The Astrophysical journal . Fig. Fig. 3. 336 KNUT ANGSTROM P. This, which is shown in Fig. 3 (two thirds natural size),carries the binding screw Aj for conduction to the strips, and thebinding screw K^ for the thcrmo-element, as well as a smallcommutator C, in order to throw the current from the one tothe other strip. 3. Concerning the constants of tJie apparatus, the width of thestrips was already determined on cutting them with the dividingmachine. In order to control these widths, after completing afew instruments, I again measured these widths with the divid-ing machine. This gave, for
The Astrophysical journal . Fig. Fig. 3. 336 KNUT ANGSTROM P. This, which is shown in Fig. 3 (two thirds natural size),carries the binding screw Aj for conduction to the strips, and thebinding screw K^ for the thcrmo-element, as well as a smallcommutator C, in order to throw the current from the one tothe other strip. 3. Concerning the constants of tJie apparatus, the width of thestrips was already determined on cutting them with the dividingmachine. In order to control these widths, after completing afew instruments, I again measured these widths with the divid-ing machine. This gave, for example, for the instrument No. 2used below, in place of the desired width of 2 mm, the followingvalues : Right strip Left strip : mm mm ^•s- Mean Since the coating with lampblack leaves the edges a triflerough, an error of in the measures of the width evi-dently cannot be avoided, which in the width of the strips hereused may make an error of per cent, in the final value. In order
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectspectru, bookyear1895
