Gizmorama
December 21, 2009
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Good Morning,
Scientists have created a way for brain waves to type
numerical and alphabetical characters on a computer. Read
all about this groundbreaking research and what it could
mean for people with serious diseases such as Lou Gehrig's
disease in the first article.
Until Next Time,
Erin
Questions? Comments? Email me at: mailto:gizmo@gophercentral.com
Email your comments=
P.S. You can discuss this issue or any other topic in the new
Gizmorama forum. Check it out here...
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Study: Brain waves 'write' on a computer
JACKSONVILLE, Fla. - U.S. neuroscientists say they have
demonstrated brain waves can be used to type alphanumerical
characters on a computer screen. Researchers at the Mayo
Clinic's Jacksonville, Fla., campus said their study showed
that people, by focusing on the letter "q" in a matrix of
letters, for example, could "write" the letter on a brain-
interfaced computer monitor. The scientists said their
finding indicates a mind-machine interface might one day
help people with control disorders such as Lou Gehrig's dis-
ease and spinal cord injuries, or with prosthetic arms and
legs. "Over 2 million people in the United States may benefit
from assistive devices controlled by a brain-computer inter-
face," said Dr. Jerry Shih, who led the research. "This study
constitutes a baby step on the road toward that future, but
it represents tangible progress in using brain waves to do
certain tasks." The study that included Dean Krusienski of
the University of North Florida was presented in Boston
during the annual meeting of the American Epilepsy
Society.
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Scientists create instant nanobatteries
STANFORD, Calif. - U.S. scientists say they have combined
ordinary paper dipped into ink infused with carbon nanotubes
and silver nanowires to create an instant battery. Stanford
University post doctoral students led by Assistant Professor
Yi Cui said the paper batteries are ultra-lightweight and
bendable. "Society really needs a low-cost, high-performance
energy storage device, such as batteries and simple super-
capacitors," Cui said. Capacitors are similar to batteries,
holding an electric charge, but for a shorter period of time.
However, capacitors can store and discharge electricity much
more rapidly than a battery. "These nanomaterials are spec-
ial," Cui said. "They're a one-dimensional structure with
very small diameters." He said the small diameter helps the
nanomaterial ink stick strongly to the fibrous paper, making
the battery and supercapacitor very durable. Cui said the
paper supercapacitor may last through 40,000 charge-discharge
cycles -- at least an order of magnitude more than lithium
batteries. The nanomaterials also make ideal conductors be-
cause they move electricity along much more efficiently than
ordinary conductors, Cui said. He also noted the flexibility
of paper allows for many clever applications. "If I want to
paint my wall with a conducting energy storage device," Cui
said, "I can use a brush." Cui, Bing Hu, Liangbing Hu,
JangWook Choi and Yuan Yang report their work in the early
online edition of the Proceedings of the National Academy of
Sciences.
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U.S. to modernize volcano monitoring nets
RESTON, Va. - The U. S. Geological Survey says it will al-
locate $7 million for research by 15 universities and state
agencies into modernizing volcano monitoring networks. The
USGS, an agency of the Department of the Interior, said the
funding will come from the American Recovery and Reinvestment
Act and will be used to modernize equipment, produce high-
resolution maps of high-threat volcanoes for modeling vol-
canic hazards and analyzing data from recent eruptions. "As
population and development expand near hazardous volcanoes,
and air traffic over volcanic regions grows, risks from vol-
canic activity are increasing," said John Eichelberger, USGS
volcano hazard program coordinator. "The modernization of
our volcano monitoring networks will deliver more reliable,
robust information -- supplying emergency responders with
critical information they can use to save lives and reduce
damage, while creating or preserving jobs in equipment manu-
facturing, geophysical services, aviation services, academia,
including student researchers, and state agencies." Uni-
versities receiving funding include the Universities of Utah,
Washington, South Florida, Wisconsin, Alabama, Hawaii-Manoa
and Alaska-Fairbanks; California State University at Fuller-
ton, Boise State University, Northern Arizona University and
Southern Methodist University. State agencies receiving
funding include the Oregon Department of Geology and Mineral
Industries, Wyoming State Geological Survey, Washington De-
partment of Natural Resources and the Alaska Division of
Geological and Geophysical Surveys.
Video: Invisible Water Project
These students put on an impressive science demonstration as
they show their classmates the hidden water trick. The tank
is actually filled with sulfur hexafluorid (a gas heavier
than air).
http://www.evtv1.com/player.aspx?itemnum=12054
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