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Comment Re:Conservation of momentum (Score 1) 167

How does heat affect the orbit?

You vaporize one side of the object, and the expanding gases provide some thrust.

I'm not sure you'd even need to vaporize anything. Ever seen one of these?

I assume you're implying radiation pressure could push things out of orbit. Perhaps, but that device doesn't demonstrate radiation pressure.

The Crookes Radiometer depends on air molecules being present to work. It spins with the dark side of the veins trailing, in the opposite direction you would expect from light pressure (for which the light side has a greater impulse due to recoil of the photons instead of absorption.)

In theory, radiation pressure could indeed push objects out of orbit, but I'm too busy/lazy right now to run the numbers to find out how much energy it would require. Also, consider Newton's third law: any decent impulse given to space junk by the ISS using radiation pressure would affect the ISS as well.

Comment Re:An alternative to the death penalty (Score 4, Insightful) 591

Every execution is a 100% successful deterrent - the executed criminal will never again commit a crime. Beat that.

That argument is defeated easily. If a criminal convicts a crime for which the sentence is death, then obviously the sentence was not a deterrent.

Any deterrence beyond that is a "nice to have", but not required.

On the contrary. The purpose of a deterrent is to discourage someone from committing a crime in the first place. That is fundamental, not "nice to have."

Comment Re:An alternative to the death penalty (Score 0) 591

Killing people diminishes us - even if they were evil scumbags who deserved worse. I don't need to look to other cultures for examples and counter-examples of executing people. I don't need a popularity contest about how many other people don't like the death penalty (or the converse). Let's just go with "no killing" because it is right and be done with it.

I agree completely. I just thought I'd start the thread with the pragmatic reasons, because they tend to make proponents less defensive. And that reminds me of another one: the lack of evidence that it is an effective deterrent compared to incarceration:

http://www.deathpenaltyinfo.or...
http://www.washingtonpost.com/...
http://www.amnestyusa.org/our-...

Comment Re:Godwined before it even started (Score 1) 301

He has no direct descendants; he poisoned his 6 kids before he and his wife committed suicide.

So Goebbels wasn't all bad in the end - after all, he did kill Goebbels.

The eldest child was 12 when she was poisoned, along with her siblings. His children could hardly be considered guilty of anything.

The guy was bad news. Even killing himself hardly qualifies as an act of redemption.

Comment Re:Lets use correct terminology. (Score 1) 177

There's a difference between being fired and laid off (just ask your local unemployment office).

AFAIK, the unemployment office treats fired and laid off the same way. What they might treat differently is a voluntary resignation. The resignation would have to be truly voluntary, i.e., you were not forced to resign in some way, otherwise it would be the same as being fired.

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