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Showing posts with label Science & Technology. Show all posts
Showing posts with label Science & Technology. Show all posts

Saturday, November 01, 2014

Impure as the driven snow: pollution in the Arctic



From Jason Box's Dark Snow Project.


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All original material is copyright of its author. Fair use permitted. Contact via comment. Unless indicated otherwise, all internet links accessed at time of writing. Nothing here should be taken as personal advice, financial or otherwise. No liability is accepted for third-party content, whether incorporated in or linked to this blog; or for unintentional error and inaccuracy. The blog author may have, or intend to change, a personal position in any stock or other kind of investment mentioned.

Wednesday, July 09, 2014

Frackquakes: evidence


"Did a train just go past?"

John Martin: The Great Day Of His Wrath

A professor of seismology links soaring seismic activity on Oklahoma to fracking; an industry-sponsored research association dismisses the effects as negligible.

(Htp: Chris Martenson's Peak Prosperity site).

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All original material is copyright of its author. Fair use permitted. Contact via comment. Unless indicated otherwise, all internet links accessed at time of writing. Nothing here should be taken as personal advice, financial or otherwise. No liability is accepted for third-party content, whether incorporated in or linked to this blog; or for unintentional error and inaccuracy. The blog author may have, or intend to change, a personal position in any stock or other kind of investment mentioned.

Saturday, May 10, 2014

Electric aircraft: you couldn't make it up

The spoof (from last month's BOM)
 
The reality: EADS E-Fan (source)
Turns out it wasn't a joke, after all. There really is a potentially commercial electric plane being developed - and it's not the first to fly. Though short-flight, it recharges quickly (about an hour) and fuel costs are allegedly one-third that of conventional flying.

I'm not sure how that cost claim stands up in the accounting - the electricity is generated elsewhere and ultimately implies a vast web of economic activity, so it would be an interesting challenge to compare the work achieved/costs of conventional and electric air transport in purely energy terms, say along EREOI lines.

But there could also be an exercise on relative disbenefits - noise and air pollution (including the high-altitude water vapour that I think has some effect on weather and climate) - and the economic costs of same. (Electric might spike the guns of the chemtrail conspiracy people.)

Here's the video of this new creation:



Cheaper than windmill-powered?


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All original material is copyright of its author. Fair use permitted. Contact via comment. Unless indicated otherwise, all internet links accessed at time of writing. Nothing here should be taken as personal advice, financial or otherwise. No liability is accepted for third-party content, whether incorporated in or linked to this blog; or for unintentional error and inaccuracy. The blog author may have, or intend to change, a personal position in any stock or other kind of investment mentioned.

Monday, May 05, 2014

Healthy diets are bad for you?

WRONG! (apparently...)
(pic source)

Computer expert and financial maven Karl Denninger lost a lot of weight a couple of years ago. He's keen to spread the news that carbohydrates are the enemy.

Repeating his message today, Denninger references a WSJ article by investigative journalist Nina Teicholz, trailing her dietary-fat book that is due out next week. The article reveals that the research recommending the so-called "Mediterranean diet" was deeply flawed:

"Dr. Keys visited Crete during an unrepresentative period of extreme hardship after World War II. Furthermore, he made the mistake of measuring the islanders' diet partly during Lent, when they were forgoing meat and cheese. Dr. Keys therefore undercounted their consumption of saturated fat. Also, due to problems with the surveys, he ended up relying on data from just a few dozen men—far from the representative sample of 655 that he had initially selected."

It now seems that official dietary advice has been not only wrong, but lethally so:

"Excessive carbohydrates lead not only to obesity but also, over time, to Type 2 diabetes and, very likely, heart disease. The real surprise is that, according to the best science to date, people put themselves at higher risk for these conditions no matter what kind of carbohydrates they eat. Yes, even unrefined carbs. Too much whole-grain oatmeal for breakfast and whole-grain pasta for dinner, with fruit snacks in between, add up to a less healthy diet than one of eggs and bacon, followed by fish. The reality is that fat doesn't make you fat or diabetic. Scientific investigations going back to the 1950s suggest that actually, carbs do."

One dramatic claim is that in the light of this new knowledge, Type 2 diabetes can be reversed. Newcastle University Professor Roy Taylor recommends weight loss through a calorie-reduced diet. However, diabetes blogger Janet Ruhl's take on this is that cutting calories implies cutting carbohydrates; it's not the weight that's the problem, but the insulin-level-jangling carbs.


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All original material is copyright of its author. Fair use permitted. Contact via comment. Unless indicated otherwise, all internet links accessed at time of writing. Nothing here should be taken as personal advice, financial or otherwise. No liability is accepted for third-party content, whether incorporated in or linked to this blog; or for unintentional error and inaccuracy. The blog author may have, or intend to change, a personal position in any stock or other kind of investment mentioned.

Friday, April 25, 2014

Fly Greenways, the carbon-neutral airline!


Worried about global warming but would still like to fly abroad on business and for holidays?

Hop over the pond with our revolutionary new wind-turbine-driven miniliner! Tilt your seat back and sip your complimentary drink with a clear conscience as our naturally-powered luxury craft wafts you to your destination!

Note: travel dependent on ambient wind speeds of 120 knots-plus; journeys may be interrupted by lulls. No refunds.

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All original material is copyright of its author. Fair use permitted. Contact via comment. Unless indicated otherwise, all internet links accessed at time of writing. Nothing here should be taken as personal advice, financial or otherwise. No liability is accepted for third-party content, whether incorporated in or linked to this blog; or for unintentional error and inaccuracy. The blog author may have, or intend to change, a personal position in any stock or other kind of investment mentioned.

Thursday, April 24, 2014

Waning sun to lead to new Little Ice Age?

A frozen windmill (pic source)

"Climate sceptics" may like to read the website of Habibullo I. Abdussamatov, a Russian astrophysicist specialising in the study of the Sun.

He says that it has long cycles of variation in sunspot activity and total radiance, and predicts a stable cooling period starting now and bottoming out late this century, with a drop in average temperature of 1 - 1.5 degrees Celsius.

Perhaps we should be building more coal-fired power stations, like the Chinese.


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All original material is copyright of its author. Fair use permitted. Contact via comment. Unless indicated otherwise, all internet links accessed at time of writing. Nothing here should be taken as personal advice, financial or otherwise. No liability is accepted for third-party content, whether incorporated in or linked to this blog; or for unintentional error and inaccuracy. The blog author may have, or intend to change, a personal position in any stock or other kind of investment mentioned.

Sunday, April 20, 2014

More water mystery: H3O2

 
Layers of EZ (exclusion zone) water next to hydrophilic material
From Prof Gerald H Pollack's TED lecture
Youtube: https://www.youtube.com/watch?v=i-T7tCMUDXU

Water appears so simple, yet ...

A few days ago we looked at the Mpemba effect, whereby hot water freezes faster than cold. As yet there is no single, universally-agreed explanation.

Today AK Haart shows us a TED lecture by award-winning Professor Gerald H Pollack from the University of Washington, about the "fourth phase" of water (apart from solid, liquid and vapour). Truly fascinating, especially in its potential uses (e.g. desalination, purification, energy production):



And just this last Thursday there was a BBC4 programme about plants, which at one point showed that inside leaves, the light-utilising chloroplasts that make starch actually move about in response to sunlight, seemingly to utilise the energy most efficiently.

The clip (available only for a few days more) is here: http://www.bbc.co.uk/programmes/p011kv6c.

Chloroplasts "jostling for position"
from "Botany: A Blooming History" (BBC4, 17 April 2014)

Could the electrically-charged layers of water described by Professor Pollack explain this movement?

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All original material is copyright of its author. Fair use permitted. Contact via comment. Unless indicated otherwise, all internet links accessed at time of writing. Nothing here should be taken as personal advice, financial or otherwise. No liability is accepted for third-party content, whether incorporated in or linked to this blog; or for unintentional error and inaccuracy. The blog author may have, or intend to change, a personal position in any stock or other kind of investment mentioned.

Tuesday, April 15, 2014

The Mpemba Effect

Mpemba effect (source: Daily Mail)

A homely article in the Daily Mail includes a tip for making ice cubes faster: use hot water.

Warm water cools faster than cold, a counterintuitive fact known as the Mpemba Effect. There are a number of suggested explanations but the latest (covered a few months ago in the DM) focuses on the weak bonds between water molecules, which is why water forms long chains. The latest theory says the bonds are stretched when the liquid is warmed, and snap back as it cools.

It seems that this new theory is not complete.

I have an amateur tweak: boiling not only stretches the long molecule chains, but breaks them, and it takes some time for them to re-form. During this period it may be easier for the separated molecules (or short molecule chains) to reassemble into the crystalline structure of ice, than for long liquid chains to be converted into the solid form.

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All original material is copyright of its author. Fair use permitted. Contact via comment. Unless indicated otherwise, all internet links accessed at time of writing. Nothing here should be taken as personal advice, financial or otherwise. No liability is accepted for third-party content, whether incorporated in or linked to this blog; or for unintentional error and inaccuracy. The blog author may have, or intend to change, a personal position in any stock or other kind of investment mentioned.

Monday, March 24, 2014

Stem cell therapy in tenth century Japan

Taira no Sadamori (picture source)

"The tale of Masakado offers a grotesque window into the superstitions and savageries of combat in the tenth century, not merely in his own behaviour, but in that of his opponents. In one of its sidebars, we hear of Sadamori's quest for a male foetus - the crucial ingredient in a magical cure for a bad wound that he has sustained. He first orders his pregnant daughter-in-law to give up what she is carrying, and is only thwarted by a doctor who tells him that his unborn grandchild would not be suitable. Instead, he slices up a pregnant kitchen maid, although her foetus is female, and hence useless. It is only with yet another death among his retinue that he finally obtains the foetus required. The horrific story may be an invention, although its details are true to folk remedies of the period, in which powdered foetus was indeed used as a cure for battle wounds."

Jonathan Clements, "The Samurai: A  New History of the Warrior Elite" (Robinson, 2010)

Superstition? Magic? Or pragmatic medicine?

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All original material is copyright of its author. Fair use permitted. Contact via comment. Unless indicated otherwise, all internet links accessed at time of writing. Nothing here should be taken as personal advice, financial or otherwise. No liability is accepted for third-party content, whether incorporated in or linked to this blog; or for unintentional error and inaccuracy. The blog author may have, or intend to change, a personal position in any stock or other kind of investment mentioned.

Wednesday, March 12, 2014

Oceans protecting us from global warming? For how long?

Are the scientists researching climate change allowing sufficiently for the moderating role of water?

Water has a high specific heat capacity. The same energy that raises the temperature of water by 1°C, will make copper hotter by more than 10°C.

This Time article (November 2013) reports "the vast oceans carry 93% of the stored energy from climate change, compared to just 1% for the atmosphere, with melting ice and landmasses making up the rest." Some of that energy goes to raising the temperature at certain depths.

But water has other ways of processing heat. It can expand, so that could be one of the reasons sea levels are rising.

There is also water's tendency to form chains of molecules - or even rings - and presumably heat energy will be used in the breaking of these structures, and there's a lot of them in the Earth's 1.3 billion cubic kilometres of ocean.

Another energy-employing phase change is evaporation. “The atmosphere’s water vapor content has increased by about 0.41 kilograms per square meter (kg/m²) per decade since 1988, and natural variability in climate just can’t explain this moisture change," says this article.

And then there's claims and counterclaims about melting ice. The argument is plagued by complexity because of the warming, cooling, evaporating and precipitating effects of wind currents and the difficulty of measuring ice thickness as well as extent.

The thermal absorption properties of water may have bought us more time, but they don't let us completely off the hook. Just as we are learning to discount climate change alarmists, we should look more skeptically at the sanguinists. There's a huge difference between "small chance" and "no chance", as we have found in financial matters; also, between "a long time ahead" and "never".

And then there's the at present theoretical concern about all that methane currently trapped in the oceans - by the water structures known as "clathrates", structures that heat energy can break.

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All original material is copyright of its author. Fair use permitted. Contact via comment. Unless indicated otherwise, all internet links accessed at time of writing. Nothing here should be taken as personal advice, financial or otherwise. No liability is accepted for third-party content, whether incorporated in or linked to this blog; or for unintentional error and inaccuracy. The blog author may have, or intend to change, a personal position in any stock or other kind of investment mentioned.

Thursday, February 20, 2014

Byways

AK Haart wonders about the uselessness of much research, calling it "remunerated gossip" (a phrase that might be re-used to describe modern Parliamentary proceedings). 

Yet we never know where a line of enquiry might lead, and how profitably. Look at penicillin: Alexander Fleming was not the first to discover its bactericidal effect, and when he did he soon gave up trying to exploit it

Edward de Bono, the "lateral thinking" man, noted that we come to useful ideas or solutions in roundabout ways and only then build a straight path from A to B. The internet - which itself has developed into something nobody expected - is bound to result in countless fruitful connections being made, by the sort of creative intellectual bummeln that web-surfing allows. 

Granted, there will also be rubbish and (apparent) dead-ends, but if one in a billion notions gets us somewhere, then 2.4 billion users playing with the Net on pretty much a daily basis are certainly going to come up with something.

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All original material is copyright of its author. Fair use permitted. Contact via comment. Unless indicated otherwise, all internet links accessed at time of writing. Nothing here should be taken as personal advice, financial or otherwise. No liability is accepted for third-party content, whether incorporated in or linked to this blog; or for unintentional error and inaccuracy. The blog author may have, or intend to change, a personal position in any stock or other kind of investment mentioned.

Saturday, February 15, 2014

Storms and man-made disaster

"We are apt to believe that today we experience more violent upheavals of Nature than in past generations, but this is not so. Heavy storms and exceptional weather phenomena occurred much the same in past years as now."

Reginald M. Lester, "The Observer's Book Of Weather", Frederick Warne & Co. Ltd (1955)

But we can make things worse, whether it be the EU-directed failure to dredge rivers that has exacerbated the flooding this year or the late-19th-century dredging of the pebble beach at Hallsands that led to the sea's destruction of the whole village in 1917.

We've been planning to revisit possibly the best fish and chip restaurant in England (the Start Bay Inn at Torcross in Devon's South Hams), but fear the worst after the recent weather:





Some think efforts to stop coastal erosion at Slapton Ley are ultimately doomed, anyway.

All original material is copyright of its author. Fair use permitted. Contact via comment. Unless indicated otherwise, all internet links accessed at time of writing. Nothing here should be taken as personal advice, financial or otherwise. No liability is accepted for third-party content, whether incorporated in or linked to this blog; or for unintentional error and inaccuracy. The blog author may have, or intend to change, a personal position in any stock or other kind of investment mentioned.

Sunday, February 09, 2014

Plenty more fish in the sea - and they're storing carbon for us!

From The Conversation website, a report suggesting that we may have massively underestimated the quantity of sealife in the middle levels of the ocean. It may not be catchable, but it could be helping sequester carbon and so reduce the threat of global warming.

http://theconversation.com/fish-in-the-twilight-cast-new-light-on-ocean-ecosystem-22987

All original material is copyright of its author. Fair use permitted. Contact via comment. Unless indicated otherwise, all internet links accessed at time of writing. Nothing here should be taken as personal advice, financial or otherwise. No liability is accepted for third-party content, whether incorporated in or linked to this blog; or for unintentional error and inaccuracy. The blog author may have, or intend to change, a personal position in any stock or other kind of investment mentioned.

Saturday, February 01, 2014

Wi-Fi sky-spy eye on you - all the time!

Not only does your car spy on you and constantly report your whereabouts, so (if you've ever used free Wi-Fi) does your smartphone or portable computer - and the tattletale goes back in time to when you bought the thing.

All original material is copyright of its author. Fair use permitted. Contact via comment. Unless indicated otherwise, all internet links accessed at time of writing. Nothing here should be taken as personal advice, financial or otherwise. No liability is accepted for third-party content, whether incorporated in or linked to this blog; or for unintentional error and inaccuracy. The blog author may have, or intend to change, a personal position in any stock or other kind of investment mentioned.

Thursday, October 31, 2013

Doglight

Pic source: http://www.aef.com/exhibits/awards/clio_awards/2005/11

America's 80 million dogs produce 11 million (US) tons of faeces every year, according to this article from NorthJersey.com, which is about DNA-testing the waste and prosecuting non-pooper-scooping owners.

What to do with it?

In these energy conservation conscious times, conceptual artist Matthew Mazzotta suggests using it as a power source for street lighting - see his Park Spark project here.

All original material is copyright of its author. Fair use permitted. Contact via comment. Unless indicated otherwise, all internet links accessed at time of writing. Nothing here should be taken as personal advice, financial or otherwise. No liability is accepted for third-party content, whether incorporated in or linked to this blog; or for unintentional error and inaccuracy. The blog author may have, or intend to change, a personal position in any stock or other kind of investment mentioned.

Wednesday, October 23, 2013

Fukushima radiation: should we worry?

First, the scare. Michael Snyder gives a raft of facts to show that post-Fukushima, radiation levels have increased around the west coast of America. Professor Michel Chossudovsky discusses the spread of radiactive fallout from Japan under the shock title "... A Nuclear War Without A War..." - somwhat insensitively bearing in mind that Japan is the only country to have been atom-bombed. The Liberty Beacon relays official US information on the plume of water-borne radioactivity.

Then, some critical comment and reassurance. American Live Wire shows that a dramatic graphic purporting to show the spread of radiation across the Pacific is actually a map of increased wave height from the tsunami. And the ever-informative xkcd freely offers the following infographic on normal and acceptable radiation dosage (click on caption for full size picture):

http://xkcd.com/radiation/
Finally, the rational concern: as with the now-banned pesticide DDT, the most significant potential damage could be concentration of the toxic substances as they rise through the food chain. Now, shoppers in Korea are using Geiger counters to check imports of "eastern sea" fish, and as early as January 2012 the readings from seaweed were 3 times higher than background:



Fish (like tuna) that eat other fish; scavengers like crab and lobster; plankton and krill (and the whales that eat them), squid... we may be advised not to eat Pacific seafood. Already Seoul has banned imports from the Fukushima region. And it's possible that wildlife is suffering from the disaster.

What if there was a bigger disaster? There's been much excited speculation about the consequences of a potential collapse of the spent fuel storage that could result in fire and evacuation. Paul Blustein at Slate.com discusses this coolly and concludes that it could be very bad, though not apocalyptic.

All original material is copyright of its author. Fair use permitted. Contact via comment. Unless indicated otherwise, all internet links accessed at time of writing. Nothing here should be taken as personal advice, financial or otherwise. No liability is accepted for third-party content, whether incorporated in or linked to this blog; or for unintentional error and inaccuracy. The blog author may have, or intend to change, a personal position in any stock or other kind of investment mentioned.

Sunday, October 20, 2013

Seven climate theories


Or is it eight... or nine?

Back in 2010 a booklet called Seven Theories of Climate Change by Joseph L. Bast was published by the Science and Public Policy Institute.

It lists seven climate change theories, one of them being the AGW CO2 theory. The booklet is worth reading not so much because it delimits what we know of climate drivers, but because it highlights how exceedingly complex the issue is. Vastly more complex than popular journalism would have us believe.

Climate science is dominated by uncertainty and there are also highly uncertain connections between these theories, so I’ll merely summarise them below. Additional theories and ideas from readers are very welcome – this is an evolving, not an evolved science.
----------------------------------------------------------------------------------

1 Anthropogenic Global Warming
The mainstream theory of climate change heavily promoted for reasons beyond the scope of this post. Greenhouse gases, primarily carbon dioxide, methane, and nitrous oxide are said to be causing a catastrophic rise in global temperatures.

2 Bio-thermostat
The second theory of climate change is really a number of theories bundled together. Feedbacks from biological and chemical processes are said to contribute towards global temperature stability by suppressing temperature increases. These are :- 
  • Enhanced carbon sequestration by plants as atmospheric CO2 increases, thereby causing increased rates of plant growth.
  • Carbonyl sulphide (COS) produced biologically is said to form sulphate aerosols in the atmosphere which reflect solar radiation and lead to a cooling effect.
  • Biosols are biologically derived plant compounds which circulate in the atmosphere and may act as condensation nuclei for clouds. They may also diffuse solar radiation close to the ground, reducing the effect of shade and increasing photosynthesis and CO2 uptake.
  • Iodine containing compounds formed in sea air by marine algae may act like biosols.
  • Dimethyl sulphide is emitted by oceans and may be a source of cloud condensation nuclei.
  • Other aerosols. There are other natural aerosols which may also have an impact on climate.

3 Cloud Formation and Albedo
A third theory says that the climate is controlled by the formation and albedo of clouds.

4 Land Use
A fourth theory is that climate is affected by large scale changes in land use such as forestry, irrigation and building cities.

5 Ocean Currents
The fifth theory claims that climate cycles are the result of changes to ocean circulation patterns.

6 Planetary Motion
The sixth theory is that gravitational and magnetic oscillations of the solar system cause solar variations and/or other influences which change the terrestrial climate.

7 Solar Variability
The seventh theory is that solar variability accounts for most or all climate change.

All original material is copyright of its author. Fair use permitted. Contact via comment. Unless indicated otherwise, all internet links accessed at time of writing. Nothing here should be taken as personal advice, financial or otherwise. No liability is accepted for third-party content, whether incorporated in or linked to this blog; or for unintentional error and inaccuracy. The blog author may have, or intend to change, a personal position in any stock or other kind of investment mentioned.

Monday, October 14, 2013

Bad Science: Michael Eisen and sloppy peer review

The following is reposted with the kind permission of the author, Michael Eisen, a biologist at the University of California, Berkeley. The original appeared on his blog on October 3 with the title "I confess, I wrote the Arsenic DNA paper to expose flaws in peer-review at subscription based journals."

The ease with which substandard research papers slip through the reviewing system and into publication is worrying in its implications, since (for example) we are in the middle of very expensive programs to tackle what many scientists are telling us is the threat of climate change. Clearly more work needs to be done in quality control if we are to retain our confidence in scientific expertise.

In 2011, after having read several really bad papers in the journal Science, I decided to explore just how slipshod their peer-review process is. I knew that their business depends on publishing “sexy” papers. So I created a manuscript that claimed something extraordinary - that I’d discovered a species of bacteria that uses arsenic in its DNA instead of phosphorus. But I made the science so egregiously bad that no competent peer reviewer would accept it. The approach was deeply flawed – there were poor or absent controls in every figure. I used ludicrously elaborate experiments where simple ones would have done. And I failed to include a simple, obvious experiment that would have definitively shown that arsenic was really in the bacteria’s DNA. I then submitted the paper to Science, punching up the impact the work would have on our understanding of extraterrestrials and the origins of life on Earth in the cover letter. And what do you know? They accepted it!

My sting exposed the seedy underside of “subscription-based” scholarly publishing, where some journals routinely lower their standards – in this case by sending the paper to reviewers they knew would be sympathetic - in order to pump up their impact factor and increase subscription revenue. Maybe there are journals out there who do subscription-based publishing right – but my experience should serve as a warning to people thinking about submitting their work to Science and other journals like it.

OK – this isn’t exactly what happened. I didn’t actually write the paper. Far more frighteningly, it was a real paper that contained all of the flaws described above that was actually accepted, and ultimately published, by Science.

I am dredging the arsenic DNA story up again, because today’s Science contains a story by reporter John Bohannon describing a “sting” he conducted into the peer review practices of open access journals. He created a deeply flawed paper about molecules from lichens that inhibit the growth of cancer cells, submitted it to 304 open access journals under assumed names, and recorded what happened. Of the 255 journals that rendered decisions, 157 accepted the paper, most with no discernible sign of having actually carried out peer review. (PLOS ONE, rejected the paper, and was one of the few to flag its ethical flaws).

The story is an interesting exploration of the ways peer review is, and isn’t, implemented in today’s biomedical publishing industry. Sadly, but predictably, Science spins this as a problem with open access. Here is their press release:
Spoof Paper Reveals the “Wild West” of Open-Access Publishing
A package of news stories related to this special issue of Science includes a detailed description of a sting operation — orchestrated by contributing news correspondent John Bohannon — that exposes the dark side of open-access publishing. Bohannon explains how he created a spoof scientific report, authored by made-up researchers from institutions that don’t actually exist, and submitted it to 304 peer-reviewed, open-access journals around the world. His hoax paper claimed that a particular molecule slowed the growth of cancer cells, and it was riddled with obvious errors and contradictions. Unfortunately, despite the paper’s flaws, more open-access journals accepted it for publication (157) than rejected it (98). In fact, only 36 of the journals solicited responded with substantive comments that recognized the report’s scientificproblems. (And, according to Bohannon, 16 of those journals eventually accepted the spoof paper despite their negative reviews.) The article reveals a “Wild West” landscape that’s emerging in academic publishing, where journals and their editorial staffs aren’t necessarily who or what they claim to be. With his sting operation, Bohannon exposes some of the unscrupulous journals that are clearly not based in the countries they claim, though he also identifies some journals that seem to be doing open-access right.
Although it comes as no surprise to anyone who is bombarded every day by solicitations from new “American” journals of such-and-such seeking papers and offering editorial positions to anyone with an email account, the formal exposure of hucksters out there looking to make a quick buck off of scientists’ desires to get their work published is valuable. It is unacceptable that there are publishers – several owned by big players in the subscription publishing world – who claim that they are carrying out peer review, and charging for it, but no doing it.

But it’s nuts to construe this as a problem unique to open access publishing, if for no other reason than the study, didn’t do the control of submitting the same paper to subscription-based publishers (UPDATE: The author, Bohannon emailed to say that, while his original intention was to look at all journals, practical constraints limited him to OA journals, and that Science played no role in this decision). We obviously don’t know what subscription journals would have done with this paper, but there is every reason to believe that a large number of them would also have accepted the paper (it has many features in common with the arsenic DNA paper afterall). Like OA journals, a lot of subscription-based journals have businesses based on accepting lots of papers with little regard to their importance or even validity. When Elsevier and other big commercial publishers pitch their “big deal”, the main thing they push is the number of papers they have in their collection. And one look at many of their journals shows that they also will accept almost anything.

None of this will stop anti-open access campaigners (hello Scholarly Kitchen) from spinning this as a repudiation for enabling fraud. But the real story is that a fair number of journals who actually carried out peer review still accepted the paper, and the lesson people should take home from this story not that open access is bad, but that peer review is a joke. If a nakedly bogus paper is able to get through journals that actually peer reviewed it, think about how many legitimate, but deeply flawed, papers must also get through. Any scientist can quickly point to dozens of papers – including, and perhaps especially, in high impact journals – that are deeply, deeply flawed – the arsenic DNA story is one of many recent examples. As you probably know there has been a lot of smoke lately about the “reproducibility” problem in biomedical science, in which people have found that a majority of published papers report facts that turn out not to be true. This all adds up to showing that peer review simply doesn’t work.

And the real problem isn’t that some fly-by-night publishers hoping to make a quick buck aren’t even doing peer review (although that is a problem). While some fringe OA publishers are playing a short con, subscription publishers are seasoned grifters playing a long con. They fleece the research community of billions of dollars every year by convincing them of something manifestly false – that their journals and their “peer review” process are an essential part of science, and that we need them to filter out the good science – and the good scientists – from the bad. Like all good grifters playing the long con, they get us to believe they are doing something good for us – something we need. While they pocket our billions, with elegant sleight of hand, then get us to ignore the fact that crappy papers routinely get into high-profile journals simply because they deal with sexy topics.

But unlike the fly by night OA publishers who steal a little bit of money, the subscription publishers’ long con has far more serious consequences. Not only do they traffic in billions rather than thousands of dollars and denying the vast majority of people on Earth access to the findings of publicly funded research, the impact and glamour they sell us to make us willing participants in their grift has serious consequences. Every time they publish because it is sexy, and not because it is right, science is distorted. It distorts research. It distorts funding. And it often distorts public policy.

To suggest – as Science (though not Bohannon) are trying to do – that the problem with scientific publishing is that open access enables internet scamming is like saying that the problem with the international finance system is that it enables Nigerian wire transfer scams.

There are deep problems with science publishing. But the way to fix this is not to curtain open access publishing. It is to fix peer review.

First, and foremost, we need to get past the antiquated idea that the singular act of publication – or publication in a particular journal – should signal for all eternity that a paper is valid, let alone important. Even when people take peer review seriously, it is still just represents the views of 2 or 3 people at a fixed point in time. To invest the judgment of these people with so much meaning is nuts. And its far worse when the process is distorted – as it so often is – by the desire to publish sexy papers, or to publish more papers, or because the wrong reviewers were selected, or because they were just too busy to do a good job. If we had, instead, a system where the review process was transparent and persisted for the useful life of a work (as I’ve written about previously), none of the flaws exposed in Bohannon’s piece would matter.

All original material is copyright of its author. Fair use permitted. Contact via comment. Unless indicated otherwise, all internet links accessed at time of writing. Nothing here should be taken as personal advice, financial or otherwise. No liability is accepted for third-party content, whether incorporated in or linked to this blog; or for unintentional error and inaccuracy. The blog author may have, or intend to change, a personal position in any stock or other kind of investment mentioned.

Thursday, September 12, 2013

Flywheel energy storage

 Beacon Power has updated the old idea of short-term energy storage via flywheels:-

Flywheel energy storage works by accelerating a cylindrical assembly called a rotor (flywheel) to a very high speed and maintaining the energy in the system as rotational energy. The energy is converted back by slowing down the flywheel. The flywheel system itself is a kinetic, or mechanical battery, spinning at very high speeds to store energy that is instantly available when needed.

The primary use at the moment appears to be frequency regulation for electricity generation, a well-known problem with wind and solar, especially solar. As Beacon Power says:-

To ensure a functional and reliable grid, the Independent System Operators (ISOs) that operate the various regional grids must maintain their electric frequency very close to 60 hertz (Hz), or cycles per second (50 Hz in Europe and elsewhere). When the supply of electricity exactly matches the demand (or "load"), grid frequency is held at a stable level. Grid operators, therefore, seek to continuously balance electricity supply with load to maintain the proper frequency. They do this by directing about one percent of total generation capacity to increase or decrease its power output in response to frequency deviations.

Not all generators can operate reliably in such a variable way. Changing power output causes greater wear and tear on equipment, and fossil generators that perform frequency regulation incur higher operating costs due to increased fuel consumption and maintenance costs. They also suffer a significant loss in "heat rate" efficiency and produce greater quantities of CO2 and other unwanted emissions when throttling up and down to perform frequency regulation services (my emphasis).

Flywheel storage technology must add substantial frequency regulation costs to wind and solar. In the case of wind in the UK, these are costs which its proponents have so far succeeded in spreading around elsewhere.

All original material is copyright of its author. Fair use permitted. Contact via comment. Unless indicated otherwise, all internet links accessed at time of writing. Nothing here should be taken as personal advice, financial or otherwise. No liability is accepted for third-party content, whether incorporated in or linked to this blog; or for unintentional error and inaccuracy. The blog author may have, or intend to change, a personal position in any stock or other kind of investment mentioned.

Tuesday, September 10, 2013

Energy efficiency: method vs. objective

Alzetta's petrol-driven mechanical horse (Pic: http://cyberneticzoo.com/?p=2595)

Is our thinking radical enough? Imagine if all we had done in the twentieth century was to replace living horses with mechanical ones to pull carts and waggons.

Similarly, making internal combustion engines more efficient and cleaner is good, but this still focuses on cars as a method rather than re-examines what they're for. ATOC reckons rail is better:

"... on average, passenger rail currently emits approximately half the carbon dioxide per passenger kilometre of cars and around a quarter that of domestic air... This analysis is based on average figures. Quite clearly, in any specific example, the occupancy of the vehicle is key. A fully-loaded car will perform well on a CO2 per passenger km basis compared to the most efficient train with very few people in it. Similarly the averages quoted here cover a range of traffic conditions and may well differ from those of individual operators running specific services. Nonetheless these average figures clarify the starting position. Further work is needed to consider the effect of practical policy options open to us to reduce emissions from transport."

Shame about Beeching, then; and about the way that rail travel has become so expensive on certain routes. Privatisation may have helped certain entrepreneurs and (indirectly) some politicians, but there was nothing much wrong with the old transport system in Birmingham in 1975, and the lower level of car ownership then. Now, some of my young colleagues prefer to run a car instead of building a pension and saving up to buy a house - this DM article says that lower earners can be paying 27% of their disposable income in this way.

On the other hand, there is a welcome new realism about "green transport" in the air. This week there will be an EU vote in Strasbourg on revising targets for the contribution of biofuels to energy production, as London MEP Mary Honeyball explains. This is, it seems in response to growing awareness of the impact of corn ethanol production on food prices; plus the relative expensiveness of alternative fuels. The EC Commissioner for Energy Günther Oettinger also admits that electric vehicles will contribute less to the solution than previously expected (see this video at 1:20 in).

Rather than design better mechanical horses, it would help more if we and our stuff were in the right places to start with. To quote Douglas Adams, one of the finest philosophers of the twentieth century:

"Bypasses are devices that allow some people to dash from point A to point B very fast while other people dash from point B to point A very fast. People living at point C, being a point directly in between, are often given to wonder what's so great about point A that so many people from point B are so keen to get there, and what's so great about point B that so many people from point A are so keen to get there. They often wish that people would just once and for all work out where the hell they wanted to be."

Many of our current solutions are a sort of Marie Antoinette washed-sheep playing with a fantasy version of reality; alternative technologies can be cute and clean without really being green.

All original material is copyright of its author. Fair use permitted. Contact via comment. Unless indicated otherwise, all internet links accessed at time of writing.

Nothing here should be taken as personal advice, financial or otherwise. No liability is accepted for third-party content, whether incorporated in or linked to this blog; or for unintentional error and inaccuracy. The blog author may have, or intend to change, a personal position in any stock or other kind of investment mentioned.