Category Archives: Green

This Changes the Neighborhood

Plant Communication: Sagebrush Engage In Self-recognition And Warn Of Danger

ScienceDaily (June 20, 2009) — To thine own self be true” may take on a new meaning—not with people or animal behavior but with plant behavior. Plants engage in self-recognition and can communicate danger to their “clones” or genetically identical cuttings planted nearby, says professor Richard Karban of the Department of Entomology, University of California, Davis, in groundbreaking research published in the current edition of Ecology Letters.

Karban and fellow scientist Kaori Shiojiri of the Center for Ecological Research, Kyoto University, Japan, found that sagebrush responded to cues of self and non-self without physical contact. The sagebrush communicated and cooperated with other branches of themselves to avoid being eaten by grasshoppers, Karban said. Although the research is in its early stages, the scientists suspect that the plants warn their own kind of impending danger by emitting volatile cues. This may involve secreting chemicals that deter herbivores or make the plant less profitable for herbivores to eat, he said.

 

Read the Entire Article Here: http://www.sciencedaily.com/releases/2009/06/090619171244.htm

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Cold Fusion or sequel to ‘The Saint’?

 

coldfusionWASHINGTON (AFP) – Researchers at a US Navy laboratory have unveiled what they say is “significant” evidence of cold fusion, apotential energy source that has many skeptics in the scientific community.

The scientists on Monday described what they called the first clear visual evidence that low-energy nuclear reaction (LENR), or cold fusion devices can produce neutrons, subatomic particles that scientists say are indicative of nuclear reactions.

“Our finding is very significant,” said analytical chemist Pamela Mosier-Boss of the US Navy’s Space and Naval Warfare Systems Center (SPAWAR) in San Diego, California.

“To our knowledge, this is the first scientific report of the production of highly energetic neutrons from a LENR device,” added the study’s co-author in a statement. The study’s results were presented at the annual meeting of theAmerican Chemical Society in Salt Lake City, Utah. The city is also the site of an infamous presentation on cold fusion 20 years ago by Martin Fleishmann and Stanley Pons that sent shockwaves across the world.

coldfusion_timeDespite their claim to cold fusion discovery, the Fleishmann-Pons study soon fell into discredit after other researchers were unable to reproduce the results. Scientists have been working for years to produce cold fusion reactions, a potentially cheap, limitless and environmentally-clean source of energy.

Paul Padley, a physicist at Rice University who reviewed Mosier-Boss’s published work, said the study did not provide a plausible explanation of how cold fusion could take place in the conditions described.

“It fails to provide a theoretical rationale to explain how fusion could occur at room temperatures. And in its analysis, the research paper fails to exclude other sources for the production of neutrons,” he told the Houston Chronicle.

“The whole point of fusion is, you?re bringing things of like charge together. As we all know, like things repel, and you have to overcome that repulsion somehow.”

But Steven Krivit, editor of the New Energy Times, said the study was “big” and could open a new scientific field. The neutrons produced in the experiments “may not be caused by fusion but perhaps some new, unknown nuclear process,” added Krivit, who has monitored cold fusion studies for the past 20 years.

“We’re talking about a new field of science that’s a hybrid between chemistry and physics.”

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