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Comment 3D TV screens were too small for some images (Score 5, Informative) 399

I think one reason 3D TV never caught on is that the screens generally were not large enough. There is a problem with a finite screen when objects appear near the left or right edges and relatively close to the viewer: the required binocular disparity is such that the image in one eye goes black (blank), leaving the image in only one eye. This is very uncomfortable, even if it happens for a brief instant. The screen needs to be large enough for the left and right edges to be nearly out of ones peripheral vision so that then one eye goes blank it is less noticeable. Most movie theater screens are large enough. But still, the director needs to be aware of this problem and be careful not to place up-close images near the edges of the screen. I think James Cameron knew this in making Avatar. I'm sure that Martin Scorsese did not know this when he made Hugo, as this happens many times during that movie. With TV, especially live action sports, I suspect that this might be hard to control.

Of course, the other problem is the disparate needs for the viewer to focus at one distance (the screen) and cross the eyes at another distance (the object). Most people adapt to this nearly instantly but I suppose even they find it a little fatiguing.

Comment More Crap Science (Score 1) 560

This work goes beyond the normal logical confusion of "correlation implies causation." It's just a really poorly designed experiment. A better experiment would have compared blood flow in brains of people who have never used marijuana and them had them use marijuana and then again measured blood flow. (This also lacks a control but at least it measures something useful. And I spent all of five seconds coming up with it and I'm not in the field. So.....)

So what's wrong? Maybe people who have abnormally low brain blood flow are prone to using marijuana, perhaps even to _increase_ blood flow, but less than perfectly. And instead of _causing_ psychosis, maybe people who are psychotic are prone to using marijuana. I know people who have told me that they need to use marijuana to feel normal, and maybe normal for them means non-psychotic.

Submission + - Does NASA intentionally add artifacts to Hubble photos?

iliketrash writes: Hubble photos, as amazing as they are, invariably include bright points such as stars which include sidelobes, as for example in this beautiful shot http://www.popsci.com/gorgeous.... Notice the "spurs" that emanate from some of the bright white spots which are coincidentally aligned perfectly with the frame of the picture. Surely these are not flaws of NASA's fine imaging system but are artifacts added to meet the expectations of the unsophisticated viewer to match the imperfect optics that many of us experience in our normal viewing.

Comment It's a design patent, not a utility patent (Score 2, Informative) 127

The OP apparently does not understand the difference between a design patent and a utility patent. He/She should learn this before calling this design patent stupid or whatever other inappropriate language was used. Utility patents describe a function; design patents describe only the appearance.

Comment Julia needs arbitrary array indexing base (Score 4, Informative) 106

Any language that purports to be a good for technical computing needs to get away from a forced base for indexing arrays. No, this is not a 0 or 1 problem. Arrays should be numbered from whatever the programmer specifies. The Pascal-type languages including Ada have this feature and it prevents many many errors. Maybe the $600K can buy this, but somehow I doubt it as this fixed-index-base is usually in the mindsets of the language's designers.

Comment Re:total bullshit? (Score 1) 344

Honestly, if she was using the e-mail address associated with that SMTP server before she become Secretary of State, yes.

Geez, do your homework. Here, I'll do it for you.

whois clintonemail.com turns up Creation Date: 13-jan-2009.

On the first screen for Hillary Clinton at Wikipedia: "In office January 21, 2009 – February 1, 2013"

So, yea, [sarcasm] she did use it before becoming Secretary of State.

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