Boldewyn

Germany

manuel-strehl.de

Age: 35

Boldewyn is the name of the donkey in German fables (at least, the ones from Goethe). Despite its bad name, a donkey is an animal with its own head and quite a portion of wit.

As someone pointed out once, if you say to a horse to jump down that abyss, it would happily do so, whereas the donkey would give you a kick where you deserve it to.

And someone else pointed out, that laziness is a core requirement for a good developer...

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comment compatibility html document
I pasted your code there, and it says: "Congratulations, no error!" Do you enter an URL? Do you have a proxy like CloudFlare before it?
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awarded Booster
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comment How to mark-up phone numbers?
That doesn't surprise me. The landscape was fundamentally different in 2009, when the answer was given. Also, you need a third-party program, that registers for the callto: scheme, like Skype. Chrome itself has no idea, what it should do.
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awarded Caucus
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awarded Good Answer
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28
awarded Supporter
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awarded Nice Answer
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awarded Notable Question
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awarded Editor
Aug
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revised Stealth in Space: How realistic is it?
added 181 characters in body
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comment Stealth in Space: How realistic is it?
Ah, curse you, differentiable manifold! You are right, that the energy needed to create the almost-closing opening makes the answer leave the hard-science tag realm. Also I forgot about vacuum fluctuations, so that at any time something will be close to the pocket (as small as it can feasibly become) and give away its position by lighting up like a Christmas tree. Thank you for your persistence!
Aug
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awarded Informed
Aug
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comment Stealth in Space: How realistic is it?
@ThorstenS. I'm quite firm what that tag means. (I also hold a master's degree in Physics, if that is of any reassurance to you.) What you see in the image above is a large opening, allowing to detect a black hole by distortion of the background radiation. If you assume the hole to be closed more and more to create said pocket, you diminish that effect until not detectable. If that pocket would lose its connection, you'd created a separate pocket universe , which would however be unfortunate for the crew of the ship.
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awarded Teacher
Aug
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comment Stealth in Space: How realistic is it?
That depends entirely on the time span the ship remains in the pocket... If they have heat stores, they could take it for a time. Assume, they have tanks of water, that they let freeze in the vacuum. A human produces ~350000 Joule per hour, which means, it heats a kg of water by ~84 Kelvin in that time (1J heats 1g H2O by 0.239K). So 1kg of vacuum-frozen water would last to compensate for a human for 3-4 hours until it starts boiling.
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comment Stealth in Space: How realistic is it?
Not necessarily. If the opening is chosen small enough, that there is no interaction between space and the pocket, then no heat would escape (kind of lika an event horizon). However, of course, that would lead to the pocket heating up. On the other hand, if the seeker is stationary (an observatory on a planet, e.g.), it might be possible to disguise a small bright spot as some kind of comet or other natural phenomenon.
Aug
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answered Stealth in Space: How realistic is it?
Aug
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comment Bash: how does 'sort' sort paths?
No problem. Despite the "Warning" it's actually easy to miss (especially the consequences of the setting).
Aug
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comment Bash: how does 'sort' sort paths?
@KarolyHorvath thanks! I noticed myself and corrected it meanwhile.
Aug
11
answered Bash: how does 'sort' sort paths?
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