More than 2,000 years ago, a Greek scientist created a death ray that could set enemy ships on fire from a long distance. But how did he do it using ancient technology?

Throughout history, there have been intriguing references in ancient texts to devices and mechanisms that bear a striking resemblance to modern computers. These descriptions, while often shrouded in ...

This ‘NOVA’ installment explores the possible purposes of strange stone formations found in the Arabian Peninsula.