Stratford University
Don't Forget the Stratford Tysons Corner Open
House
Oct 26, 10AM-2PM
Reserve Your Spot
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Tech Talk Radio Highlights
Tech Talk covered a wide range of topics this week:
the recent UUNet router meltdown, disappointment for
the developers of UltrawideBand, hypersound speakers,
the latest hacker and email scams, and much more.
Listen now to the latest show using
either MP3 or Real Audio. Check out all the
links referenced
during the show.
Tech Talk airs each Saturday at Noon on WMAL
Radio (AM630) and is sponsored by Stratford
University. WMAL is an ABC affiliate and the number
one AM radio station in the Washington DC metropolitan
area.
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| Tech Talk To Broadcast Live During Open House | | |
Ever
wondered what a radio broadcast of Tech Talk might look like?
Here's your chance! Tech Talk will be airing live from the
Tysons Corner Campus during Stratford's Open House this
Saturday, October 26th. The Open House will be from 10AM
to 2PM. Tech Talk will be broadcast from 11:45AM to 12:30PM
in the Stratford Room. Our IT students will be demonstrating
common hacking & patching techniques, wireless networking
configurations, as well as, hosting a computer clinic for
broken computers. The Culinary Department will have cooking
demonstrations and a few snacks as well.
Check out Stratford Website for Directions | | |
| UUNet Router Meltdown | | | The East Coast UUNet routers housed near Tysons
Corner VA ground to a halt this month when most of
the routers on the system were upgraded using an
untested configuration that included a corrupted
routing table. With most of the routers out of
commission, the normally fault tolerant configuration
suffered a dramatic slowdown that affected nearly 70%
of all email traffic on the Net. The unnamed engineer,
who ordered the upgrade without pre-testing, must
certainly be in hot water now.
Check
out the Full Story on Wired
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| Road Rocky for Ultrawide Band | | | Ultrawide Band (UMB) proponents got bad news this
month. NASA ran a series of tests where a UWB
transmitter placed near a 737 aircraft disabled the
plane's collision- avoidance and instrument-landing
systems. Further tests are planned in the near future,
but these preliminary results may be a show
stopper.
Ultrawide Band (UWB) is a new high
bandwidth technology that uses narrow pulses to
spread energy over a broad spectral band. Since the
spectral energy density is so low, proponents argue
that it will not interfere with licensed applications that
reside in the bands that UWB overlaps. Applications
include personal area networks, short range radar,
positioning systems, and RF tagging. Recently the FCC
gave the go ahead for the limited testing of
specific UWB applications.
Read
the Story
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| Man versus Machine Chess Match a Draw | | | Reigning World Chess Champion Vladimir Kramnik
appears to be evenly matched with a computer called
Deep Fritz. After eight games, the match is tied at 4
each. The German developed computer can evaluate
3.5 million moves per second, but has trouble
predicting a dramatic shift in strategy, a weakness that
Vladimir is able to exploit.
The match follows the 1997 contest in which IBM
computer Deep Blue faced then World Chess Champion
Garry Kasparov, who was Kramnik's tutor. Kramnik
would have won $1 million if he defeated Deep Fritz,
but had to settle for only $800,000.
Check
out the BBC Coverage
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| Hypersound Audio Can "Project" Sound | | |
Holosonics
is working with Chrysler to develop a car hypersound audio
system that allows each passenger to hear a different station.
We may even see hypersound beams used in Coke machines to
create personal audio messages for those passing by.
Hypersound technology uses high frequency directional
beams that can be focused. Non-linearity in the
transmission medium produces the audible sounds that
are heard. It is based World War II sonar parametric
array technology that was used to focus sonar beams
for long range detection. When a hypersound beam is
focused on a person, the sound seems to originate from
within their head. When a beam is focused on the wall,
the sound seems to originate from the wall, an effect
that may be used to create surround sound.
More
Info on Hypersound Speakers
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