Long thought to cause feelings of fear or awe, infrasound is sound that is able to cover long distances with little dissipation at a frequency too low to be detected by the human ear. It is created by natural phenomena such as ocean waves and earthquakes and can be artificially produced by explosions or machines. Infrasound is used by some animals to communicate over long distances and by predators to "freeze" their prey. Why do some scientists believe infrasound is related to ghost sightings?
Back in the day
On this day in 1957, Arkansas Governor Orville Faubus ordered the National Guard to prevent nine black students from entering Central High School in Little Rock. This act defied the US Supreme Court's ruling in Brown v. Board of Education, which called for the racial desegregation of public schools. President Eisenhower responded by sending federal troops to enforce integration and protect the students. How did Faubus and the Arkansas State Legislature respond to the president's actions?
Born on a day like today
Chateaubriand was a French political leader, diplomat, and writer, and is considered the Father of French Romanticism. His RenÃ©, an autobiographical novella and tragic love story, exemplifies the characteristically evocative language of romantic fiction. Exiled during the Reign of Terror, Chateaubriand returned to France during Napoleon's reign and was appointed to a variety of political positions. How did Chateaubriand support himself during his exile in London?