The Annals of Electricity Magnetism and Chemistry and Guardian of Experimental Science, Band 8 |
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Seite 73
which shews the pores of the skin , will be left behind : even this speck will be so
accurately copied by the galvanic process , that the keenest microscopic
observation can detect no difference from the original . It is well known , that to
obtain ...
which shews the pores of the skin , will be left behind : even this speck will be so
accurately copied by the galvanic process , that the keenest microscopic
observation can detect no difference from the original . It is well known , that to
obtain ...
Seite 74
when the copper of the original is of a good quality . As soon as the galvanic
plate has acquired the requisite thickness , and the parts grown over the edges of
the original are filed away , it springs loose of itself , without any further trouble .
when the copper of the original is of a good quality . As soon as the galvanic
plate has acquired the requisite thickness , and the parts grown over the edges of
the original are filed away , it springs loose of itself , without any further trouble .
Seite 168
For this purpose a sheet of lead is laid over the original engraved copper plate ,
and both passed through a strong rolling press ; the lead is thus pressed into the
engraving , and , when separated , presents a beautiful picture of it in relief .
For this purpose a sheet of lead is laid over the original engraved copper plate ,
and both passed through a strong rolling press ; the lead is thus pressed into the
engraving , and , when separated , presents a beautiful picture of it in relief .
Seite 172
By the galvanoplastik process , notwithstanding the accuracy with which we
procure copies of original objects , we see that on the reverse side of the
galvanoplastik copy the deposited metal assumes a granular appearance , and it
is only ...
By the galvanoplastik process , notwithstanding the accuracy with which we
procure copies of original objects , we see that on the reverse side of the
galvanoplastik copy the deposited metal assumes a granular appearance , and it
is only ...
Seite 173
From a wax embossed bust , en haut relief , and much underworked , I have
obtained a tolerably good galvanoplastik figure , though , it is true , not entirely
free from blemish , in the following manner : - The original wax bust being well
covered ...
From a wax embossed bust , en haut relief , and much underworked , I have
obtained a tolerably good galvanoplastik figure , though , it is true , not entirely
free from blemish , in the following manner : - The original wax bust being well
covered ...
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acid action already animal apparatus appears applied arrangement atmosphere atoms attraction ball battery become bodies camphor carbonic acid cause charged chemical circumstances cloud communication conducting conductor connected consequently considered contained continued copper curve cylinder declination deposited direction discharge distance effect electric fluid employed equal existence experiments extremities fact force former galvanic give given glass gold greater heat immersion inches increase intensity iron known latter lead less light liquid magnetic manner means metal minutes motion movement nature necessary needle negative object observations obtained operation original oxygen pairs pass phenomena piece pile plate poles portion positive present principles produced proportion quantity remains remarkable resistance respect salt separate side silver similar solution substance sufficient suppose surface takes place temperature tion vapour voltaic whole wire zinc