bobs on separateChrome plated 60mm reading magnifier extending to a 20cm focal length, the longer focal distance lowering magnification but broadening the visible area on a single page.

Exchange/Return Notes

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Reading Magnifier, 60mm, 20cm Focal Length Material_Acrylic and wood bobs on separate

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