The Skeptical Teacher

Musings of a science teacher & skeptic in an age of woo.

Posts Tagged ‘LHC’

Large Hadron Collider Reaches 7.0 TeV Collisions

Posted by mattusmaximus on March 30, 2010

As a quick follow up to my recent post about the Large Hadron Collider, there is a new development: the LHC has now actually collided counter-rotating proton beams in collisions reaching the 7.0 TeV energy level (3.5 TeV per beam).  As the story below points out, this is the highest level ever recorded for such collisions, and – as you know upon waking up this morning – the planet has survived and no Earth devouring black holes were created in the process.  Of course, if you knew anything about the physics involved, you know that such doomsday scenarios are the purest lunacy (here’s 3 reasons why the LHC cannot destroy the planet)…

Geneva atom smasher sets collision record

The world’s largest atom smasher conducted its first experiments at conditions nearing those after the Big Bang, breaking its own record for high-energy collisions with proton beams crashing into each other Tuesday at three times more force than ever before.

I wonder how the conspiracy mongering doomsayers will react to this news?  I’ll be on pins and needles 🙂

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Large Hadron Collider Breaks High-Energy Physics Record… Earth Survives

Posted by mattusmaximus on March 20, 2010

**Addendum (3/22/2010): Shortly after I wrote the post below, it came to my attention that the proton-proton beams in the LHC haven’t yet actually collided at the 3.5 TeV level yet, but I think that point is moot. It’s also true that the LHC has already conducted proton-proton collisions at greater than TeV levels (up to about 2.36 TeV, it seems)…

http://en.wikipedia.org/wiki/Large_Hadron_Collider#Current_results

And despite this fact, we’re all still here. Of course, I expect the scare mongers to come back with something like “But we don’t know that the planet won’t be destroyed at the next energy level!” By that same token, we don’t know that the Earth won’t be destroyed if we don’t turn the damn thing on, right?

Arguments from ignorance can be used in such silly ways. ‘Nuff said.

—————————————————————————————

The Large Hadron Collider (LHC) is the largest, most complicated piece of machinery ever created by humanity.  This humongous particle accelerator also just recently broke, once again, the world record for achieving the highest-energy artificial particle collisions ever in history.  Of course, there are some conspiracy-minded scare mongers out there who maintain that the LHC is going to somehow destroy the Earth, presumably because – despite multiple reasons to the contrary – there will be some unknown, magical mechanism by which these artificially-achieved energy levels will kill us all.  In short, with no evidence or coherent theory of physics behind their claims, they’re making an argument from ignorance & saying this…

I think not – it didn’t happen in May 2008, and it won’t happen now.  As I said, the LHC recently broke that supposedly world-ending energy barrier once again, and we’re all still here.  The news is outlined in this Yahoo News story…

Operators of the world’s largest atom smasher on Friday ramped up their massive machine to three times the energy ever previously achieved, in the run-up to experiments probing the secrets of the universe.

The European Organization for Nuclear Research, or CERN, said beams of protons circulated at 3.5 trillion electron volts in both directions around the 27-kilometer (17-mile) tunnel housing the Large Hadron Collider under the Swiss-French border at Geneva.

The next major development is expected in a few days when CERN starts colliding the beams in a new round of research to examine the tiniest particles and forces within the atom in hopes of finding out more about how matter is made up.

The collider in December had already eclipsed the record of the next most powerful machine, the Tevatron at Fermilab outside Chicago, which has been running just shy of a trillion electron volts, or TeV.

The extra energy in Geneva is expected to reveal even more about the unanswered questions of particle physics , such as the existence of dark energy and matter. Scientists hope also to approach on a tiny scale what happened in the first split seconds after the Big Bang, which they theorize was the creation of the universe some 14 billion years ago.

CERN has reported a series of successes since the collider was restarted last year after 14 months of repairs and improvements following a spectacular failure when scientists initially tried to get the machine going.

CERN improved the machine during a 2 1/2-month winter shutdown to be able to operate at the higher energy .

“Getting the beams to 3.5 TeV is testimony to the soundness of the LHC’s overall design, and the improvements we’ve made since the breakdown in September 2008,” said Steve Myers, CERN’s director for accelerators and technology.

It’ll be interesting to see how the scare mongering pseudoscientists rationalize away this one, but I’m sure they’ll find some way to do it.

Posted in doomsday, physics denial/woo | Tagged: , , , , , , , , , , , , , , , , , , , , , , , , | 10 Comments »

Large Hadron Collider Switches Back On – Earth Survives!

Posted by mattusmaximus on November 21, 2009

Hooray! 😀  The Large Hadron Collider (LHC) in Europe has switched back on after being offline for a year…

Europe: Proton beams circulate in Big Bang machine

GENEVA – Scientists switched on the world’s largest atom smasher Friday night for the first time since the $10 billion machine suffered a spectacular failure more than a year ago.

It took a year of repairs before beams of protons circulated late Friday in the Large Hadron Collider for the first time since it was heavily damaged by a simple electrical fault.

Circulation of the beams was a significant leap forward. The European Organization for Nuclear Research has taken the restart of the collider step by step to avoid further setbacks as it moves toward new scientific experiments — probably starting in January — regarding the makeup of matter and the universe.

And, as I’ve blogged about before, where there is science being done by physicists via particle accelerators like the LHC, there are also pseudoscientific nuts who maintain that it’s going to destroy the Earth. Balderdash! Here are 3 good reasons why the LHC experiments are no danger to our planet.

I should also point out one more piece of good news regarding the re-starting of the LHC: despite all of the doomsday scenarios by the conspiracy-mongering pseudoscientists – the Earth survived 😉

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The Large Hadron Collider – Where Does Science End & Pseudoscience Begin?

Posted by mattusmaximus on October 20, 2009

Where does legitimate science end and questionable pseudoscience begin?  It’s a good question, and one brought up in my mind due to a story about the theory behind the Large Hadron Collider (LHC) which has gotten a lot of attention in recent days.  Two theoretical physicists have come up with a theory by which they propose to explain why the LHC might never detect particles like the Higgs Boson… sabotage from the future.

Yes, you read that right – sabotage from the future. I’ll let the article explain it a bit more…

The Collider, the Particle and a Theory About Fate

Then it will be time to test one of the most bizarre and revolutionary theories in science. I’m not talking about extra dimensions of space-time, dark matter or even black holes that eat the Earth. No, I’m talking about the notion that the troubled collider is being sabotaged by its own future. A pair of otherwise distinguished physicists have suggested that the hypothesized Higgs boson, which physicists hope to produce with the collider, might be so abhorrent to nature that its creation would ripple backward through time and stop the collider before it could make one, like a time traveler who goes back in time to kill his grandfather.

Holger Bech Nielsen, of the Niels Bohr Institute in Copenhagen, and Masao Ninomiya of the Yukawa Institute for Theoretical Physics in Kyoto, Japan, put this idea forward in a series of papers with titles like “Test of Effect From Future in Large Hadron Collider: a Proposal” and “Search for Future Influence From LHC,” posted on the physics Web site arXiv.org in the last year and a half.

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The Skeptical Teacher on Warning Radio with Brian & Baxter

Posted by mattusmaximus on October 8, 2009

On the evening of Monday, Sept. 28th I was interviewed by Brian, Baxter, and the lovely Nitor on Warning Radio. During the interview we discussed a variety of topics, including ghost-hunting woo, doomsday scenarios involving the Large Hadron Collider, and even a clandestine reference to me as the “naked gladiator” by Nitor 😉

In any case, it was a real blast and I eagerly look forward to a return visit to the show.  And, since I am a shameless self-promoter, here is a link to the audio of the interview…

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Three Reasons Why the Large Hadron Collider Will NOT Destroy the Earth

Posted by mattusmaximus on September 16, 2009

One of the things I did at Dragon*Con a couple of weeks ago was to give a talk on the physics of the Large Hadron Collider.  The last part of the talk dealt specifically with the claims that the LHC will destroy the Earth.  My response to this nonsense claim:

dont panic

No, really, don’t panic… the Large Hadron Collider is NOT going to destroy the Earth. Yes, I know what the cranks have said, and I know that words such as “black hole“, “strangelet” and “exotic matter” get thrown around to make them sound like they know physics from their buttholes… but really, it’s going to be fine.  Here’s why:

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Skepticism & Science at Dragon*Con 2009

Posted by mattusmaximus on September 7, 2009

Well, I’m starting to wind down here at Dragon*Con in Atlanta, which I have basically concluded is Mardi Gras for geeks – a lot of people dress up & party, and I was no exception.  Below was my small contribution to the party atmosphere 🙂

pirate-matt

On a serious note, while Dragon*Con is essentially a big science-fiction convention & general geek-fest, there is a very serious science & skeptical presence here.  The Skeptics track is now in its second year, and it seems as if it grew out of a desire to counter or provide a rebuttal to some of the more woo-ish paranormal nonsense that you see here.  For instance, there is a track which seems quite heavy on the paranormal woo called the X-track where all manner of ghost hunters do their thing.  With so many people attending Dragon*Con who can actually distinguish fact from fiction, it’s no wonder that many people are interested in the actual science & skepticism tracks.

I will outline all the things I did here – lecturing on the Large Hadron Collider & particle physics, participating on the Science of Star Wars panel, moderating the Darwin’s Bulldogs panel on teachers combating creationism, and participating on the Skepticism in the Classroom panel – in future posts.  What I want to discuss for the rest of this post is why it is that I think having skeptics present at events like Dragon*Con is important in the first place…

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Conversation with an Anti-LHC Lunatic

Posted by mattusmaximus on June 5, 2009

As a quick follow up to a recent post – LHC Lunacy & Doomsday Scenarios – I wanted to share with you an online discussion I had with a physics woo on this topic.  The conversation with James Blodgett, who seems to have a history of opposing the Large Hadron Collider on pseudoscientific grounds, is recorded on the Science & Technology subforum of the JREF Forum.

Allow me to, as a lesson in the kind of thinking employed by many pseudoscientists, point out some of the more egregious statements & arguments by Mr. Blodgett and why they are so off-base…

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LHC Lunacy & Doomsday Scenarios

Posted by mattusmaximus on May 23, 2009

In my last post, I took various physics woo-meisters to task for being what I call “Einstein cranks”.  However, another class of physics crank deserves some notice, if only because they have made their cranky ideas so public and obvious.  These are the cranks who believe the Large Hadron Collider is going to destroy the Earth by the creation of a black hole or strangelet.

**Aside: Even if the worst-case scenario were to come true, and a planet-eating black hole were to be formed in the LHC, this blog entry explains quite clearly why there is no concern.

All I can say is… balderdash… complete and utter pseudoscientific fear-mongering & balderdash.  The following video from The Daily Show illustrates just how silly these arguments can be…

The arguments from these folks range from simply not understanding basic physics to delusional conspiracy mongering. Walter Wagner, the man in the video above, illustrates a perfect storm of woo regarding this issue.  Allow me to list some of the flaws in his reasoning more specifically…

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Posted in conspiracy theories, physics denial/woo | Tagged: , , , , , , , , , , , , , , , , , , , | 19 Comments »

Real Scientists vs. Wanna-Be’s

Posted by mattusmaximus on February 16, 2009

I just got finished attending a couple of days of the joint AAPT & AAAS winter meeting in Chicago, and I must say it was an interesting couple of days! It’s always nice to attend these conferences so that one can connect with the wider scientific & teaching community out there.

While I was at the conference, I attended a fascinating series of talks on some of the latest research coming out of FermiLab, the perfect material for a total physics geek like me. The most interesting stuff at that symposium was the work being done at FermiLab on attempts to detect the Higgs boson and even dark matter!

fermilab

Briefly, the Higgs boson (also called the Higgs field) is a fundamental particle of nature which is believed by particle physics theorists to exist “beneath” all other particles. All the other fundamental particles of nature – from leptons to quarks to gluons and photons (plus many more) – interact with the Higgs field in a way which determines the mass of the particle. Those particles which interact more strongly with the Higgs have a higher mass. And the Higgs boson forms the last, big missing link in what is called the Standard Model of particle physics (kind of like a periodic table for the fundamental particles of nature). In order to complete the Standard Model, experimentalists need to find evidence of the Higgs in particle accelerators.

The speaker on the Higgs research openly stated at one point in his talk that if scientists at FermiLab or the Large Hadron Collider couldn’t ever find evidence of the Higgs, then that would be more exciting than if they did find such evidence. This is because if no evidence of the Higgs could ever be found, then it would call into question the entire structure of the Standard Model. This would then, in turn, lead to a new revolution in physics, just as Max Planck’s quantum hypothesis in the early 20th century led to the (then) new field of quantum mechanics.

The next really interesting moment came when I was listening to the scientist trying to detect dark matter at FermiLab. Briefly, of all the matter in the universe, only about 3% of it is what we call standard luminous (or baryonic) matter. Most of the rest, about 85-90%, is so-called dark matter (not to be confused with dark energy) – which is matter that emits no electromagnetic radiation at all. The only manner in which we can detect dark matter is through its gravitational influence upon normal matter. Incidentally, three big lines of evidence converge to convince us that dark matter is a reality – gravitational lensing effects, peculiar behavior of galactic rotation curves, and the motion of galaxies in galactic clusters.

However, for the physicist researching dark matter, this isn’t enough. In order for dark matter to really be established as the real thing, he and others in the scientific community want to find it in the lab. So he’s undertaking a series of bubble chamber experiments at FermiLab in an attempt to directly detect dark matter particles. And all physicists acknowledge that dark matter, as yet, has no place in the Standard Model – so this means the Standard Model only describes about 3% of all the matter in the known universe!

I’m not going to go into any more of the details of these talks, but I just wanted to mention something very important that I noted in them. In both cases, the scientists involved in this cutting-edge research were very clear to point out how little we really knew about these subjects. They also made a big point to note that they were perfectly happy to have their experiments fail to detect the Higgs and dark matter, because that would mean we have to completely rework many of our theories of physics.

Far from being rigid dogmatists, as many inaccurately portray the scientific community, these people displayed what real science is all about – putting your hypothesis on the line and letting the observations & experiments be the final arbiter of what’s right and what’s wrong. Real science continually questions its assumptions.

It has been my experience that the real dogmatists are the pseudoscientific cranks, who are basically wanna-be scientists. They latch onto an idea they think is cool, but in spite of all evidence to the contrary they’ll hold onto these discredited ideas. And, in many cases, after they are unable to offer proof of their ideas, the cranks will attack the scientific community for being “dogmatic” and – sometimes – even accuse it of a conspiracy to hide the “truth”. Worse yet, some pseudoscientists propose ideas which aren’t scientific at all – because they can never be falsified – yet they want these notions to have the elevated status of science anyway. They think that by putting on a lab coat and calling their ideas science, that somehow it magically becomes science!

No amount of woo will ever interest me as much as real science. Even if these attempts to detect the Higgs boson and dark matter fail utterly, we’ll have learned so much in going through the process of scientific exploration that it will have all been worth it. And that’s what makes real science so exciting – we don’t know what nature has in store for us!

In closing this post, I’ll reference the words of a great skeptic & advocate for science, Dr. Phil Plait – astronomer & the president of the JREF – when he said: “The universe is cool enough without making up crap about it!”

Posted in scientific method, Uncategorized | Tagged: , , , , , , , , , , , , , , , , , , , , , | 4 Comments »

 
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