The London, Edinburgh and Dublin philosophical magazine and journal of science . ed by charges of the same signrespectively as those in the points A and B, and the emplace-ment to the right may ba due to repulsion of like would be necessary to put a flame under the points and 13G M. W. de Nicolaieve on a New Reaction the mica to take away the charges from the latter and tofacilitate the ionization of the air, but the illness of the authorhas interrupted this experiment. He has made the followingexperiment. A disk of mica K (fig. 6) is suspended excen-trically to one side of the line
The London, Edinburgh and Dublin philosophical magazine and journal of science . ed by charges of the same signrespectively as those in the points A and B, and the emplace-ment to the right may ba due to repulsion of like would be necessary to put a flame under the points and 13G M. W. de Nicolaieve on a New Reaction the mica to take away the charges from the latter and tofacilitate the ionization of the air, but the illness of the authorhas interrupted this experiment. He has made the followingexperiment. A disk of mica K (fig. 6) is suspended excen-trically to one side of the line of two-pointed terminals con-nected to a Holtz machine. When the flame F is lighted thedisk K is displaced to the right by the current of hot when the electric machine is in action, the disk isdisplaced at least twice as much. On the Electrostatic Field round an Electric Current. Apparatus.—In a large glass tube placed vertically are sus-pended two loops, AEC and BFD (fig. 7), parallel to eachother, 4 to 5 mm. apart, and consisting of two strips of tinfoil, Fis\ 3 mm. wide, hanging down to a depth of 50 cm. The greaterthis depth the more marked is the effect. The free ends,A B C1), are fixed in a card placed on the top of the tube. The points A and B of the loops are connected up to theterminals of a battery of 100 volts. The points C and D areeither insulated or are connected through a rheostat of glow-lamps. In the first case the loops are charged to thepotentials of the battery terminals ; in the second case aconstant current flows through the two loops in oppositedirections so that the electromagnetic forces tend to makethem repel each other. First Experiment.—The battery is unconnected, and theloops are at rest. Then the battery is joined up and thelocps move toAvards each other. The attraction is producedby the system of electrostatic tubes from the one loop to theother. Second Experiment.—The battery circuit is completed by between Electrostatic Tubes
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Keywords: ., bookcentury1800, bookdecade1840, booksubjectscience, bookyear1840
