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Comment Re:They don't know how laws work (Score 1) 26

but you can't restrict a company or citizen from volunteering the data.

"the data." Whose data is it actually? I consider that information concerning what I'm doing or where I am still belongs to me. Even when observed by someone (or something) else. I can make a copy of Disney's latest Blu-ray disc. But it's still their property and I'm not free to distribute it as I see fit.

The same thing holds true for person's actions witnessed by another. I can't be expected to bear witness as if that person has no interest in my observation. There are mechanisms in place to compel me to do so should these actions be in the public interest. Specifically, a court subpoena.

Comment Re:Air Conditioners save lives (Score 2) 171

There is a strange movement in Europe against Air Conditioners.

Yes. But a large part of that is the difficulty in retrofitting it to their older buildings. In the USA, we have a large installed base of forced air heating. Which can be upgraded to a heat pump. Also, we (USA) have more stand alone single family dwellings. So remodeling or even piping in split systems is easier. And with a heat pump, you not only get more efficient heat, but A/C as well.

hate and refuse to promote air conditioners often use refrigerators and freezers in the same homes.

Completely different applications. Refrigerators/freezers are self contained and much smaller than an entire house. And they prevent food spoilage. A much more serious problem than hot weather.

Comment Re:They are getting older (Score 3, Interesting) 17

But large black holes also have extreme gravity

But do they really? They have greater mass. But the Schwarzschild radius is (sort of) defined by that distance from an object's center where the escape velocity is equal to the speed of light. And that is what we think about when we say "gravity". So this value should be the same at the "surface" of every black hole.

If this is the case, then the effects occuring near this surface would be the same for all black holes, given an identical height above it. And given that, we would have trouble picking apart a redshift due to extreme distance (Hubble) from that caused by events close to that surface (gravitational red shift).

So if we can't really tell how far away it is, we can't reliably estimate its energy level.

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