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Your RF Cafe
Airplanes and Rockets:
Note: There have been other videos posted, but I often forget to link to them on this page. Please use the website Search box at the at the top of the page to look for something you don't see here since many of the videos I have featured are not on these archive pages. Thanks.
iPhone 6 Plus vs. Samsung
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