Two-Channels, one groove - RSD Academy
They put two great channels in that little bitty groove - Stereo vinyl recording - RSD Academy - YouTube
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Any idea when construction workers started wearing hard hats?
Not sure. Maybe in the '60’s? By the '70’s when I started they were mandatory but still not highly policed.
I recall wearing one in 1965; did not know history then. Possibly due to Workers comp insurers insisting after many claims.
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Interesting explanation of dB
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A quirky group, in many respects.
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I didn’t watch the lecture. Way too long for me but brings back a funny memory. I was finishing my masters in systems engineering at the Air Force institute of technology (AFIT) when I applied, and was accepted, to the PhD program. At that point I was gassed. I had put a huge effort into my education, had two small girls, but always ambitious. One of the first classes was vibrations. I thought I was hot stuff and put in a very modest effort. Took the first test and failed miserably. Worst score on a serious engineering exam in years. As luck would have it, that very day, I attended a briefing on a new Air Force program offering incentives to prior enlisted officers (after gulf war I) to separate early with a nice financial stipend. The deal in the military is if you take an offer like a phd program and fail, your career just hit a dead end. Well I ran to take the money and separated from the active Air Force. Ended up with my current job, a stable family life and finished my military career (did love the service) in a Chicago national guard unit. All because I failed a vibrations class.
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I’d call that making lemonade out of lemons. Life sure has us making some odd blind turns that end up being ok.
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I found this quite interesting. Got to give them kudos for doing it all from soup to nuts.
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Worth the 18 minutes +/- of your time…
[PS: All hail the MOSFET!]
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That is freaking insane! You have to have a death wish to do that.
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No Doubt! He’s going so fast too, it almost seems sped up. I love the Doppler effect of the crowd noise as he flies by. I can’t imagine the amount of focus it takes to keep your concentration with all the cheering, whistles, etc.