A magnet is defined as any material capable of attracting iron and producing a magnetic field outside itself. Magnets are essential for the generation of electric power and are used in motors, generators, information storage, ATM cards, TVs, and numerous other applications. By the end of the 19th century, all known elements and many compounds had been tested for magnetism, and all were found to have some magnetic property. However, only three elements exhibit ferromagnetism. What are they?
Back in the day
The Bear River Massacre took place in 1863 when the US Army attacked Shoshone gathered at the confluence of the Bear River and Beaver Creek in what is now Idaho. The incident began when Colonel Patrick Edward Connor led a detachment of approximately 200 US Army soldiers as part of the an expedition against Shoshone Chief Bear Hunter, who had strongly resisted colonization of tribal areas. Some 250 Shoshone were killed in the attack, including Bear Hunter. What became of Connor?
Born on a day like today
Chekhov was a Russian short-story writer, dramatist, and physician who earned enduring international acclaim for his stories and plays. His early works were broad humorous sketches and tales published under a pseudonym, written to support himself and his family while he studied for his medical degree in Moscow. His first full-length play, Ivanov, was produced while he was practicing as a doctor. Why was a statue of Chekhov in the town of Tomsk modeled on the perspective of a drunkard?