Monumental Lightning Strike |
On July 1, 2005 at 11:18 p.m. (local time) lightning struck the Washington Monument as a severe thunderstorm moved towards Washington , D.C. from Maryland . The storm produced vivid lightning and briefly heavy rain across the city. This photograph was taken from the Jefferson Memorial, looking across the Tidal Basin . The heavy rain associated with the storm had not yet arrived, thus allowing a clear view of the lightning strike. It's interesting that the Monument was struck from the side by the huge, powerful bolt, but also note the illuminated lightning streamer coming off the top of the Monument toward the primary bolt. The Washington Monument at 555 feet (169 m) is the highest building in Washington and
has an extensive lightning rod protection system. See also the Earth Science Picture of the Day for October 2, 2003.
Provided and copyright by: Kevin Ambrose , To view other Earth Science Pictures of the Day, visit their website at: http://epod.usra.edu/index.php3
Grounding versus Bonding Library - DVDs |
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Grounding and bonding problems are at epidemic levels. Surveys repeatedly show a high percentage of power quality problems are due to poor grounding and bonding. Electrical theory has been applied to this difficult to understand Article, making it easier for students to grasp the concepts of grounding and bonding. Additionally, Mike has color coded the graphics so you can easily differentiate between grounding and bonding. For a limited time, you can order the Entire Grounding versus Bonding Library including the textbook, 2 videos, MP3 Audio CD and the Online Program for this great price. You save over $200!
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Code: 05GBDVD
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$224.00 each
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