One of the deadliest parts of a volcanic eruption, a pyroclastic flow is a gigantic current of gases and bits of rock that surges downhill at speeds of up to 450 mph (724 km/h) and temperatures of about 1,800° F (1,000° C). These deadly flows can cross water bodies and have the potential to generate tsunamis. During the 1902 eruption of Martinique's Mount Pelée, a pyroclastic flow destroyed the entire city of Saint-Pierre, killing some 28,000. What other city was famously destroyed in this way?
Back in the day
The Virginia Tech massacre was the deadliest peacetime shooting episode in US history by a single gunman. Seung-Hui Cho, the perpetrator, had a long history of mental illness when he enrolled at Virginia Tech University and was, in 2005, declared mentally ill by a Virginia court and ordered to seek treatment. Sixteen months later, Cho, in two separate attacks hours apart, shot and killed 32 people at the university and then himself. What did he do in the time between the two shooting sprees?
Born on a day like today
Cunningham was an American modern dancer and choreographer. He studied with Martha Graham, presented his first work in 1942, and formed his own company in 1953. His innovative dances were set to the music of avant-garde composers, including his longtime partner, John Cage. He was known for collaborating with contemporary artists, including Andy Warhol and Jasper Johns, who created sets and costumes for him. In 2003, his Split Sides featured music by what two experimental rock bands?