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Comment: Re:What if he forgot it? (Score 3, Informative) 267

by camperdave (#47418613) Attached to: UK Computing Student Jailed After Failing To Hand Over Crypto Keys
It doesn't matter. In the UK, you face jail time for not turning over passwords... even if you can prove you never had them. If the cops think that a photo has steganographically hidden data, you must produce the decryption key, or face jail time. If some anonymous so and so sends you a floppy disk, or USB stick, you must produce the decryption keys to any files on it.

Comment: Re: 2 months, but they all quit! (Score 1) 129

by camperdave (#47410441) Attached to: My most recent energy-saving bulbs last ...
No. It's *YOUR* CFLs that are complete junk. I bought a bunch (Philips Marathon, 900 lumen, 15 Watt) about five or six years ago and have yet to have one fail. I don't have any of that "build up to full brightness" nonsense I've seen in other bulbs. It's full brightness right away.

So, given the experience that I and a significant number of CFL purchasers have had, is it any wonder that we scratch our heads at your bad luck and wonder about your power quality.

Comment: Re:Christmas is coming early this year (Score 1) 658

by Reziac (#47408499) Attached to: TSA Prohibits Taking Discharged Electronic Devices Onto Planes

That's an interesting insight. I suppose the logic is that you don't want to plug it into the wall to prove it's a working device, because OMG that might utilize the higher current to set off a bomb. (I see no reason why internal batteries couldn't do the same job, with a lot more control at that, but, TSA logic.)

I wonder how they'd respond to my laptop, which is old enough that the battery is entirely dead, and it's not worth spending $150 to replace a battery in a laptop now worth about $50. It works fine when plugged into the wall, and not at all otherwise. (When I do drag it around, I also take an extension cord.)

Comment: Re:How do you defeat dogs? (Score 1) 415

by Reziac (#47408227) Attached to: Police Using Dogs To Sniff Out Computer Memory

And it would only take once for a bright dog to connect "scent of activated charcoal" with "target". They DO make that sort of association.

As to the various things hunters attempt to disguise their scent, I'm too lazy to look for it right now but I recall seeing a study on the effectiveness of scent-disguising potions and amulets, and the conclusion was that they accomplish about the same as any magical potion or amulet.

See also above where I talk about distinguishing one scent from many, as dogs do all the time anyway.

Comment: Re:How do you defeat dogs? (Score 1) 415

by Reziac (#47408155) Attached to: Police Using Dogs To Sniff Out Computer Memory

The fallacy is that the smell of dirty diapers will overwhelm and disguise the scent of the target. The truth is that dogs with good noses (which not all have) are quite capable of sorting out different scents from a multitude (in fact they do this every time they follow ANY scent, since almost everything in the world HAS a scent), and merely covering up the target scent is usually insufficient. Also, they can detect a mere handful of molecules, what any object might naturally ablate. Furthermore, experienced dogs learn that if you lose one scent, you follow an associated scent, in this case the foot track or bodyscent track of the person who hid the bagged target.

I used to live where some prior resident had thrown beer cans around the front yard, but across the years two feet of dirt had blown in over 'em (very fine dirt, very densely packed). I was mystified by the deep narrow holes my dogs were digging, til I realised the goal was an aluminum can, two feet down, which the dogs evidently scented and targeted. (Dogs tend to home in on galvanic reactions and electronics in general, even without training. This is why keyfobs are a fave chewtarget.)

[Pro dog trainer here]

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