Caribbean Scientist Warns of Climate Change Disaster
The Caribbean does not have the luxury of time for decisive action on climate change and global warming. In fact, it is on the brink of calamity, according to a prominent scientist. Conrad Douglas, a Jamaican scientist who has published over 350 reports on environmental management and related matters, has warned that “urgent action at all levels [is] required now”, cautioning the region against complacency in dealing with climate change.
The Body's "Fountain of Youth" Could Lie In the Brain
Zothecula writes "Instead of traipsing through Florida in search of the Fountain of Youth, Spanish explorer Juan Ponce de León might have been better off turning his search inwards. More specifically, he should have turned his attention to a region of the brain called the hypothalamus. At least that's what research carried out on mice by scientists at New York's Albert Einstein College of Medicine of Yeshiva University suggests. They found that the hypothalamus controls many aspects of aging, opening up the potential to slow down the aging process by altering signal pathways within that part of the brain."
Study: Brain hypothalamus immune pathway controls aging
Scientists at the Albert Einstein College of Medicine, NY, have found that the hypothalamus region of the brain is involved in controlling aging. They found that a pathway in the hypothalamus is able to slow down the rate of aging in mice by 20 percent.
'Green' Galaxy Recycles Gas, Supercharges Star Birth
astroengine writes "In a galaxy, far, far away (6 billion light-years away to be precise), the most efficient star 'factory' has been discovered. Called SDSSJ1506+54, this galaxy generates a huge quantity of infrared radiation, the majority being generated by a compact region at its core. NASA's Wide-field Infrared Survey Explorer first spotted the galactic oddity and Hubble confirmed the maelstrom of stellar birthing near its core. But the most amazing thing? This galaxy is the 'greenest' factory yet discovered — it uses 100 percent of all the available hydrogen to supply the protostars, leaving no waste. 'This galaxy is remarkably efficient,' said lead scientist Jim Geach of McGill University in a NASA news release. 'It's converting its gas supply into new stars at the maximum rate thought possible.'"
Laser Fusion's Brightest Hope
First time accepted submitter szotz writes "The National Ignition Facility has one foot in national defense and another in the future of commercial energy generation. That makes understanding the basic justification for the facility, which boasts the world's most powerful laser system, more than a little tricky. This article in IEEE Spectrum looks at NIF's recent missed deadline, what scientists think it will take for the facility to live up to its middle name, and all of the controversy and uncertainty that comes from a project that aspires to jumpstart commercial fusion energy but that also does a lot of classified work. NIF's national defense work is often glossed over in the press. This article pulls in some more detail and, in some cases, some very serious criticism. Physicist Richard Garwin, one of the designers of the hydrogen bomb, doesn't mince words. When it comes to nuclear weapons, he says in the article, '[NIF] has no relevance at all to primaries. It doesn't do a good job of ...