Why did so many German soldiers go to war for Hitler?
I guess most of them went to war because they would have faced jail or execution if they hadn't.
This is true for most wars I believe.
This could be the answer
on
Abusing the GPL?
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· Score: 2, Informative
earlytime wrote:
from the GPL:
"The source code for a work means the preferred form of the work for
making modifications to it. (...)"
IANAL, but I think this is the answer, although it has not been interpreted in the right way in the previous posts:
If we interpret "the preferred form of the work for making modifications" as "the form the company uses for making modifications" then the company has only two choices after the first release of the software:
They make modifications to the obfuscated form. Then they legally circumvented the GPL, but for a large project this is obviously not a feasible approach.
They use the actual, unobfuscated source code to work on the second release. Then they have to declare it "the preferred form" and release the actual source code.
I have a feeling it should be possible to get them with this...
exactly as much as ordinary hydrogen. That is, 1.67E-27 kg per atom.
interesting optical properties
again, exactly the same as ordinary hydrogen
how much energy it would give off if you mixed it with hydrogen?
a single hydrogen-antihydrogen pair would burst into a flash of 0.15 nanojoule (1.5E-10 Joule). That means, to boil a quart of water, which has a latent heat of 2500 joules per gram, you'd need about 1.5E16, or ten million billion antihydrogen atoms. This might seem a lot, but keep in mind that a coke can filled with hydrogen gas has about 1E28 atoms. Enough to vaporize a medium-sized lake.
how long it will be till someone makes a weapon out of it
that would be quite impractical, since a particle trap uses up a lot of energy. Ordinary nuclear bombs are much easier to store and quite as efficient.
"When the group exposed the particle trap to an electric field, some particles failed to move, suggesting that the charged antiparticles had bound together into neutral antihydrogen atoms."
That should answer your questions. Both antiprotons and positrons (aka antielectrons) are electrically charged. Therefore they are accelerated if you apply an electric field. The antihydrogen atom consists of one antiproton and one antielectron. Since the charge of antiprotons and that of positrons is opposite, the antihydrogen atom has no net electric charge and stays immobile in an electric field. So they guess that, if it doesn't move, it must be an atom!
There are of course more elaborate tests one can do, and will do. For example, ordinary hydrogen atoms
emit light at very specific
frequencies (maybe some of you will remember the terms Lyman series, Balmer series etc. from freshman physics). Since the antihydrogen is the exact "mirror image" of the ordinary hydrogen atom, these frequencies must be the same. Observation of these frequencies should yield definite proof (or reveal it as a flop:-)
Strangely enough, it didn't occur to them to test what happens if they put three clocks side by side... Antiphase synchronization seems somewhat hard with an odd number of clocks...
That's easy: each clock would antiphase-synchronize with its immediate neighbor only, so the leftmost clock and the rightmost clock would actually be in phase. A similar thing happens in a so-called antiferromagnet, where neighboring "molecular magnets" are trying to line up antiparallel.
Slashdot Mirror
I guess most of them went to war because they would have faced jail or execution if they hadn't.
This is true for most wars I believe.
IANAL, but I think this is the answer, although it has not been interpreted in the right way in the previous posts:
If we interpret "the preferred form of the work for making modifications" as "the form the company uses for making modifications" then the company has only two choices after the first release of the software:
I have a feeling it should be possible to get them with this...
:-)
Sorry, couldn't help myself there...
I'm gonna nominate them :-)
exactly as much as ordinary hydrogen. That is, 1.67E-27 kg per atom.
interesting optical properties
again, exactly the same as ordinary hydrogen
how much energy it would give off if you mixed it with hydrogen?
a single hydrogen-antihydrogen pair would burst into a flash of 0.15 nanojoule (1.5E-10 Joule). That means, to boil a quart of water, which has a latent heat of 2500 joules per gram, you'd need about 1.5E16, or ten million billion antihydrogen atoms. This might seem a lot, but keep in mind that a coke can filled with hydrogen gas has about 1E28 atoms. Enough to vaporize a medium-sized lake.
how long it will be till someone makes a weapon out of it
that would be quite impractical, since a particle trap uses up a lot of energy. Ordinary nuclear bombs are much easier to store and quite as efficient.
That should answer your questions. Both antiprotons and positrons (aka antielectrons) are electrically charged. Therefore they are accelerated if you apply an electric field. The antihydrogen atom consists of one antiproton and one antielectron. Since the charge of antiprotons and that of positrons is opposite, the antihydrogen atom has no net electric charge and stays immobile in an electric field. So they guess that, if it doesn't move, it must be an atom! There are of course more elaborate tests one can do, and will do. For example, ordinary hydrogen atoms emit light at very specific frequencies (maybe some of you will remember the terms Lyman series, Balmer series etc. from freshman physics). Since the antihydrogen is the exact "mirror image" of the ordinary hydrogen atom, these frequencies must be the same. Observation of these frequencies should yield definite proof (or reveal it as a flop :-)
That's easy: each clock would antiphase-synchronize with its immediate neighbor only, so the leftmost clock and the rightmost clock would actually be in phase. A similar thing happens in a so-called antiferromagnet, where neighboring "molecular magnets" are trying to line up antiparallel.