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Comment Re:contempt? never! (Score 1) 213 213

So what ? You seem quite polarized on Joffrin. Indeed, he's very representative of a particular leftist current of thought that is present in France and more generally in Europe. However, this is just this: a current of thought. It is not like if it was the dominant current of thought.

Comment Re:Absence?! (Score 1) 595 595

Lets make every one change how to dial a phone! Yeah, we all can dial circuit numbers.

First we had 6 numbers. Then we had 7. Then we had 8. Finally, we now have 10. And I do not even talk about region-specific prefixes that were used at a time but are now obsolete. So yes, we did make everyone change how to dial a phone, at least in my country.

Comment Re:What about a bus? (Score 1) 280 280

I think you got your ordering wrong. From your source:
The overall energy intensity of the intercity bus mode, which is measured in BTUs (British thermal units) per passenger-mile, is 713, compared with 2,441 for intercity passenger rail (Amtrak); 3,999 for certified air carriers; and 4,238 for public transit buses. Automobiles experience 3,671 BTUs per passenger-mile.

Comment For a smartphone a TOF camera could be more suited (Score 2) 62 62

For a smartphones, I'd rather expect so-called "time of flight" cameras to catch-up before LIDARs. Basically, you have an array of LEDs which illuminate the scene using sine or square wave intensity modulation. The imager works at a high framerate (or uses other windowing techniques) to extract the phase shift in each pixel, which gives you 2D ranging information. Of course, there is still the problem of phase unwrapping.
So in this kind of system, you trade off dynamic range for accuracy and cost. As most measurements with smartphones will probably be performed at short distance, this system seems more suitable than regular LIDARs.

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