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Tag: underground
Prehistoric climate changes still detectable deep underground
2015-05-28 19:04:00| Climate Ark Climate Change & Global Warming Newsfeed
Environmental News Network: It turns out that the steady dripping of water deep underground can reveal a surprising amount of information about the constantly changing cycles of heat and cold, precipitation and drought in the turbulent atmosphere above. As water seeps down through the ground it picks up minerals, most commonly calcium carbonate. When this mineral-rich water drips into caves, it leaves mineral deposits behind that form layers which grow during wet periods and form dusty skins when the water dries up. Today,...
Tags: deep
underground
climate
detectable
Hundreds of Underground Gas Lines Leak Methane Gas
2015-05-16 19:51:51| Energy - Topix.net
The gas company vows repairs after a creative study by environmental activists found nearly 250 locations where methane is leaking. In light of a report from an environmental group which found there are nearly 250 locations where planet-warming methane is leaking from natural gas lines under streets in the Greater Los Angeles area, Southern California Gas Co.
Tags: lines
gas
hundreds
underground
Using an Underground Metal Water Pipe as a Grounding Electrode
2015-05-15 13:00:00| Electrical Construction & Maintenance
Part III of Art. 250 focuses on the grounding electrode conductor and grounding electrode system. read more
Tags: water
metal
underground
pipe
TfL to extend use of Sentinel identification system to London Underground
2015-04-29 01:00:00| Railway Technology
UK rail infrastructure operator Network Rail and Transport for London (TfL) have signed an agreement to extend the use of Sentinel identification system to London Underground and its supply chain.
Tags: system
london
identification
extend
Regenerative Drive Power Goes Underground
2015-04-23 12:31:14| Industrial Newsroom - All News for Today
Unique below-ground system at Portland Water Bureau utilizes Lucid Energy power generation, Siemens motors and regenerative drives with natural water flow to create energy; will produce 1.1MW of electricity per year, enough to power 150 homes Recently, the use of regenerative energy has ramped up quickly in...
Tags: power
drive
underground
regenerative
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