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| Carl Sagan's COSMOS is one of the most influential science programs ever made.
Q. Does the moon have a dark side?
A. The moon does have a far side which is impossible to see from the earth, but it doesn't mean that it's always dark. Each side of the moon is dark for no longer than 15 days at a time.
Q. Where does sound come from?
A. The air is always filled with sound waves. All things give off vibrations, but some have a low frequency which most cannot hear. The reason: it may take 3 minutes to make a single vibration. They may be caused by earthquakes and storms.
Did You Know?
The microwave was invented after a researcher walked by a radar tube and a chocolate bar melted in his pocket.
Coke-a-Cola was originally green.
Rubberbands last longer when refrigerated.
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JOHNS HOPKINS APL LAUNCHES ONLINE NEXT GENERATION SENSOR INITIATIVE
by Ben Walker of Johns Hopkins APL
The Johns Hopkins University Applied Physics Laboratory (APL), in
Laurel,
Md., announces the debut of a Web site designed to spark
collaboration
between users, designers and manufacturers of high-tech sensors.
Called the Next Generation Sensor Initiative (NGSI), the new service
is
free for subscribers and promises to speed the advance of sensor
technology
in fields ranging from biochemical detection and chemical analysis to
food
processing and energy flow.
"Basically, we'll be linking up people who need new types of
sensors with
researchers who can design them and ultimately with the folks that
can
produce them," says John Bacon, who heads the NGSI effort at
APL. "Our goal
is to increase U.S. competitiveness by ensuring that companies have
the
benefit of the most advanced R&D in their areas of sensor technology
and
are able to get their products to market in the quickest possible
time."
Companies using sensors, research organizations and potential sensor
manufacturers can join NGSI online through its Web site:
. After registering
and selecting areas of sensor
specialty, members can benefit in many ways:
* Sensor users will be able to join online focus and discussion
groups to
help define sensor needs and present them to a large audience of
technology
providers in the form of problem statements.
* Technology providers -- in most cases, laboratory researchers --
will
have access to problem statements outlining the need for new sensors,
and
will also be guided to potential funding sources to carry out the
necessary
research.
* Sensor manufacturers will have access to sensor solutions generated
by
technology providers.
"Sensors have become part of everyone's life, " Bacon says.
"We think this
new Web site and the online community it will create will be
incredibly
helpful to people in the $12 billion U.S. sensor industry."
The Applied Physics Laboratory, a division of The Johns Hopkins
University, meets critical national challenges through the innovative
application of science and technology. For information, visit
http://www.jhuapl.edu.
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