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Comment Depends on the size of your blind spot (Score 1) 652

I drive a minivan. The backup camera cost $1500 and came with free nav. I can't imagine backing out of the garage or driveway where I live (with 3 kids) on to my street (lots of kids) or on my kid's daycare or school parking lot without one. But when I drive the sedan, the blind spot is much smaller; I'm not so concerned.

Comment Re:Don't do this if you're very unfit. (Score 1) 437

Im not knocking good hard exercice, but
It is impossible for a healthy person (no matter how unfit) to injure his heart by working it hard
seems overreaching. I just found this quote from the American Heart Association:
"Extreme exertion can sometimes cause heart failure in people with normal hearts"

Comment Re:Are yellows in Denver really short? (Score 1) 433

Shortening yellows where there are cameras is truly of grave concern. And yes studies have shown that longer yellows can make an intersection safer and reduce incidence of violations - at that intersection. But there seems to be a paradox wherein drivers may become accustom to the longer yellows, diminishing the benefits, and making those intersections where yellows have not been extended more dangerous.

Comment Re:Other Motivation? (Score 1) 101

Is it possible that Garmin and others will benefit from their older devices not working well in the near future as we will have to upgrade? And they can lay the blame with someone else. Maybe they're not as unhappy about this as they would have us believe. I seem to recall hearing that the GPS system we use now is being depricated. Sats are failing, and the military is not replacing them, but they have a new better system on the way.

Comment "I'd think a battery would be a lot simpler" (Score 1) 325

You would, but some data centers and other facilities are replacing batteries with flywheels. They yield better performance and long-term reliability to start diesel motors, bridge demand before generators are online and regulate voltage through brownout and flicker: http://www.vyconenergy.com/pages/flywheeltech.htm

Comment Re:Several? (Score 1) 389

...Smaller populations drift genetically much faster than large...

But the population needs to be large enough to provide sufficient choice in copulating. Assuming everyone has roughly the same chance of reaching maturity, it is the choice in selecting a mate that drives genetic drift.

(Slashdotters may not be a good group for discussing choice of mate. Sorry guys.)

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