ASTRO BOB Chance for flares from bad-boy sunspot group 1875
We've been a dry spell for auroras the past couple weeks, but that could change if a large sunspot group now crossing the solar disk continues to grow and become more magnetically active.
Active re... Posted on 10/22/13 at 12:42 PM
THE BRIDGEHUNTER'S CHRONICLES A bridge type making a comeback: the Melan arch bridge
Now the answer to the pop quiz:
In 1894, an Austrian-Bohemian engineer, Frederick von Emperger, decided to experiment with a bridge design over a small stream northeast of Rock Rapids, Iowa. This d... Posted on 7/16/13 at 7:02 AM
MINNEAPOLIS — Delta Air Lines is shrinking its number of flights to small cities in the nation’s midsection, including Hibbing and International Falls, saying it can’t make money on flights that sometimes are completely empty.
, July 16, 2011
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