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Comment: Probably not (Score 1) 40

GPUs have small memory footprints. SKA will be processing HUGE images and data sets. And the image creation cannot be broken up into discrete independent chunks. So the I/O between GPUs is a real problem. Obviously CPUs have the same problem as the on chip memory is (relatively) tiny, but they are designed to pull on the much larger system memory which should be adequate.

Image analysis may well be a different kettle of fish.

+ - Dual site agreed for Square Kilometre Array telescope->

Submitted by Xhris
Xhris (97992) writes "The SKA board has just announce it has decided to "split" the telescope between Australia/New Zealand and South Africa. The lower frequencies will be located in Australia and higher frequencies in South Africa. The skatelecope webserver seems to have crashed, but this is covered on other news sites such as http://www.abc.net.au/news/2012-05-25/australia-sa-to-share-super-telescope/4034524"
Link to Original Source
Australia

+ - Australia and South Africa to share the SKA->

Submitted by ananyo
ananyo (2519492) writes "The battle for the world's largest radio telescope has ended in a draw. As an earlier slashdot story suggested, South Africa and Australia are to split the Square Kilometre Array, a €1.5 billion (US$1.9 billion) project made up of 3,000 15-meter-wide dishes and an even larger number of simple antennas. The decision was announced at a meeting outside of Amsterdam in the Netherlands, following a vote by SKA's international board."
Link to Original Source

Comment: Re:Well then are better then text book in some way (Score 3, Insightful) 223

by Xhris (#39566835) Attached to: Do Tablets Help Children Learn?

Too much television will "rot" your brain - there is no question about this. Studies have clearly show that, for example, children under 2 there is a steep correlation between hours of tv watched per week and vocabulary (tv watching decreases your small kids vocabulary).

My 7yo daughter is reading years ahead of her age - I'm sure this is down to a very small amount of television watching - and she does not miss tv at all. She would much rather play with her sister or read a book.

Comment: Re:Not the largest (Score 2) 74

by Xhris (#39459943) Attached to: Massive Construction Effort Begins For World's Largest Telescope

Obviously you have never done basic mathematics.... 8.5 x sqrt(7) is 22 (close enough). Why sqrt? because a telescope is (essentially) 2 dimensional - we care about the collecting area not the diameter (directly). A 20m telescope has 4 times the collecting area of a 10m telescope. This is really, really simple stuff.

So who is the idiot?

Comment: Not the largest (Score 1) 74

by Xhris (#39459879) Attached to: Massive Construction Effort Begins For World's Largest Telescope

This is hardly the largest telescope being built. At seven 8.5m mirrors, it is equivalent of a 22m telescope. Just last week I was using the Parkes 64m telescope which was build 50 years ago (and it is hardly the biggest telescope in the world).

Oh did they mean largest optical telescope....

Comment: Re:Another viewpoint on calculators and exams... (Score 1) 636

by Xhris (#35787724) Attached to: Are Graphical Calculators Pointless?

Hell, why do we even allow calculators to be used in ANY exam? What's the point in "teaching" math if you let the calculator do 90% of the work? .

You obviously have never done any sort of serious math, or are still in high school. Math is not about adding up numbers - thats just some of the raw ingredients needed at the start.

NB: In Australia only very basic casio style scientific calculators ($20 jobs) are allowed in exams. There is a list and your calculator must be on the list.

Comment: Not my experience (Score 1) 242

by Xhris (#32996650) Attached to: Google's Free Satnav Outperforms TomTom

I find this hard to believe. In Sydney (Australia) the Google stuff gets if wrong ALL the time. U-turns on major highways, not knowing about no left or no right turns and missing some connecting roads. So far (knock on wood), my TomTom has NEVER instructed me to do something impossible. Now comparing which gives the best route is almost impossible in Sydney. The traffic is so unpredictable the only sure way to device which was the best route would be to send out two cars simultaneously, with drivers of similar "style".

Science

The Proton Just Got Smaller 289

Posted by samzenpus
from the size-does-matter dept.
inflame writes "A new paper published in Nature has said that the proton may be smaller than we previously thought. The article states 'The difference is so infinitesimal that it might defy belief that anyone, even physicists, would care. But the new measurements could mean that there is a gap in existing theories of quantum mechanics. "It's a very serious discrepancy," says Ingo Sick, a physicist at the University of Basel in Switzerland, who has tried to reconcile the finding with four decades of previous measurements. "There is really something seriously wrong someplace."' Would this indicate new physics if proven?"
Image

NHS Should Stop Funding Homeopathy, Says Parliamentary Committee 507

Posted by samzenpus
from the how-am-I-going-to-align-my-chakras-now dept.
An anonymous reader writes "Homeopathic remedies work no better than placebos, and so should no longer be paid for by the UK National Health Service, a committee of British members of parliament has concluded. In preparing its report, the committee, which scrutinizes the evidence behind government policies, took evidence from scientists and homeopaths, and reviewed numerous reports and scientific investigations into homeopathy. It found no evidence that such treatments work beyond providing a placebo effect." Updated 201025 19:40 GMT by timothy: This recommendation has some people up in arms.

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