Forgot your password?

Comment: Re:So in the future ... (Score 1) 85

by khellendros1984 (#47969787) Attached to: The UPS Store Will 3-D Print Stuff For You
I think you're missing the point. Mirix was trying to say that injection molding will always be cheaper, for mass production ($5 being roughly the cost of a mass-produced, injection-molded chair). 3D printing will never match the per-unit price of mass-producing items, but it *will* (and has already started to) make the production of small-run items and prototypes much, much cheaper.

Comment: Re:There is no "almost impossible" (Score 2, Informative) 231

by khellendros1984 (#47941753) Attached to: Apple's "Warrant Canary" Has Died
If the key (the pad) is perfectly random, then there won't be any pattern. If the key was something like the first chapter of Moby Dick, and it's known that the key is an English-language text, and something is known about the contents, then you've got some patterns to work with, and it might be possible to retrieve the plaintext (and the key, simultaneously).

If the key is perfectly random, the plaintext won't be retrievable from the ciphertext, since for any candidate plaintext that you could construct, there would be a corresponding and equally-likely key paired with it. Trial and error can't decrypt a message encrypted via random one time pad.

Comment: Re:Fahrenheit? WTHolyF? (Score 1) 210

by khellendros1984 (#47893793) Attached to: SanDisk Releases 512GB SD Card
ComputerWorld seems to be the source of the "1000-fold increase" quote. Then again, they also state that 512GB is "more than half a terabyte", so they're at least consistently inaccurate.

As for the temperature, the Fahrenheit scale is used on SanDisk's product page for the new card. Presumably, that's because Sandisk is an American company, and that page is marketing to a non-scientific audience. In the U.S., that means Fahrenheit would be used.

Comment: Re:Computers and Computer Science (Score 1) 143

by khellendros1984 (#47893201) Attached to: Harvard's CompSci Intro Course Boasts Record-Breaking Enrollment
That's true, in the theoretical sense. Algorithms can be described in English or in mathematical notation. Runtime complexity of an algorithm can be calculated by hand. Most often, we want a way to also evaluate those algorithms, to take measurements on their behavior, and to understand them more intuitively. Computers are useful for that, but only if there's have a way to give them instructions. It follows that a student must be taught the rudiments of programming to have an automated method to explore the properties of algorithms.

This is analogous to the use of scientific instruments in astronomy. Everything can be done by hand (technically), but tools make things quicker and easier. They act as force multipliers to make more things practical to do in a shorter amount of time. For astronomy, that means that the astronomer doesn't need to be a million times closer to the thing they're observing in order to see it clearly. For computer science, it means that I don't need to evaluate a billion algorithmic steps by hand.

Comment: Re:Seems fine to me. (Score 1) 184

by khellendros1984 (#47877987) Attached to: Device Boots Drones, Google Glass Off Wi-Fi
I find many of the things that people choose to *do* in a free society distasteful. That doesn't mean that I want to restrict rights or impose my will on others. I'd actually rather avoid that as often as possible. It's not my place to tell someone else what to do or think, if they're not actually hurting me. My reaction is purely emotional, and I don't like for my emotions to dictate my actions.

I don't expect respect from people that don't know me, but for something to be called a "dick move", it actually has to be an action. But go ahead and keep making the assumption that what I say on the Internet maps in a straightforward way to my actions in life. Seems to be par for the course.

Comment: Re:video is OS specific.... why again? (Score 2) 77

by khellendros1984 (#47876297) Attached to: Amazon Instant Video Now Available On Android

Or that the company that funded the video's production wants some assurance that a subscriber won't just tee a rental into a capture program and distribute it without charge to the public.

That's OK. Some clever person will have already figured it out for me. I don't know if they strip HDCP-protection from video and capture the stream, read it out of memory while decoding, decrypt DVR video files or what, but I've no video that I've ever looked for was actually protected by restrictive streaming requirements.

If the executives of a production company feel assurance that their stream can't be ripped in one way or another, then they're living in a fool's paradise.

Comment: Re:Maybe driver vs passenger doesn't matter (Score 1) 364

by khellendros1984 (#47874179) Attached to: Text While Driving In Long Island and Have Your Phone Disabled
There are other scenarios where an SMS or MMS may be better. During a home invasion, when you don't want to expose your hiding place by speaking. In a situation where it would be useful to send a picture. In a location with weak signal, where a text transmission may get through even when you can't connect for a voice call. And then, you've got the cultural issues. A lot of people (especially the younger ones) barely use speech calls on their phones, any more, and a text may be the first thing that comes to mind when trying to get help.

A cell phone is a flexible device. I don't see a problem with enabling its use in whatever way we can, when it comes to helping someone in an emergency situation.

Comment: Re:Seems fine to me. (Score 1) 184

by khellendros1984 (#47873799) Attached to: Device Boots Drones, Google Glass Off Wi-Fi

Lose your distaste.

I'm sure that there are things in the world that you find distasteful as well, and it would be just as effective if an anonymous internet poster said to"lose your distaste" for those things. It may happen through long exposure and desensitization, but it ain't gonna be purely by your say-so.

Photography isn't a crime. Neither is staring intensely at someone and refusing to stop if they're clearly uncomfortable or ask you to. That doesn't mean that it's not a dick move.

Comment: Re:Seems fine to me. (Score 4, Insightful) 184

by khellendros1984 (#47868021) Attached to: Device Boots Drones, Google Glass Off Wi-Fi
I don't like the idea of anyone else recording me, either (stores, etc), but I find the benefits of getting food, goods, doing my banking, etc outweigh my distaste. It doesn't have anything to do with Google Glass specifically.

because you don't have a legal leg to stand on

Why would that be the first thing that comes to mind? I'm not planning on suing someone for recording me. That would be pointless. Just because I have to put up with something to take part in society doesn't mean that I have to like it (or that I wouldn't appreciate places that share my viewpoint on the matter).

Comment: Re:Seems fine to me. (Score 1) 184

by khellendros1984 (#47867785) Attached to: Device Boots Drones, Google Glass Off Wi-Fi
Am I in that geek's house, or on their property? When I'm in a store or a bank, I'm on their property, and they have an interest in recording me that I understand. Same with the cop; he's doing something comparatively dangerous in the execution of his duties. He's a public servant. A private citizen in a public place recording me for unknown purposes? That's unsettling. Personally, I wouldn't ask them to stop, but I'd be appreciative of a business that forbid its patrons to film other patrons without their permission.

Comment: Re:You have a broken sense of responsibility. (Score 1) 184

by khellendros1984 (#47867153) Attached to: Device Boots Drones, Google Glass Off Wi-Fi
An 802.11-compliant device that receives a deauthentication message is required to terminate its connection to the base station. As such, if you transmit a deauth, you didn't just "express an idea", you gave a command to a device that's required to obey it. It's like saying "I'm not responsible for the damage caused by hitting the self-destruct button; whoever wired the button to the explosives is". When YOUR actions cause something to happen that wouldn't have happened if you didn't do anything, then YOU are completely at fault.

Whoever selected wifi is negligent, but that doesn't fully absolve the deauthenticator of responsibility.

COBOL is for morons. -- E.W. Dijkstra