The Grove cell was an early electric cell named after its inventor, British chemist William Robert Grove, and consisted of a zinc electrode in dilute sulfuric acid and a platinum electrode in concentrated nitric acid, the two separated by a porous ceramic pot. Sir William Robert Grove (1811 – 1896) was a British chemist born in Swansea in Wales. ... General Name, Symbol, Number zinc, Zn, 30 Chemical series transition metals Group, Period, Block 12, 4, d Appearance bluish pale gray Atomic mass 65. ... An electrode is a conductor used to make contact with a nonmetallic part of a circuit (e. ... Sulfuric acid (British English: sulphuric acid), H2SO4, is a strong mineral acid. ... General Name, Symbol, Number platinum, Pt, 78 Chemical series transition metals Group, Period, Block 10, 6, d Appearance grayish white Atomic mass 195. ... An electrode is a conductor used to make contact with a nonmetallic part of a circuit (e. ... The chemical compound nitric acid (HNO3), also known as aqua fortis and spirit of nitre, is an aqueous solution of hydrogen nitrate (anhydrous nitric acid). ...

The Grove cell was the favored power source of the early American telegraph system in the period 1840 - 1860 because it offered a high current output and nearly double the voltage of the earlier Daniell cell. However, by the time of the American Civil War, as telegraph traffic increased, the Grove cell's tendency to discharge poisonous nitric acid gas proved increasingly hazardous to health, and as telegraphs became more complex, the need for constant voltage became critical and the Grove device was limited in this respect because as the cell discharged, voltage reduced. Eventually, Grove cells were replaced in use by Daniell cells. Telegraphy (from the Greek words tele = far away and grapho = write) is the long distance transmission of written messages without physical transport of letters, originally over wire. ... 1840 is a leap year starting on Wednesday (link will take you to calendar). ... 1860 is the leap year starting on Sunday. ... Early 20th-century engraving of a gravity cell. ... Combatants United States of America (Union) Confederate States of America (Confederacy) Commanders Abraham Lincoln, Ulysses S. Grant Jefferson Davis, Robert E. Lee Strength 2,200,000 1,064,000 Casualties 110,000 killed in action, 360,000 total dead, 275,200 wounded 93,000 killed in action, 258,000 total...

See also

• William Robert Grove

Sir William Robert Grove (1811 – 1896) was a British chemist born in Swansea in Wales. ...

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