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Comment: Re:Here's an idea (Score 1) 126

by AJWM (#43954665) Attached to: Supermarkets: High-Tech Hotbeds

When we will be able to glean useful information from the epigenetic portion of DNA, then we will be able to deal with identical twins.

Um, no.

Forensic DNA analysis already uses the epigenetic portion of DNA, since the useful stuff is far more likely to be identical between individuals. But the epigenetic stuff is still inherited (although somewhat less reliably) from parents, and is the same between identical twins. Said twins are, after all, clones.

And anyone whose had a transplant (especially a bone marrow transplant) or a recent transfusion or is one of the not-all-that-rare instances of a person who merged with a potential fraternal twin while still in utero will have cells with different DNA.

There are ways of creating totally unique identification markers.

But it's very, very difficult to keep them unique if somebody has an interest in copying them.

Android

UDOO Looks To Combine Best of Raspberry Pi, Arduino 59

Posted by timothy
from the now-they're-just-negotiating-a-price dept.
An anonymous reader writes "The Kickstarter campaign for the UDOO board is 7 days out from closing and they currently sit just under $4,000 short of their stretch goal of $500,000. The UDOO is an attempt to produce a single board which would combine the best parts of both Raspberry Pi and Arduino. UDOO will have a 1GHz ARM i.MX6 CPU in either a Dual Core or Quad Core flavor, 1 GB DDR3 RAM, HDMI and LVDS + Touch, and both an RJ45 port and an on board Wifi Module. Along with those specs, it will be compatible with Arduino DUE R3. The UDOO will utilize Micro SD as a boot device and run both Linux and Android. Currently on Kickstarter, the Dual Core starts at a pledge of $109."

Comment: No suprise there. (Score 2) 325

by AJWM (#43820221) Attached to: Predicting IQ With a Simple Visual Test

Most questions on a "classic intelligence test" (Stanford-Binet, Wechsler, etc) are ultimately pattern-recognition tests, albeit some classes of question (eg the verbal ones) require prior knowledge too. E.g., in the Wechsler tests, the "Perceptual Reasoning", "Working Memory" and "Processing Speed" subtests all include (or benefit from) some pattern extraction/recognition skill, only the "Verbal Comprehension" does not. Whether those tests actually measure those things, let alone "intelligence", is another question entirely. But if there's something in the brain's hardware or firmware that assists that visual processing, chances are it assists in the above tests too. (And yes, I recognize that with visual processing there's also a bunch that gets done in the hardware before the information ever gets to the higher levels.)

Although as the saying goes, IQ is that thing which is measured by IQ tests, and may or may not have any bearing on intelligence. From personal observation, it certainly has no correlation with common sense.

Comment: Re:E=mc^2 (Score 1) 255

by AJWM (#43597703) Attached to: Does Antimatter Fall Up?

Right, we know it has positive inertial mass. We haven't yet properly observed their gravitational mass. We assume the two are equivalent; they may not be.

Actually, physicists have antimatter all wrong. A positron actually does have a negative charge but also has negative inertial mass, so it will react to an electromagnetic field the opposite way an electron does. We just observe that as reversed charge.

(Yes, I did just make that up, tongue firmly in cheek.)

Comment: Re:Most important question... (Score 1) 255

by AJWM (#43597681) Attached to: Does Antimatter Fall Up?

Much (most?) of the energy from an ordinary nuclear bomb comes off as gamma rays. Because the atmosphere happens to be relatively opaque to gamma, it absorbs them and superheats. That's what generates the fireball.

So, expect the same thing to happen with antimatter.

And actually pure gamma emission is what happens when electrons and positrons collide. Proton-antiproton collisions tend to produce gamma plus some secondary particles (pions (pi-mesons), if I remember right, but I may not).

Graphics

High End Graphics Cards Tested At 4K Resolutions 201

Posted by Soulskill
from the scale-it-until-they-catch-fire dept.
Vigile writes "One of the drawbacks to high end graphics has been the lack of low cost and massively-available displays with a resolution higher than 1920x1080. Yes, 25x16/25x14 panels are coming down in price, but it might be the influx of 4K monitors that makes a splash. PC Perspective purchased a 4K TV for under $1500 recently and set to benchmarking high end graphics cards from AMD and NVIDIA at 3840x2160. For under $500, the Radeon HD 7970 provided the best experience, though the GTX Titan was the most powerful single GPU option. At the $1000 price point the GeForce GTX 690 appears to be the card to beat with AMD's continuing problems on CrossFire scaling. PC Perspective has also included YouTube and downloadable 4K video files (~100 mbps) as well as screenshots, in addition to a full suite of benchmarks."

Comment: Re:Huh? (Score 1) 272

by AJWM (#43585993) Attached to: Stolen Laptop Owner Outwits Mugger, Police, and the Media

From Wikipedia: "The Internet protocol suite resulted from research and development conducted by the Defense Advanced Research Projects Agency (DARPA) in the early 1970s. After initiating the pioneering ARPANET in 1969, DARPA started work on a number of other data transmission technologies. [...] From 1973 to 1974, Cerf's networking research group at Stanford worked out details of the idea, resulting in the first TCP specification."

And then it took about 8 years to be blessed as a standard, which is about average.

I laugh, ha!, at your check mate.

The brain is a wonderful organ; it starts working the moment you get up in the morning, and does not stop until you get to work.

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