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Protons Collide At 13 TeV For the First Time At the LHC 52

An anonymous reader writes to let everyone know the LHC has now smashed protons together at 13 TeV, the highest energy level yet achieved. They've posted the first images captured from the collisions, and explained the testing process as well. Jorg Wenninger of the LHC Operations team says, "When we start to bring the beams into collision at a new energy, they often miss each other. The beams are tiny – only about 20 microns in diameter at 6.5 TeV; more than 10 times smaller than at 450 GeV. So we have to scan around – adjusting the orbit of each beam until collision rates provided by the experiments tell us that they are colliding properly." Spokesperson Tiziano Camporesi adds, "The collisions at 13 TeV will allow us to further test all improvements that have been made to the trigger and reconstruction systems, and check the synchronisation of all the components of our detector."

Comment Re:Do people really take this risk seriously? (Score 5, Insightful) 236

The article is also based on some terrible reasoning, like:

That means there will be no asteroids left in the Solar System, because they all will have struck Earth, in another few hundred million years. Think someone’s overestimated something there? Yeah, me too. Let’s take a look with the flaws in our fear-based reasoning.

Yeah, in a universe where our solar system is some sort of perfect steady state. Which, of course, it is not. Asteroids collide or - more commonly, come close to other bodies and gravitationally interact - and throw each other into different orbits. When that happens, non-Earth-crossing asteroids can become Earth-crossing ones. For example, one of the candidates for the K-Pg extinction event is a Batisma-family asteroid. This family came from an asteroid breakup 80 million years ago.

A person well versed in the field would be aware of the fact that asteroids are not in some sort of unchanging steady state. Which is why they're the ones paid to do the research on the subject.

And more to the point, we really don't have a good handle on what's out there. We have trouble making out dwarf planets in the outer solar system. We really have no bloody clue what could be on its way into the inner solar system, apart from studying how often major events happen.

And on that note, another flaw in his logic, given that until recently, the vast majority of Tunguska-style events would never even have been detected, having occurred over the oceans, remote deserts, the poles, etc. So by all means it's perfectly fair to say that the fact that an asteroid hitting earth is more likely to hit a remote uninhabited area is perfectly fair. But saying that while mentioning the rarity of inhabited areas having been hit in the past is double-counting. The historical record is evidence of how often they hit populated areas, not how often they hit Earth.

Lastly, his claim that only one person has ever been "hit by an asteroid" is ridiculous. 1500 people were injured by the Chelyabinsk one in 2013 badly enough to seek medical attention. Yes, they weren't "hit by rocks", but that's not what large asteroid impacts do; they mostly or completely vaporize by exploding in the atmosphere and/or on impact. And there's lots of reports throughout history of people getting struck by asteroids; just because they weren't documented by modern medical science doesn't mean it never happened. Seriously, what's the bloody odds that the only person to ever in historical times be hit by an asteroid would be in the 1950s in the middle of a first-world nation? Now what's the odds that someone being hit in the 1950s in the middle of a first-world nation would be well documented, publicized, and believed?

Just a lot of really bad arguments.

Comment Re:Seems obvious now (Score 4, Interesting) 214

Can you imagine the dystopian dictatorship where trekkies come to power? All of the halls of power full of people walking around in spandex and fake ears and brow ridges, the fed directed to work toward the absolution of currency, the military directed to accelerate development of phasers and for all recruits to undergo "Kobayashi Maru" training.... NASA would finally get their proposed $18,5 billion dollar annual budget passed - except that the bill would have the word "annual" crossed out and the word "monthly" written in its place. National anti-bullying legislation would be passed, probably with a name like Spock's Law. And of course they'd insist on referring to the UN as the United Federation of Planets.

Comment Re:MIssing Option ? (Score 1) 164

Celebrating the person who brought you into the world,

Some of us are lucky enough to have parents who made a conscious decision to have children, worked out what it would cost them, understood that it was a responsibility and a commitment, and decided that the costs were worth it. Some people have parents who fucked and forgot the pill (or whatever) and decided that keeping the child was the path of least resistance. For those of us in the first category, one day a year per parent is nowhere near enough - we owe our parents a lot for the advantages that we had early on that let us succeed later in life. For people at the opposite extreme, even one day can seem like an insult.

wiped your ass for you and taught you right from wrong, for one day per year,

You don't need to do any of that to qualify as a mother, you just need to make it to childbirth. If you're in the first category that I described, then please do remember to appreciate your parents, but please also remember that those advantages that you're thanking your parents for giving you (teaching you right from wrong, as you say, and hopefully teaching you to value education and how to be happy) are not universal.

Remember, occasionally, just how lucky you are. If you're born in an industrialised society, in a stable family, with supportive parents, then that gives you a huge advantage in life.

Comment Re:Couldn't care less. (Score 1) 241

Tried that but wasn't able to get something useful from "cat /proc/cpuinfo".

I had exactly that experience! Though mine was on Linux and was one of the things that pushed me to *BSD. An unstable text-based format that varies between architectures and between kernel versions turns out to be a piss-poor way of getting information from the kernel.

Comment Re:Affirmative Action (Score 2) 529

I can't speak for other universities, but we (Cambridge) publish undergraduate admissions statistics (though the 2013 figures are the latest published so far, I think 2014 is out soon). If you look on pages 13 and 14, you'll see the gender ratios for applications and acceptances. 8 subjects have more female applicants than male, 7 have more women accepted than men. 18 have more men apply than women, 19 accept more men than women. In total, 54.4% of the applicants and 53.1% of acceptances are men. I'd hardly call that underrepresentation. You are right that the figures look slightly different if you exclude STEM. For Arts, Humanities and Social Sciences, 43.8% of applicants and 42.6% of acceptances are men. White men and women make up 74.7% of our applicants and 75.6% of our intake. It's pretty hard to argue that white people are under-represented here.

If you look at other top-10 universities in the world, you will see a fairly similar picture. A big part of our admission training is getting interviewers to understand their subconscious biases (usually this means 'people like me', although the aspects of 'like me' that they think are important are quite varied). There's no affirmative action or direct equivalent (the closest thing is a set of targets for state school applicants, which we usually meet).

Comment Re:Affirmative Action (Score 1) 529

Though I agree with the spirit of what you are saying, the term "reverse discrimination" is a misnomer at best and discriminatory at worst — because it implies, that discriminations are or can be different

The idea of reverse discrimination is to correct for unconscious biases. The end result is intended to be the result that you'd get if you had a really unbiased person making the judgement (which doesn't exist in the real world).

Comment Re:Common sense prevails! (Only Partially!) (Score 1) 545

I'm also fairly certain the overall research/trial time for military vaccines is shorter than civilian ones

I wonder how improvements in logistics and remotely operated weapons systems change the need for this. The danger of having everyone on a base be incapacitated by illness while surrounded by a hostile enemy was huge 50 years ago and would easily outweigh possible dangers from side effects of a less-tested vaccine. Now, it's far easier to have drone patrols protecting a quarantined base and deliver men and equipment from reserves far away to fill the gaps in an overall strategy.

Comment Re:wtf (Score 1) 54

It's hard to translate miles into actual value. 30K United miles + fees buys you a transatlantic flight. When I was looking a couple of weeks ago, it was the same going from LHR to EWR or SFO, with $188 for the UK leg and about $6 in the other direction (UK airport taxes are pretty huge). The round trip to SFO is about $1200 without the miles, so 60K miles works out to about $1K on that. That makes the value of 250K miles about $4000. This is a pretty low bug bounty.

On the other hand, the value depends a lot on whether they count as premiere qualifying miles and flight miles or not. If they count as PQM then the 250K is enough to give you the highest level of premiere status, which means you're at the head of the queue for upgrades and get a number of other benefits. If they count as flight miles (exceedingly unlikely!) then it's a quarter of the way to the million mile thing, which gives you star alliance gold for life (and, having flown far too much recently, I can attest to the fact that gold status makes it far less annoying. Apparently it actually become enjoyable at higher levels, but I'm hoping not to fly enough to find out).

Comment Re:You cannot know *WHO* is voting (Score 2) 258

I'm not sure about the 'Left', but the Democratic party in the USA tends to have more support among people with the technical ability to rig elections if they were held online. The Republican party tends to have the support of the people who own the companies that can rig them if they're not. With this in mind, it doesn't seem surprising that neither party is in favour of paper ballots.

Comment Re:I do have email bias (Score 1) 461

Because one of the strengths of email is that it is a decentralised, multi-vendor platform. The fact that you use gmail doesn't prevent me from using hotmail, yahoo, or whatever, or rolling my own. And that works fine, until one or two players has a dominant position. See what Google has done with their XMPP support, for example. When they were the underdog, they were happy to federate with everyone in a vendor-neutral network. Now they're increasingly trying to lock users into using their network (I think federating is up at the moment, but you can't add new contacts on non-Google-hosted domains).

The other aspect is privacy. If a certain percentage of my social graph uses gmail, then it doesn't matter that I don't - Google can still get a fairly accurate view of the shape of that graph, which is valuable to them. The other poster claimed that it's a reaction to whatever is popular, and he's right in a sense: email is a more robust network when there are no particularly popular providers and when people are fairly evenly spread between a smaller number.

Comment Re:So? (Score 1) 461

Most of the time, if someone is using a free webmail email address for business, I'd consider it a warning sign, with AOL not seeming particularly worse than Hotmail or GMail. Builders are probably my main exception to this, because they're one of the few contracting jobs where technological competence is not essential. That said, the last two builders I hired were through a web site that allows you to post jobs, have tradesmen bid for them, and hire them online, so a baseline knowledge is increasingly required for getting work.

Comment Re:What does it say about you? (Score 1) 461

They need to contain valid WHOIS information, but there's no requirement that every email address on a domain be owned by one person. More importantly, even if they're not anonymous, you can easily create a single email address for each company that you do business with and delete it afterwards (or, better, redirect it to the spam honeypot address on your mail server).

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