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  1. A Measure of Wheat

    Return of the True Cross by Heraclius

    It is believed that the True Cross was discovered when Constantine's mother, Empress Helena, ordered the destruction of Emperor Hadrian's pagan Temple of Venus, in Jerusalem. During the demolition, legend has it that three crosses were found buried at the site. As recounted in the biblical...
  2. A Measure of Wheat

    Scientists Film Hummingbirds in a Wind Tunnel

    With a high speed camera, scientists are able to observe, record and simulate the motions and movements of hummingbirds in a variety of conditions--from normal, hot sunny days, to high wind and rain. And it doesn't matter if it's rainy and windy. Since these birds have such a high metabolism...
  3. A Measure of Wheat

    The Gold Standard

    On March 14, 1900, the Gold Standard Act was was ratified, which put the United States currency on the gold standard. The United States originally had established a silver standard and with the passage of the Coinage Act of 1792, legal tender status was given to both gold and silver. Many...
  4. A Measure of Wheat

    Brain Scientist Shares Her Story About Having a Massive Stroke

    A neuroanatomist talks about the day she suffered a massive stroke. Her experience provides a rare insight into the workings of the brain, particularly because these recollections of the stroke come from an actual brain scientist--an expert who has spent years studying the brain. It's a...
  5. A Measure of Wheat

    The Shocking Zapruder Film

    On March 6, 1975, the infamous Zapruder film, which was shot with an 8 mm home-movie camera by Abraham Zapruder, was shown to a national TV audience for the first time on the "Good Night America" program. The Zapruder film is not the only known recorded footage that captured the assassination of...