1 edition of paper on the deflection of the needle of a delicate galvanometer, producede by the action of the solar rays through the medium of the helix found in the catalog.
paper on the deflection of the needle of a delicate galvanometer, producede by the action of the solar rays through the medium of the helix
|Other titles||A paper on sun light transformed into electricity and producing deflection of the needle of the galvanometer.|
|Statement||by John Goodman ....|
|The Physical Object|
|Pagination||8 p. ;|
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