Explosive Charges Bring down
48 VOA Towers in North Carolina
item appeared on the ARRL news website. It links to a video showing an engineered demolition of a shortwave antenna farm
in North Carolina commissioned by the Voice of America (VOA) in 1963, during the Cold War. The video provides an aerial
view of the entire line of towers collapsing as the precisely timed charges go off. The most impressive aspect is that explosives
are detonated only on every other tower in such a way that the falling tower takes out the one next to it almost in a dominoes
manner (see yellow circle). 25 pounds of explosives were used rather than possibly 50 if every
tower's guy lines had been ...
Old vs. New Car Design - Video
recently while watching a 1960s era TV show I asked myself a question I've asked many times before: If one of those heavy,
bulky vintage cars constructed of thick pressed sheet steel body components, full steel tube frames, and cast iron 8-cylinder
engine blocks was to have a head-on collision with a modern car built with light-weight materials of composite construction
and minimal structural bulk, which would be the victor? My gut reaction was to think that the result would be like a
sledge hammer and a Coke can colliding; I'd rather be the sledge hammer.
I know cars are engineered to sacrifice the car to preserve the passenger compartment by
"Marble Machine" by Wintergatan
Maybe you are one of the more than 11 million people who have already viewed this
incredible "Marble Machine" video, by Swedish musician Martin Molin. Molin
designed and built his wooden music machine using aircraft plywood, ball bearings, Lego blocks, pressure transducers, plastic
tubing, lengths of wire, springs, and a host of other off-the-shelf components, none of which appear to have required custom
metal machining. The huge wooden gears were designed on his computer, ut out on a band saw, and assembled with glue and
screws. 2,000 metal marbles are the lifeblood of the instrument which, by function, must be classified as percussion. Even
the integrated base guitar is ...
iPhone 6 Plus vs. Samsung
Galaxy Note 3 - "Will It Blend?"
is no denying Blendtec founder Tom Dickson has earned the title of überBlendermeister with his online "Will It Blend?" series of videos. Using his company's
Total Blender, Tom has over the years inserted, among many other things, popular and often expensive high-tech devices,
and then pressed the appropriate button on the machine to start the action. Since its beginning in 2007, "Will It Blend?"
videos have documented in a combination of full speed and slow motion the pulverizing of iPhones, iPads, Galaxy phones,
Windows phones, Kindles, laser pointers, wii remote controls, Xbox 360 Kinect, a hearing aid, a video camera, magnets, and
even a cassette tape. In the most recent episode, Tom hosts a …
You might recall seeing the video of
Boston Dynamics' "Big Dog" robot that is part of a DARPA project developing battlefield automatons capable of carrying heavy
loads at a swift pace over rugged terrain. Their newest humaniod, called "Pet-Proto," is enough to give you nightmares. Add a few lowpass filters on the joint mechanics and this
boy would look like it came straight out of the Transformers or Terminator movies. One big hurdle that has to be overcome
is the power source. Big Dog has an internal combustion engine driving a hydraulic pump (electronics probably work on batteries),
and this Pet-Proto dude has hydraulic lines from an external supply. The robots are capable of autonomous decision making
and are guided and motivated by GPS, LIDAR, ground sensors, gyroscopes, and other super-sophisticated devices.
Crystals Go to War
Many thanks to Kevin,
of Roanoke, VA, for sending me a link to this documentary video covering the entire
production chain for radio crystals as filmed by Reeves Sound Laboratory,
in New York, NY. It was produced during World War II so the methods used are not anywhere near what is common today.
What is the same, fundamentally, is the ingenuity and hard work that goes into developing a new technology, and particularly
the effort needed to move to high volume production. As with most of these vintage factory films, a few aspects of normal
practices of the era are immediately apparent. First is the near utter lack of personal safety devices on machinery and
accessories for workers. Fingers run perilously close to diamond-impregnated crystal dicing blades, unprotected hands and
arms are submersed in oils and cleaning solutions, no ear protectors …
Videos of automated factory fabrication
and assembly lines are awesome. Watching the robots sling metal panels around for presses using hundreds of thousands of
pounds of pressure to stamp out body panels for the Tesla Model S electric car is an inspiring reminder of how ingenuous
and capable our fellow homo sapiens can be in spite of politicians' best efforts to enslave an underclass voting bloc of
slackers. Think of the amount of knowledge required to conceive of and execute the processes show in this video - metallurgy,
robotics, software, production planning, material sourcing and handling, factory environment, structural analysis,
safety, testing, budgeting, training, union demands, human concerns, massive governmental regulation, surface finishing,
marketing, work flow, and a host of other issues. That doesn't even include the brainpower necessary to plan, design, test,
and build all the electrical and electronics parts of the vehicle. Utterly amazing. It takes 3-5 days from beginning to
end to build a Model S. Even back in the 'old days' when most of the labor was manual, film reels showing masses
of humans working together to make a complex piece of machinery like a Ford Model T will bring a tear to the eye of
any self-respecting tech aficionado.
Turn Your Smartphone
into a 3D Hologram
How does anyone even think of this stuff? This video demonstrating how to turn your
smartphone into a holographic projector was posted by Mrwhosetheboss
on August 1, 2015 and has over 10 million views already - and it's no wonder. He doesn't mention on the video what inspired
the idea. A clear plastic CD jewel case cover it used to make the projection surface and specially created videos that project
onto the four faces are used to create the holographic effect. The concept reminds of a little multi-faceted mirrored device
that used to be sold which sat in the middle of a record player and turned flip-book
OK Go - "I Won't Let You Down"
OK Go is perhaps best known for sophisticated videos that require
extremely high levels of choreography. Their I Won't Let
You Down video was posted on YouTube just yesterday and it has nearly 2.5 million views a day later. Back in 2010
I posted their Mousetrap-like This Too Shall Pass
video; it now has more than 45 million views. Two major aspects of high technology are featured here: Honda's UNI-CUB β
robotic unicycle and the use of a remote control
octocopter drone for filming
the video. Honda is not selling the UNI-CUB β yet, so Honda must have been involved in the effort; the OK Go video
is featured on the ...