A monarch butterfly (Dannaux plexippus) flaps its wings in Piedra Herrada Sanctuary, Mexico. Might this start a chain of events that results in a tornado in Texas? Photograph by Jaime Rojo In 1961, ...
You've probably heard of the ‘butterfly effect’ from the 2004 American sci-fi movie featuring young Ashton Kutcher. But the term stems from the branch of math called chaos theory and is actually ...