having been the person who first switched on the signal for a commercial TV station in 1949, and then be the
one to shut if off again 60 years later! On June 12, 2009, 99-year-old WAGA engineer
Paul Cram did just that in a ceremony marking the FCC-mandated switchover from analog to digital
Paul mentions how back in the day, a B&W TV with a 7" screen cost $1,000. BTW, does the comment made by
the reporter right after the signal goes dead strike you as odd?
will take a little more than simply downloading an app from the Internet for your iPhone to pull this off.
Researchers at Freie University of Berlin developed the application seen controlling a specially equipped car.
I hope there was an emergency kill switch incorporated to remove any possibility that it could run into that
cool old airplane on the other side of the hangar.
Rest of the story.
when laser power was measured in units of "Gillette
power (GP)," when rare earth minerals like ruby were the known medium for lasing? 1 GP was the laser power
needed to cut through a Gillette razor blade. That was in a lab environment. We've come a long way, baby. This
video shows the C-130-mounted Advanced Tactical Laser targeting a 1-ft square area on a truck hood. It burns
through the hood and the engine... from a moving platform. Wicked.
IEEE has produced a few videos in a series called Thank an Engineer. This one is titled "Thank
an Engineer: Notebook PC." Although some of the scenes are a little hokey, I can remember loading a CRT
and CPU tower onto a cart to wheel it over to the meeting room as part of a presentation. By the time I left
the corporate world to go independent in the spring of 2007, it had gotten to the point where everyone at
meetings had a wirelessly connected notebook. They answered e-mail, wrote reports, ran simulations, surfed,
and occasionally listened to the speaker.
1971, Joe Hafele and Richard Keating conducted an experiment to test the General Theory of Relativity's
prediction of time dilation, aka The Twin Clock Paradox. They synchronized two atomic clocks with a
standard and took one on a flight in a Boeing 747 while leaving the other behind. Einstein's equations
predicted a loss of about 40 ns in the W-E direction, and a gain of about 275 ns for E-W. Measured results
were within the calculated uncertainty. Here, Dr. DonZi explains away the "paradox" part of the Twin Clock
Project to the 10100 (that number is a
googol, by the way), is "a call for ideas to
change the world by helping as many people as possible." Google has committed $10M to implementation of
winning ideas, which include the following topics: community, opportunity, energy, environment, health.
education, shelter, & everything else. Call me a skeptic, but I consider all the money, equipment, and labor
volunteered by people of their own free will and then fume over governments telling me it is never enough.
There is a lot of money being made by legislators pandering to activists.
is time for the Christmas video assortment. Here
an eclectic mix of Trans-Siberian Orchestra, Bing
/ David Bowie singing a duet, and a new
where Jack Bauer (24) interrogates Santa Claus.
from RF Cafe!
companies are creating videos to pitch their products. This short clip from
DowKey Microwave demonstrates how to use their line of
switches, filters, power dividers, etc., to easily assemble switch matrices ranging from simple to quite
complex. What I would like to see is videos showing production processes like how a lumped element filter is
assembled and tuned, how coaxial connectors are machined, how to automate testing of amplifiers, etc. Most of
those tasks do not qualify as trade secrets, so broadcasting them is not competitive a risk. It could be a
great public relations tool.
season is nearly here again in the northern hemisphere. It will be a few years before you are sharing the
slopes with robots, but work is underway at the
Jozef Stefan Institute in Slovenia. This little dude
uses GPS receiver and USB camera feeds into a microprocessor to navigate the slalom course set before it.
first presented this at the IEEE/RSJ International Conference on Intelligent Robots and Systems.
in humble Tibet (even though it was produced in the U.S.)
and zooming out to the very edge of the known universe (13.7 billion light years), this video claims to
contain an accurate 3D mapping of every cataloged object, including gas clouds. A couple years ago there was a
similar animation that began at the microscopic scale and zoomed out to the cosmic level, but it was not based
on a real mapping.
is another example of a video produced by an RF component manufacturer to pitch its products. Using engineer
characters that are sort of a cross between a
and a South Park
deviant, Giga-tronics created a storyline about reliability and flexibility in their selection of signal
generation and measurement equipment. Again I suggest videos demonstrating component production processes like
assembly, measurement, and tuning.
Poly claims in this video to be the only university with an
for testing antennas. The Electrical Engineering department developed this facility as part of their 'Learn
by Doing' philosophy that gives students an opportunity to get hands-on exposure to test set-ups and making
measurements, as well as an ability to check theoretical predictions against measured results. Having such
experience will be a nice resume enhancement.