ate cemented to the center of the glass. posite edge of the baseboard is connected with the pivot When a conductor is laid across the compass, parallel of the switch arm, E. with the needle, and a current is sent through the con- The contact springs are designed to make connections ductor, the… … and just prior to closing it. The door is made princi- the discovery of Oersted, Another curious discovery, due to the same great pally of steel and iron plates bolted together and rab- physicist, is that of the mutual attraction and repulsion Sch weigger found that the power of the current over…
Internet Archive · Public domain (published before 1931). Free to use for anything.
