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Study Shows How Humans Can Echolocate

godel_56 Artificial Clicker/ (136 comments)

I wonder if some sort of artificial pulse generator would be an improvement, rather than producing the clicks yourself.

You'd be guaranteed repeatability and might be able to shape the pulses in order to get a better result. Would differently formed clicks work better at different ranges or with different surfaces?

about two weeks ago
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Study Shows How Humans Can Echolocate

godel_56 Re:I do this with water temp. (136 comments)

I do something like this when I'm in the bathroom at work.

I can literally turn on a faucet here without touching the temperature of the water and the instant the water starts coming out warm I can hear the sound difference.

It's like the sound gets more "noisy" and less "linear" when it's hot water coming out. I can even tell as it's warming up since the pitch changes as well then holds steady at full-hot.

Anyone else do this? I'm starting to wonder if I'm alone here.

It's more likely a change in the physical dimensions of the pipe with temperature, rather than anything to do with the density of water. The pipe expands and its resonant frequency decreases.

about two weeks ago
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"Ambulance Drone" Prototype Unveiled In Holland

godel_56 Re:People are the problem (82 comments)

Here in the Netherlands the problem is not in getting an AED on the site, but to find someone who can apply it. There are many people trained in using AED's and we here in the Netherlands possibly have the highest density of AED's, and although there is an elobrate system to call trained people to a person with a cardiac arrest, the problem is still in getting enough volunteers to join in. It is no use to have an AED within 200 meters from every house, if you don't have people who can apply them. AED's are not difficult to use, but in a case of emergencie, you need someone who can keep his/her head calm and follow the instructions.

The defibrillators I've seen give audio instructions plus have clear illustrations of how to use them. Unless the bystanders are REALLY stupid, it shouldn't be a problem

about three weeks ago
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FTDI Reportedly Bricking Devices Using Competitors' Chips.

godel_56 Re:On the other hand... (700 comments)

Right, that makes all the difference, because this is perfectly reasonable:

>We've discovered some counterfeit parts in your car.
-Oh, really? Well, I'm going to drive over to the dealership take that up with them.
>We've already handled the problem. We crushed your car into a cube.
-Uhhh...
>You have 15 seconds to move your cube.

As I understand it they're not bricking the device, they're bricking the OS's ability to use the device. As a result the customer will take it back to the person who supplied it. They're the ones who will be up for the cost.

about 1 month ago
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VeraCrypt Is the New TrueCrypt -- and It's Better

godel_56 Meh (220 comments)

If he was going to change it why not go straight to scrypt, which is known to be resistant to GPU decryption?

about a month ago
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How 3D Printers Went Mainstream After Decades In Obscurity

godel_56 Re:Making stuff to make stuff (69 comments)

The solution to "can't manufacture stuff at home" is inventing cheaper manufacturing tools. I don't think we'll see replicators any time soon, but there's no reason why, for example, plumbers shouldn't be able to print plastic parts for dishwashers on-the-fly or in the shop rather than waiting for it to be delivered.

It will be better to order the part from a 3D copy shop which can afford better equipment and processes, and have sufficient volume to justify the expense.

about 2 months ago
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New MRI Studies Show SSRIs Bring Rapid Changes to Brain Function

godel_56 Prementrual Dysphoria (138 comments)

SSRIs are also the preferred treatment for PMDD and in small doses, about 5% of the usual dose for depression.

In this application it also works almost immediately, no waiting 6 weeks for something to happen. The original article I saw speculated that it affects the amount of GABA in the brain.

http://en.wikipedia.org/wiki/Premenstrual_dysphoria

about 2 months ago
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Ask Slashdot: What Old Technology Can't You Give Up?

godel_56 Re:Simple (635 comments)

. . . and my daily-use TV is a widescreen, high-definition tube . It works great! Cost me only $40! And at 126lb, no one is going to steal it. In fairness, it fits the built-in TV cabinet perfectly and at the time a similarly-sized LCD model was close to $600, so it made sense to go with the tube.

With the massive power savings you could get by replacing this old junker, you could pay for a new flat screen in a few years. However you'd have to make sure it had the inputs to talk to your old signal sources. I've seen some new TVs with HDMI inputs only.

about 3 months ago
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News Corp Australia Doesn't Want You To Look Closely At Their Financials

godel_56 Re:New for Nerds? (132 comments)

It's not nothing. It's a glimmer of hope for us here in Australia, that that piece of shit Murdoch could eventually lose his near monopoly in Australian newspapers - and, therefore, a significant part of his ability to manipulate the government. And not before time.

With our luck, he'd probably sell the papers to Gina Rinehart. :-(

about 3 months ago
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Fighting Invasive Fish With Forks and Knives

godel_56 Re:What kind of fish? (180 comments)

We have an overabundance of carp here. Normally eating carp seems to be an ethnic thing around here.Even then, only an older generation bothers with it. I would like the world to come and rid the Mid U.S. of carp, so I have included the only recipe I know for carp. 1 pressure cooker 1 5-lb. rock 1 carp Pressure cook the meat till it slips from the bone (about 2 hours) let cool, discard the fish and eat the rock.

I've never tried it, but I've heard they can be OK eating if prepared correctly. The recommendation I heard was to skin and fillet the fish, and age it in a freezer for some weeks. I think they used it in a stew after that.

about 3 months ago
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Experimental Drug Compound Found To Reverse Effects of Alzheimer's In Mice

godel_56 Vitamin D and Alzheimers (105 comments)

A recent study has found low vitamin D levels associated with Alzheimer's disease, as well as a bunch of other ailments. It seems like modest daily supplementation with vitamin D3 might be a good idea if Alzheimer's runs in your family.

https://www.yahoo.com/health/clear-link-found-between-vitamin-d-deficiency-and-94074543072.html

about 3 months ago
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Microsoft Tip Leads To Child Porn Arrest In Pennsylvania

godel_56 Re:Microsoft's child porn collection (353 comments)

In order to successfully perform these matches, Microsoft likely has one of the world's largest collection of child porn.

Actually, no.

They get a big list of file hashes from the National Center for Exploited Children or something, and it's implemented as part of the file scan. All that happens is they check file hashes and if it matches, then they do more in-depth analysis (is it an image file? etc).

Which begs the question on the general stupidity since hashes are so trivially easy to change and it's extremely easy to obfuscate (just zip it up with a password).

People are lazy. Even ones who really know that what they do isn't really appreciated by the general population and really ought to try to cover their tracks... and don't.

Nope, from the TFA they process the image to derive a signature which can survive things like resizing, changing resolution etc. It's not just a simple hash.

about 4 months ago
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The FBI Is Infecting Tor Users With Malware With Drive-By Downloads

godel_56 Re:Hide behind todays popular hate-topic... (182 comments)

...and that's how and WHY they get away with this. This is against any human rights, but shout "won't anyone PLEASE think of the Children", and these agencies can get away with murder.

So that said, to any whistleblower out there who doesn't have the tech savvy that we have, I'd offer a little bit of advice, read it - and don't forget it, you might just be next if you do:

1) Download Tails. Install it preferably on a CD.
2) Remove your hard disk connection (removing the power is enough) when you intend to boot from Tails.
3) Shut down your WiFi. And only use WIRED connections.
4) Boot tails, and when you start Iceweasel - make sure to turn NoScript ON for ALL sites. It's not on by default, when the SHIELD shows...it's on!

Stuff deleted

If you really need to be anonymous, use a computer that you bought for cash, that is ONLY used for communicating over Tor with Tails, preferably using somebody else's Wi-Fi. Even if the Feds do manage to plant a beacon on this computer, it will only show up when you are communicating anonymously. Your secure computer should be air gapped from your main work/internet computer.

about 4 months ago
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Mass. Supreme Court Says Defendant Can Be Compelled To Decrypt Data

godel_56 Re:I lost the password (560 comments)

I lost the password in a hard drive crash.

Apparently he admitted to the cops that he could decrypt the drive, but wouldn't. Which once again goes to show that when you are arrested by the cops SHUT THE HELL UP, or use TrueCrypt in "plausible deniability" mode (yes, I'm aware of TrueCrypt's current situation).

The fact that the defendant is a lawyer makes his admissions even more stupid.

about 5 months ago
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Mass. Supreme Court Says Defendant Can Be Compelled To Decrypt Data

godel_56 Re:I lost the password (560 comments)

It amazes me that you subscribe to the idea that a local desktop hard drive crash wiped out all email for a high-ranking IRS official... and that the IRS is essentially shrugging at any notion of ineptitude. Clearly you know fuck all about tech.

I thought so too, but when you read the Ars Technica article on what a clusterfuck the IRS IT system is, It becomes a little more believable.

about 5 months ago
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FAA Bans Delivering Packages With Drones

godel_56 Rural Applications (199 comments)

While drone delivery is a stupid idea for the city and suburbs, I think it has some real possibilities for rural areas.

Being able to fly long distances over largely unpopulated regions, line of site and not affected by road conditions and with no on-board pilot/driver, seems potentially efficient.

Of course these are also the areas with toothless yokels with shotguns, so that may pose some problems.

about 5 months ago
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Computing a Cure For HIV

godel_56 Re:Bitcoin mining? (89 comments)

Imagen if all that computer power was put to use such as finding the cure of HIV.... We would be done by lunch time.

If anyone wants to contribute to computer research on HIV with their own systems then there is a World Community Grid project called Fight Aids At home (FAAH) that uses your computer's spare cycles to work on AIDS research, using the BOINC platform.

There are versions for Windows, Apple, Linux, and Android software.

about 5 months ago
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It's Not a Car, It's a Self-Balancing Electric Motorcycle (Video)

godel_56 Turns? (218 comments)

I haven't looked at the Slashdot video, but on YouTube there's no sign of it turning corners. What effect will the gyros have on that?

about 5 months ago
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Century-Old Drug Reverses Signs of Autism In Mice

godel_56 Re:Can a company patent it? (207 comments)

Gaining a drug's approval by the Food and Drug Administration in the US — and similar government agencies in other countries — is a very expensive process. The expense is normally offset for by the patent(s) granted to the pharmaceutical company, that developed the drug, which make it an exclusive maker/seller of the medicine for decades.

However, if the drug is long-known — and only needs an approval for new application — who will undertake to pay for the approval, if there is no way to patent it and the approval will allow all drug-makers (both domestic and foreign) to put their own versions on the market?

Or, the parents can just take their kids to Mexico for a week.

about 5 months ago
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Firefox 30 Available, Firebug 2.0 Released

godel_56 Re:Pale Moon (270 comments)

http://www.palemoon.org/ Switched from Firefox to Pale Moon because of Version 29 and haven't looked back. It is excellent.

Me too, and I gave the author a small donation. I doubt they're getting bulk money from Google as FF is.

about 5 months ago

Submissions

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WI-fi phones make local network using VoIP

godel_56 godel_56 writes  |  more than 4 years ago

godel_56 (1287256) writes "Australian researchers have developed software that allows WiFi capable mobile phones to communicate with each other where there is no mobile reception, using mesh networking and VoIP. Researchers envisage it being used to provide emergency communications in cases where the central phone towers are out of action, such as in the recent Haiti disaster."
Link to Original Source

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