cells, reproduce quickly. Other cells, like nerve cells, grow slowly. Both normal cells and cancer cells go through a sequence of steps, or phases, when they form new cells. This is called the cell cycle.
On a cold, foggy morning, an army wakes on the banks of a river. A tall soldier named Jim Conklin begins his day by washing his shirt, and rushes back to camp to report a rumor he has overheard: the regiment will move into battle the next day.
Gen John Sedgwick was the highest-ranking Union official killed on the battlefield during the United States Civil War. They couldn't hit an elephant at this distance, he allegedly said to his colleagues during battle, right before he was shot and killed by a confederate sharpshooter.