Jul 31 2010

Here Come the Electric Cars: “Leaf” and “Volt”

and has no comments yet.
Here's an article from Triple Pundit talking about the launch of two new electric cars: the Nissan "Leaf" (eco-friendly name, huh) and the GM "Volt." Read the article and let us know - would you buy either of these two vehicles? The Plug-In 2010 Conference in San Jose was the site of major announcements by major auto manufacturers Nissan and General Motors. During their Tuesday morning speeches, both Nissan North America’s executive vice president, Carlos Tavares, and General Motors vice president of U.S. marketing, Joel Ewanick, announced that their much-anticipated products would be available in only a limited number of cities, at first, and that both companies will begin delivering cars by the end of the year. Even though there are many similarities and differences, both Nissan and GM are betting that U.S. auto buyers will embrace the plug with open arms. The Leaf and the Volt are the first mass-market plug-in electric vehicles to be sold in the U.S. The LEAF is a “pure” battery-electric vehicle, or BEV, and has no gasoline motor whatsoever. Its range is approximately 100 miles. The Volt, however, with an “all-electric” range of only 40 miles, augments its smaller battery pack with a gas motor that can recharge the battery while the vehicle is in motion. While this gives the Volt unlimited effective range, it means that the Volt is not truly "zero emissions".
Categories: News
Jul 31 2010

BP to try well kill Tuesday

and has no comments yet.
BP Plc said on Friday it could seal its ruptured Gulf of Mexico oil well by next week as the House of Representatives voted to toughen regulation of offshore energy drilling. Incoming BP Chief Executive Bob Dudley said the British energy giant would attempt a "static kill" operation on Tuesday to try to plug the blown-out deep-sea well that caused the worst offshore oil spill in U.S. history. This marks a slight delay. The U.S. official overseeing the spill response, retired Coast Guard Admiral Thad Allen, had said on Thursday he hoped the operation to pump mud and cement into the well could be performed as early as this weekend. As BP moved ahead with its plans, U.S. government scientists said South Florida, the Florida Keys and the U.S. East Coast likely will be spared from oil pollution from the spill despite earlier dire warnings.
Categories: News
Jul 30 2010

Nuclear Fusion

and has 1 comment.
Fusion power is the power generated by nuclear fusion reactions. In this kind of reaction, two light atomic nuclei fuse together to form a heavier nucleus and in doing so, release a large amount of energy. The major difference between fission and fusion reactors is that there is no possibility of a catastrophic accident in a fusion reactor resulting in major release of radioactivity to the environment. The primary reason is that nuclear fusion requires precisely controlled temperature, pressure, and magnetic field parameters to generate net energy. If the reactor were damaged, these parameters would be disrupted and the heat generation in the reactor would rapidly cease. In contrast, the fission products in a fission reactor continue to generate heat through beta-decay for several hours or even days after reactor shut-down, meaning that melting of fuel rods is possible even after the reactor has been stopped due to continued accumulation of heat.
Categories: News
Jul 30 2010

Good News for Gulf Fishermen

and has 1 comment.
In response to the oil disaster in the Gulf of Mexico, the federal government closed off vast areas of the ocean to fishing operations. Much of the area was closed off as a precaution, even if it was minimally touched by the spreading oil, to avoid a public health disaster from contaminated seafood. The good news is that about one-third of that closed off area has just been reopened by the National Oceanic and Atmospheric Administration (NOAA). In the 26,388 square miles to be reopened, no oil has been observed for the past thirty days.
Categories: News
Jul 30 2010

Backbone of marine food chain in alarming decline

and has no comments yet.
Tiny marine algae, known as phytoplankton, are the backbone of the marine food chain, yet a new study in Nature has found that this backbone is disintegrating. Researchers discovered that since 1950 phytoplankton has declined by approximately 40 percent across the Northern Hemisphere, a decline that corresponds to warming waters due to climate change. Given that these microscopic plants feed the oceans' abundance all the way up the food chain—from zooplankton to fish to seabird to sharks to humans—the decline has likely impacted the very structure of the ocean.
Categories: News
Jul 30 2010

Wildfires sweep central Russia

and has no comments yet.
Forest fires swept across central Russia on Friday, killing at least eight people and forcing the evacuation of thousands during the hottest summer since records began 130 years ago. Fanned by strong winds, raging fires ripped through woods and fields already scorched by the heatwave. The emergencies ministry said 866 square km, an area about the size of Berlin, was on fire in hundreds of peat and forest blazes. "We don't know where to go," said Galina Shibanova, 52, standing outside the charred remains of her family home in the town of Maslovka in the Voronezh region, about 500 km (300 miles) south of Moscow.
Categories: News
Jul 30 2010

The Might of the Spider

and has no comments yet.
Spider silk is a protein fiber spun by spiders. Spiders use their silk to make webs or other structures, which function as nets to catch other animals, or as nests or cocoons for protection for their offspring. Spider silk is as strong as many industrial fibers. There is commercial interest in duplicating spider silk artificially, since spiders use renewable materials as input and operate at room temperature, low pressures and using water as a solvent. However, it has been difficult to find a commercially viable process to mass produce spider silk.
Categories: News
Jul 29 2010

Health Risks at the Beach

and has no comments yet.
Just when you thought it was safe to go in the water... Sharks can be scary to encounter when swimming in the ocean. But they are not the most dangerous threat one can face at the beach. A new study from the University of Miami suggests that microbes in the water should be of much greater concern, especially in warmer waters. The team found that swimmers at sub-tropical beaches face an increased risk of illness.
Categories: News
Jul 29 2010

Mekong dams threaten rare giant fish

and has no comments yet.
Wild populations of the iconic Mekong giant catfish will be driven to extinction if hydropower dams planned for the Mekong River go ahead, says a new report by WWF. Current scientific information suggests the Mekong giant catfish migrate from the Tonle Sap Lake in Cambodia up the Mekong River to spawn in northern Thailand and Laos. Any dam built on the lower Mekong River mainstream will block this migration route.
Categories: News
Jul 29 2010

Galapagos Removed From Endangered List

and has no comments yet.
The Galapagos Islands have been removed from the UNESCO list of sites endangered by environmental threats or overuse. The island chain, about 620 miles off Ecuador's coast, is home to unique animal species that inspired Charles Darwin's ideas on evolution.
Categories: News
1 2 3 … 12