(Encyclopedia) gold, metallic chemical element; symbol Au [Lat. aurum=shining dawn]; at. no. 79; at. wt. 196.96657; m.p. 1,064.43℃; b.p. 2,808℃; sp. gr. 19.32 at 20℃; valence +1 or +3.
Gold is very…
(Encyclopedia) Great Lakes, group of five freshwater lakes, central North America, creating a natural border between the United States and Canada and forming the largest body of freshwater in the…
The Iditarod Alaska's marathon sled-dog race by Erin Teare The first Saturday in March marks the beginning of the Iditarod, a one thousand mile sled dog race across Alaska's harsh…
The Titanic isn't the only notable shipwreck (though it is famous for crashing into an iceberg on April 15, 1912, killing over 1,500 people). The Lusitania, a British luxury…
(Encyclopedia) Fergana Valley or Ferghana Valley, region, 8,494 sq mi (22,000 sq km), Central Asia, divided among Uzbekistan, Tajikistan, and Kyrgyzstan. The Fergana Range (part of the Tian Shan…
