- Geothermal Heat Pumps
- Video: Searching for Earth-Like Planets
- Evidence of New Type of Black Hole Discovered
- Photos: Lightning Strikes
- Plan B Could Resume Soon for Trapped Miners in Chile
- 100 Tons of Diesel Spill into the Nile River
- Hurricane Igor Satellite Image
- Hurricane Igor Moving Towards Bermuda
- Before and After Satellite: San Bruno Gas Line Explosion
- The Yellowstone Mantle Plume
- Power Plants: Coal vs Natural Gas
- Hydrogeology Experiments for K-12 Students
- Dimension Stone Market Falls
- Cashmere and Desertification in Mongolia
- Video: Solar Flare Eruption
- Frac Attack
- Algal Blooms and Cyanotoxins in Lakes
- Debris Flows
- Diamond and Gemstone Markets Fell in 2009
- Are We Running Out of Optimal Coal?
Posted: 14 Sep 2010 11:01 PM PDT
A basic article that explains how geothermal heat pumps work, possible system configurations and information on their efficiency. From: Circular 1249, Geothermal Energy – Clean Power From the Earth’s Heat
Posted: 14 Sep 2010 10:34 PM PDT
Bill Welsh, Astronomy professor at San Diego State University, describes how NASA’s Kepler Mission contributes to the search for Earth-like planets.
Posted: 14 Sep 2010 10:03 PM PDT
“A group of international astronomers in the UK, France and the USA, led by the University of Leicester, have found proof to confirm the distance and brightness of the most extreme ultra-luminous X-ray source, which may herald a new type of Black Hole.
Posted: 14 Sep 2010 10:02 PM PDT
National Geographic has a collection of cloud-to-ground lightning photos from across the globe.
Posted: 14 Sep 2010 03:42 PM PDT
Plan B, one of three simultaneous efforts to rescue the 33 trapped miners in Chile, could resume drilling efforts soon after being forced to stop because of a broken drill bit.
Posted: 14 Sep 2010 02:11 PM PDT
100 tons of diesel has been spilled into the Nile River after a barge sank near the city of Aswan, Egypt. The governor of Aswan, Mostafa El-Saed, has stated that “All necessary measures have been taken to keep the situation under control.”
Posted: 14 Sep 2010 01:03 PM PDT
NASA’s Earth Observatory has published an interesting image of Hurricane Igor. “Igor shows all the characteristics of a strong hurricane, including a distinct eye and spiral arms spanning hundreds of kilometers.” Quoted from the NASA image release.
Posted: 14 Sep 2010 12:58 PM PDT
Hurricane Igor continues to move through the Atlantic Ocean and is expected to hit Bermuda on Sunday morning. At this time it does not appear to be a threat to the US east coast.
Posted: 14 Sep 2010 10:29 AM PDT
An article on the AOL website has before and after images of the area in San Bruno, California where a recent natural gas pipeline explosion destroyed a neighborhood. Instructions for viewing the images in Google Earth is also provided.
Posted: 13 Sep 2010 10:47 PM PDT
New research in the Yellowstone National Park area has produced seismic proof for a plume of molten rock that is thought to cause thermal and volcanic activity in the region.
Posted: 13 Sep 2010 10:36 PM PDT
James Rogers, CEO of Duke Energy Corporation, predicts that more utilities in the United States will build natural-gas-fired instead of coal-fired plants – if the price of gas remains stable.
Posted: 13 Sep 2010 10:35 PM PDT
“Using hydrogeology models, students will learn how groundcover influences surface runoff and groundwater recharge and how pollution travels through creeks, streams, and aquifers.” Quoted from the Jackson School of Geosciences website.
Posted: 13 Sep 2010 10:05 PM PDT
After posting nice year-on-year gains since 1992 the dimension stone market suffered during 2008 and 2009. Construction spending and prestige architecture were casualties of the economic downturn.
Posted: 13 Sep 2010 10:03 PM PDT
A rising demand for cashmere has herders in Mongolia raising more goats and overgrazing the available pastureland. The result is desertification.
Posted: 13 Sep 2010 10:02 PM PDT
“Just as sunspot 1105 was turning away from Earth on Sept. 8, the active region erupted, producing a solar flare and a fantastic prominence. The eruption also hurled a bright coronal mass ejection into space. The eruption was not directed toward any planets.” – Quoted from the NASA news release.
Posted: 13 Sep 2010 04:59 PM PDT
If you follow the news about natural gas from shale you might appreciate the presentation of information in “Frac Attack: Risks, Hype, and Financial Reality of Hydraulic Fracturing in the Shale Plays”.
Posted: 13 Sep 2010 10:07 AM PDT
“U.S. Geological Survey scientists studying the effects of harmful algal blooms on lake water quality found that blooms of blue-green algae (cyanobacteria) in Midwestern lakes produced mixtures of cyanotoxins and taste-and-odor causing compounds, which co-occurred in lake water samples. Cyanotoxins can cause allergic and/or respiratory issues, attack the liver and kidneys, or affect the nervous [...]
Posted: 12 Sep 2010 11:01 PM PDT
An introductory-level article on debris flows that includes: three videos of active debris flows in Pakistan, Colorado and Washington; a concept cartoon; several photos of debris flow deposits in California and Venezuela; and, a map of debris flow deposits at Glacier Peak, Washington. Related: Landslide Hazard Information.
Posted: 12 Sep 2010 10:32 PM PDT
According to the USGS Mineral Commodity Report for Gemstones the 2009 United States market for unset gem-quality diamonds fell by 30% while the market for unset nondiamond gemstones fell by 32%. These severe decreases were a result of the global economy’s impact on luxury spending.
Posted: 12 Sep 2010 10:28 PM PDT
A new study lead by Tad Patzek of the University of Texas at Austin, is predicting that we are at, or near, the peak of energy produced by coal. While the global amount of coal available is still high, coal which is high in quality and relatively cheap to obtain is becoming less abundant. Related: [...]
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