STORK 



5562 



STORMS 



rent. It is chemical energy which is stored in 

 a storage battery. Whea the proper electrical 

 connections are made this chemical energy is 

 transformed into electrical energy. When the 

 battery is run down it is in the same condition 

 as at first; that is, in the simple storage cell 

 described above the lead peroxide has been re- 

 duced to lead, so both plates are again lead. 

 The storage battery may be charged and dis- 

 charged as often as desired. 



The difference between a storage battery and 

 other electric batteries is that in all other bat- 

 teries new solution and new positive plates 

 must be supplied when the battery is run down, 

 while in the storage battery the plates and the 

 solution are renewed by passing an electric cur- 

 rent through the battery from some other 

 source. 



The plates of commercial storage cells are 

 usually in the form of grids. The apertures in 

 the positive plate are filled with lead peroxide 

 and those of the negative plate with porous 

 lead. When the cell is discharged both plates 

 consist of monoxide of lead. 



In the Edison storage battery the plates are 

 formed of grids of sheet steel. The grids of 

 the plates which form the positive electrode 

 are filled with nickel hydroxide; the plates 

 forming the negative electrode are filled with 

 an oxide of iron (ferrous oxide) mixed with 

 graphite. The liquid is a solution of caustic 

 potash (potassium hydroxide). The merit of 

 the Edison battery lies in the fact that it will 

 stand without injury severe usage which would 

 destroy a lead battery. It has greater capacity 

 in ampere hours in proportion to weight than a 

 lead battery. The voltage of the Edison bat- 

 tery is about 1.6 volts for each cell, while the 

 voltage of a lead battery is two volts for each 

 cell. 



Storage batteries are used for various pur- 

 poses, but chiefly to furnish power for electric 

 automobiles. These batteries are charged by 

 connecting them with a strong electric current 

 for a few hours. Most garages are equipped to 

 charge storage batteries. E.E.B. 



Consult Treadwell's The Storage Battery; Wat- 

 son's Storage Batteries: Their Theory, Construc- 

 tion and Use. 



Related Subjects. The reader is referred to 

 the following articles in these volumes: 

 Edison, Thomas A. Electricity 



( page 1926) Voltmeter 



Electric Bell 



STORK, stawrk, a long-legged, strong-winged 

 bird, of large size, finding its food in marshes 

 and swamps, but often nesting on roofs and 



chimneys, in close proximity to the dwellings of 

 man. It feeds on eels, frogs and toads, reptiles, 

 young birds and small mammals. This bird 

 belongs to the heron family. The best-known 

 species is the white stork, found in summer 



THE WHITE STORK 



throughout most of Europe and Central Asia, 

 and migrating for the winter to Africa and 

 Northern India. This stork has pure white 

 plumage with black wing coverts and quills, 

 a red beak and reddish-pink legs and feet. The 

 pairs return year after year to the same nests, 

 building on to it till it is several feet in height. 

 The eggs are white in color and three to five 

 in number. 



Other storks of the eastern hemisphere are the 

 Japanese stork, the black stork, the white-necked 

 stork and the adjutant. In South America are 

 found the maquari stork and the jabiru, a bird 

 five feet high, occurring as far north as Texas. 

 The stork has no voice and can only chatter 

 by striking together the parts of its strong 

 beak. 



Much folklore has grown up about the bird, 

 and it is protected and venerated in many sec- 

 tions, especially in Germany and the Nether- 

 lands, not only for its usefulness in destroying 

 insects, reptiles, etc., but also as a bird of good 

 omen and the symbol of domestic affection. 

 From its loving care for its young has come 

 the familiar legend that the stork brings the 

 new baby into the home. 



STORMS, disturbances of the atmosphere, 

 marked usually by violent winds, rain, snow or 

 hail, or by a combination of two or more of 

 these. If the temperature of the air were 

 everywhere equal, storms would be unknown. 

 But the sun warms the air unevenly; its heat- 



