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Submission + - The most energetic particles in the Universe dwarf the LHC

StartsWithABang writes: When it comes to the Universe, you might think that energy really is only limited by rarity: get enough particles accelerated by enough supermassive, super-energetic sources, and it’s only a matter of time (and flux) before you get one that reaches any arbitrary energy threshold. After all, we’ve got no shortage of, say, supermassive black holes at the hearts of active galaxies. And yes, we do find cosmic rays hundreds, thousands or even millions of times the energy that the LHC can achieve. But when we think about the Universe in detail, these cosmic rays aren’t unlimited in their energy, but are rather stopped in their tracks by the most unlikely of sources: the ultra-low-energy cosmic microwave background, left over some 13.8 billion years after the Big Bang.

Submission + - Alternatives to Slashdot post beta? 8

An anonymous reader writes: Like many Slashdotters, I intend to stop visiting Slashdot after the beta changeover. After years of steady decline in the quality of discussions here, the beta will be the last straw. What sites alternative to Slashdot have others found? The best I have found has been, but it has been a while since I've looked for tech discussion sites.

Submission + - Slashdot forces a beta site by default

kelk1 writes: As a poor submitter found out (, Slashdot ( suddenly forced a preview of its beta site without any warning on all its viewers.

Judging by the comments, the feedback was immediate and clearly negative.

I cannot speak for the forum moderation side, but my reaction to the front page was an knee jerk: "Oh no!, not another portal full of noise I cannot speed-read through." Text and hyperlinks are what we need, please, and as little graphics as possible. Think lynx, thank you.

Submission + - CERN antimatter experiment produces first beam of antihydrogen (

An anonymous reader writes: "Matter and antimatter annihilate immediately when they meet, so aside from creating antihydrogen, one of the key challenges for physicists is to keep antiatoms away from ordinary matter. To do so, experiments take advantage of antihydrogen’s magnetic properties (which are similar to hydrogen’s) and use very strong non-uniform magnetic fields to trap antiatoms long enough to study them. However, the strong magnetic field gradients degrade the spectroscopic properties of the (anti)atoms. To allow for clean high-resolution spectroscopy, the ASACUSA collaboration developed an innovative set-up to transfer antihydrogen atoms to a region where they can be studied in flight, far from the strong magnetic field."

Submission + - Physicists explain 'gravity-defying' chain trick (

ananyo writes: Leaping up out of a jar in an arc before falling to the floor, the fountain-like motion of a chain of beads has puzzled millions around the world with its apparently gravity-defying behaviour. Now physicists think they have an explanation.
British science presenter Steve Mould, who made the experiment famous, explained the phenomenon as simply one of inertia: the falling chain has downward momentum, causing an upward momentum in beads leaving the pot. This, in turn, makes them leap before gravity can slowly reverse their momentum.
Mould’s explanation was clever, but wrong, says physicist John Biggins of the University of Cambridge, UK. The only way to account for the rise is for the chain to receive a 'kick' from the pot from which it is being pulled. This challenges not only the explanation given by Mould, but the conventional mathematics of chains, Biggins says.

Submission + - Sweden is closing many prisons due to lack of prisoners. (

rtoz writes: Sweden is taking steps to close many prisons due to lack of prisoners.

This year alone, four prisons and a detention center got closed in Sweden.

The percentage of the population in Sweden prison is significantly lower than in most other countries.

And,the Swedish prison system is not generally severe. For example, the top-of-the-line prison in Sollentuna, Sweden includes cells with comfortable mattresses and private bathrooms. After prisoners hit the weight room, they can cook up a meal in the state of the art kitchen before kicking back and watching TV on the couch. Sweden’s prison authorities are quick to point out that every square inch of the prison can be seen on a security camera.

Though the Sweden Government is taking steps to close the prisons, crime rate in sweden is not reduced. Actually Crime rate it getting increased in Sweden. It seems they are planning to take steps for preventing the crimes than focusing on sentencing the people involve in criminal activities.

Submission + - Artificial energy storage island in the North-Sea (

bmcage writes: Belgium wants to build within 5 years an artificial [dutch] energy storage island ([Google Translate]). The island will store excess energy produced at night from the offshore wind farms already present in the North-Sea.

As a small country with no hydropower possibilities, moving from nuclear to offshore wind farms, this is an innovative way to store the excess production. Is it really feasible however? Silting could be a problem.


Submission + - Australian scientists discover potential aids cure writes: Several sites report that Australian researcher David Harrich and his team have potentially discovered a way to stop HIV becoming AIDS and ultimately cure the disease. From the article: "What we've actually done is taken a normal virus protein that the virus needs to grow, and we've changed this protein, so that instead of assisting the virus, it actually impedes virus replication and does it quite strongly." This could potentially hail one of modern medicine's greatest victories.

Submission + - "Superomniphobic" nanoscale coating repels almost any liquid ( 1

cylonlover writes: A team of engineering researchers at the University of Michigan has developed a nanoscale coating that causes almost all liquids to bounce off surfaces treated with it. Creating a surface structure that is least 95 percent air, the new "superomniphobic" coating is claimed to repel the broadest range of liquids of any material in its class, opening up the possibility of super stain-resistant clothing, drag-reducing waterproof paints for ship hulls, breathable garments that provide protection from harmful chemicals, and touchscreens resistant to fingerprint smudges.

Submission + - Higgs Boson Probabliy Found at CERN (

ACluk90 writes: Today experimental data from the Large Hadron Collider at CERN in Geneva, Switzerland has been presented. The data shows the existence of a new particle around 126 GeV — within in the range in which theorists suspect the mass of the Higgs Boson.

Submission + - Higgs 1

The Bad Astronomer writes: "Scientists at CERN announced today the discovery of a new fundamental subatomic particle that is almost certainly the Higgs boson — a particle that is crucial in giving other particles mass.

The new particle has a mass of about 125 — 126 GeV (roughly 125 times the mass of a proton) which is just what the Higgs mass is predicted to be by the Standard Model of particle physics. A signal was seen in preliminary results from 2011, but observations since then have raised the confidence level hugely: the strength of the signal indicates it is real to the 5 sigma level — that is, with 99.9999% confidence. In physics, that qualifies as a "discovery". This is a monumental step in particle physics, and toward our understanding of one of the most fundamental and mysterious properties of matter in the Universe: mass."

Submission + - Have TV Manufacturers Given Up on 3D? (

ElectronicHouseGrant writes: "At the 2011 CES, you couldn’t take a step without tripping over a 3D display. Sure there were competing glasses technologies, the prospect of glasses-free and the decaying economy, but no one really expected the public to treat 3D as if it had a bad case of halitosis. Yet here we are, in the middle of the 2012 new TV shipping season and every manufacturer I meet with only wants to talk to me about streaming services, apps or some wacky new control features (for the record, I like streaming services, apps and wacky control features)."

"You need tender loving care once a week - so that I can slap you into shape." - Ellyn Mustard