. Popular electricity magazine in plain English. utland, this point beinga dangerous one for mariners onaccount of bad weather, andheavy seas. Ships in great num-bers pass this point in going fromthe North to the Baltic Sea. The set of lenses is quite acomplicated one, and the wholeis mounted on a platform so asto rotate bodily around the cen-tral arc lamp and thus produce asuccession of flashes. At one sidewill be seen the powerful arc lampwith its regulating mech-anism, which is hereremoved from its posi-tion inside the is naturally a difficultmatter to rotate sucha heavy body as t
. Popular electricity magazine in plain English. utland, this point beinga dangerous one for mariners onaccount of bad weather, andheavy seas. Ships in great num-bers pass this point in going fromthe North to the Baltic Sea. The set of lenses is quite acomplicated one, and the wholeis mounted on a platform so asto rotate bodily around the cen-tral arc lamp and thus produce asuccession of flashes. At one sidewill be seen the powerful arc lampwith its regulating mech-anism, which is hereremoved from its posi-tion inside the is naturally a difficultmatter to rotate sucha heavy body as theplatform with the it is mounted on aset of rollers so as toturn around, but in othercases the problem is Lantern of the Hantsholm Lightin Denmark in which the Lamp isan Electric Arc POPULAR ELECTRICITY and the WORLDS ADVANCE 1241 solved by using a ring shaped floatunder the table and this is made tofloat in a circular mercury trough so thatthe mercury takes all the weight of thetable and allows it to turn with verylittle Showing Um In- terior Construction ;;V, O , f^~.\ • >? of the Beaohv Head Lighthouse in Bug* land and the Ar-nngement of tho Lenses 1242 POPULAR ELECTRICITY and the WORLDS ADVANCE
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectelectri, bookyear1912
