Neurosurgeon Andres Lozano talks about dramatic findings in deep brain stimulation including a woman with Parkinson's who instantly stops shaking, and brain areas eroded by Alzheimer's that are brought back to life.
In the early to mid-1900s, the islands of Hawaii were a far-away, exotic destination. People who managed to get there often kept mementos of that journey including kitschy menus from Hawaiian fine dining restaurants and hotels like like Trader Vic's and Prince Kuhio's.
Now these old menus are serving a purpose beyond colorful relics from the past. Kyle Van Houtan, an ecologist with the National Oceanic and Atmospheric Administration, says he's found a scientific purpose for the menus.
Plant life on our planet soaks up a fair amount of the carbon dioxide that pours out of our tailpipes and smokestacks. Plants take it up during the summer and return some of it to the air in the winter. And a new study shows that those "breaths" have gotten deeper over the past 50 years.
This isn't just a curiosity. Plant life is helping to reduce the speed at which carbon dioxide is building up in our atmosphere. That's slowing the global warming, at least marginally, so scientists are eager to understand how this process works. The new study provides some clues.
Originally published on Thu August 8, 2013 3:54 pm
A U.S. radar system that tracks thousands of objects orbiting Earth — from satellites to harmful debris — has been slated for shutdown, according to the Space News site. The ground-based network known as the "Space Fence" may cease to operate in October.
Originally published on Thu August 8, 2013 2:05 pm
Our nearest star is about to pull a once-in-11-years move by swapping its north and south magnetic poles.
The sun's polarity switch is a natural part of "solar max" — the period of peak activity during what averages out to be roughly an 11-year cycle. According to NASA, this year will mark the fourth time since 1976 that scientists have observed the 180-degree pole flip.
Originally published on Thu August 8, 2013 9:01 am
Imagine a friend of a friend brings his family to stay with you — his family of tiny survivalists. For weeks or months you all live quietly side by side with no problems. You share meals. Your kids play together.
Then one day you get sick — maybe felled by a bad cold or the flu. Suddenly certain the end is near, your jittery houseguest breaks out an armory's worth of chemical weapons. He abandons his community to save himself and hunt for a new home, wreaking havoc on the way out the door.
Originally published on Fri August 9, 2013 6:19 pm
Here's what the Swedish artist Oscar Reutersvard did. In 1934, he got himself a pen and paper and drew four cubes, like this.
Then he drew some more, like this.
And, then — and this is where he got mischievous — he drew one more set, like this.
He called this final version "Impossible Triangle of Opus 1 No. 293aa." I don't know what the "293aa" is about, but he was right about "impossible." An arrangement like this cannot take place in the physical universe as we know it.
The 2010 bestseller The Immortal Life of Henrietta Lacks highlighted ethical controversies surrounding scientists' use of HeLa cells. The cells are descended from a tumor taken without consent from Henrietta Lacks, a poor black woman who died in 1951. Ethical concerns resurfaced with the publication of the HeLa cell's genome. The National Institutes of Health has now issued guidelines. For an explanation, Linda Wertheimer talks to NIH director Francis Collins.
This story comes to us from our friends at the science desk. They produced the 7-minute video documentary you see above.
"Modern-day rappers — all they talk about is money, and all these unnecessary and irrelevant topics," says Victoria Richardson, a freshman at Bronx Compass High School. Richardson's rhymes tackle a much less-popular subject: DNA.
The Environmental Protection Agency is proposing to let oil companies continue to dump polluted wastewater on the Wind River Reservation in Wyoming. This includes chemicals that companies add to the wells during hydraulic fracturing, an engineering practice that makes wells produce more oil.