This colorfully illustrated French and Hebrew Passover Haggadah was published in Vienna in 1930. Caption on the image: "Eating Matzah." This restored document is part of an exhibit at the National Archives in Washington, D.C., that opens Nov. 8.
One man's sewage is another man's drinking water. As wastewater comes through this pipe, straw-like filters get rid of any contaminants wider than a human hair. That's just one step of the purification process.
The question of how humans process the flood of electronic media was a central part of the work of Stanford University sociology professor Clifford Nass, who died recently. Citing multiple studies, Nass said people often overestimate their ability to multitask.
Militias from towns throughout the country's west parade through Tripoli, Libya, in 2012. Analysts say the country is awash with heavy weapons in the hands of militias divided by tribe, ideology and region. The central government has little power over the gunmen.
Abdel Magid Al Fergany/AP
The limousine carrying President John F. Kennedy races toward the hospital after he was shot in Dallas on Nov. 22, 1963, with Secret Service agent Clint Hill riding on the back.
Nathan Bedford Forrest served as the first grand wizard of the Ku Klux Klan. The high school that bears his name, now majority African-American, has been at the center of controversy for decades.