New Video: Parametric Oscillations

It's a bit off-topic from the channel, but hopefully fun.

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Tim Wescott 
Wescott Design Services 
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Tim Wescott
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Wonderful! Ed

Reply to
ehsjr

Thanks! I thought it was shitty.

That's not a comment on your opinion -- I often finish a talk or a book or whatever thinking "gawd, why am I not covered in rotten vegetables?", only to be accosted by people wanting to _thank_ me for my work.

OTOH, I can finish something up, think "hey, this is pretty good!", inflict it on an unsuspecting world, and find out that no, in fact, it was a steaming pile of crap (very powerful! Makes things grow!).

I've decided that I'm not a very good critic of my own work.

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Tim Wescott 
Wescott Design Services 
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Tim Wescott

Well, i thought that the editing done was implemented very nicely. The resulting "jumps" or "gas" were rather smooth and only a very professional system could improve it, along with multiple time-consuming re-enactments for more accurate body placement and hand-motion merging. In a word, this ain't Hollywood and we are not seasoned or professional actors. WELL DONE!

Reply to
Robert Baer

I read somewhere, on the blog of some YouTube biggie, that if you're doing a "talking head" video then the quality of the sound is far more important than getting the video perfect. I also noticed that quite a few of the "talking head" video channels that I watch will have even more sudden visual jumps than I use, and I just don't notice them unless I concentrate.

Everything is recorded on a Samsung Galaxy S5 cell phone, and edited using kdenlive open-source video software. I'm pretty amazing that I can do so well on stuff that I could get for free, or had lying around.

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Tim Wescott 
Control systems, embedded software and circuit design 
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Tim Wescott

Yeah, the few I've done on my own had crap for sound, which did, indeed, make them horrid.

Agreed yours look quite good.

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Reply to
eric.jacobsen

I actually had to discard about 1/3 of a video's worth of footage on this one and re-do it. I had the lapel mic contacting my chin, and even with a smooth shave every time I moved my head the damned thing scratched.

Fortunately I did a spot check that 1/3 of the way in, or I would have had to re-record everything.

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Tim Wescott 
Control systems, embedded software and circuit design 
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Tim Wescott

Thanks.

Would working a yo-yo be an example of PO? As the yo-yo descends and unwinds, you pull up on the string to speed it up, adding energy.

Cheers

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Clive
Reply to
Clive Arthur

The whole term is kind of a funny one -- it's bound up in 20th-century science wanting to make all differential equations linear and time invariant (because then you can solve them on paper, before you die of old age).

As for your questions: find three or four college physics professors. Get a couple of pints of beer down each one, then pose your question. Stand back.

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Tim Wescott 
Wescott Design Services 
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Tim Wescott

ROFL. Reminds me of

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Christian

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Christian Gollwitzer

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