PBS Idiots

Paul Hovnanian P.E. · 2008-11-22T05:21:47+00:00

I was watching a program on PBS called 'NOW'. It seems that they musthave hired some art student to come up with some new screen graphics,which they place at the beginning and end of each story.The graphics consist of two horizontal bars, one near the top and theother near the bottom of the picture. Each one is populated by a randomseries of colored vertical stripes.This looks, at first glance, exactly like a digital TV signal startingto drop out. I was about ready to climb up on the roof and fix myantenna before I figured out that it was them doing it.** Best example of screwing with people's minds in the 'digital age' wasa CD that followed its last track with the recording of a phonographneedle bumping along the end record groove and then an automaticmechanism retracting the arm. -- Paul Hovnanian mailto:------------------------------------------------------------------Due to recent budget cuts, the light at the end of the tunnel hastemporarily been turned off.

Nov 22, 2008 71 Replies

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Mensanator 17 years ago

edle to

ward, but

teracts the inward

Ok, considering all this, which way does the tonearm move when it jumps the track? I have only ever seen a tonearm jump outward and replay the portion of the track it just played.

PJ claims it can also jump inwards. Perhaps he's referring to a pitiful portable picnic player instead of a turntable.

And there's a third type of tonearm aside from the two you mentioned. My turntable is a computer controlled laser-guided linear tracking device. The tonearm only pivots up and down, the tonearm is carried across the disc (I assume) by a worm gear and the cartridge is tangent to the spiral at all times. I don't know if such a device has an anti-skating mechanism, although when a scratch is encountered, it too jumps outward.

Is it possible it actually maintains the exact same radius and "going backwards" is due to the disc rotating under the fixed cartridge?

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Mensanator 17 years ago

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hich

asily

Hard to say, as Google Groups is useless in this regard (every one I search for takes me to the same message).

ted text -

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Archimedes' Lever 17 years ago

formatting link

Looks pretty neat. A little overpriced.

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StickThatInYourPipeAndSmokeIt 17 years ago

Phil is one of those not so rare idiots that actually think that his post links are the same for everyone.

If the idiot is going to do that, then he should hunt up, and use the actual google links to a message. That way, the idiot does not have to even know that his stupid links only work for folks on his stupid ISP's servers.

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JosephKK 17 years ago

Thanks for stating clearly all the stuff i used to be able to say. There have been several design for linear tracking and other compensation systems. My personal favorite is one of the laser turntables. No contact, no wear. BTW there is a very slight differential in speed of the two sides of the groove.

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Phil Carmody 17 years ago

My goodness, he's a worse hopeless case than even I expected. Of course, I'm killfiling him on the bits that he can't change, so I didn't get to see his stupidity in its full, ahem, glory.

Phil

I tried the Vista speech recognition by running the tutorial. I was amazed, it was awesome, recognised every word I said. Then I said the wrong word ... and it typed the right one. It was actually just detecting a sound and printing the expected word! -- pbhj on /.

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Matthew Russotto 17 years ago

The concentric end grove wastes the least space on the disc. The eccentric end groove was originally used to trigger the brake on a Victrola. Perhaps 78s originally did not have a fixed-location end groove, and so had to rely on the tone arm going out to detect the end of the record (and thus stop).

It\'s times like these which make me glad my bank is Dial-a-Mattress

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Mensanator 17 years ago

the

Did Victrola's stop? I thought you had to lift the arm off the disk manually.

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Ed Murphy 17 years ago

You lose.

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Jasen Betts 17 years ago

ah! that makes sense. thanks. (thanks all others too)

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Don Piven 17 years ago

Space is what keeps everything from happening to you.

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Spurious Response 17 years ago

No... It is you that is defeated.

You can't even spell the word, dipshit.

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