Comment Re:Can someone explain... (Score 1) 262
Most NPC problems fall into this category.
Actually, by definition, *all* NP-complete problems fall into this category (unless P = NP)
Most NPC problems fall into this category.
Actually, by definition, *all* NP-complete problems fall into this category (unless P = NP)
Last I heard, jets were going as fast as possible (despite the large increase in fuel consumption from near top speed to top speed) because of the savings in staff costs. So, fuel savings wouldn't necessarily hep that much.
For everyone that loses money, some one else would gain it.
The market is not a zero-sum game.
Well, if you can add a field at run-time then by definition you can't check its presence at compile-time.
More importantly, it is runtime-resolved.
I personally would consider this a disadvantage.
I like my type-checking at compile-time thank you.
Other than the "convenience" of being able to get at your email, a crutch for a stunted sense of direction, and a safety net for poor before-hand planning
These are all excellent reasons for using a smartphone (and you don't need a stunted sense of direction to find maps useful). Anything after that is bonus.
> besides intercourse
What makes this one more logical than any other, especially since you claim that having children is illogical? I'm curious.
Also, you seem to assume that being logical means maximizing productivity. Personally, my goal in life is not to be the most productive. Entertainment is actually closer to it.
But don't think that Lisp is always the right language for scripting your text editor (dodges blow from Emacs partisan).
Lisp is functional, but not statically typed. Loses most of the benefit IMO.
12C -> 4He + 4He + 4He is exothermic. (The reverse reaction is an energy source for stars under some circumstances.)
You meant endothermic then.
You mean like a solar sail?
information theory
You probably mean "cryptography". Information theory is related but different.
Anyway, cryptography makes a distinction between "obscure" and "secret". The idea is that good cryptography requires a secret. If something is in your possession (like a program on your disk), it's not secret to you (exception could be made for some secure chips that are designed specifically so that you can't read their secret).
How is calculating complexity "trivia"? Were the algorithms only described by name?
> How sensitive would a device have to be, and how fast would it's
> processor need to be, to detect a 10mph difference from the
> frequency of a radio signal coming from space I wonder?
Well, GPS works at about 1GHz; I think we can assume that a GPS receiver can count the number of cycles.
10mph vs speed of light is about 10^-8, meaning about 10 cycles difference in a second. Seems measurable (GPS also provides very accurate time measurements; there might also be possibilities of measuring interference between signals from different satellites). The link I gave indicates an accuracy of about 0.5mph using a combination of doppler shift and location change measurements.
Interesting.
Either way, the fact that a given position is off doesn't really imply that the speed is wrong (as long as the position is consistently off).
Also, it's the first time personally that I've said that, and there is obviously reason to think that some GPS receivers do use the doppler shift, so please don't be so mad.
GPS doesn't measure speed by looking at how your position changes; it uses the doppler effect, which is fairly accurate.
http://gpsinformation.net/main/gpsspeed.htm
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