Three thousand hackers
One clapped out Compaq between them.
3724 posts • joined 28 Feb 2007
One clapped out Compaq between them.
Just what Australia needed - bigger bugs.
Mold TV or just mould?
The African collision is responsible for everything from the Atlas Mountains through the Alps and Carpathians to the massive deformation of the Aegean Sea. Further East it is Arabia which is crunching into Europe along the Zagros. Until recently (say 30My) Arabia was part of Africa, but it has now become a separate plate by the emplacement of the Afar Mantle Plume under the Southern Red Sea where a new constructive margin has formed.
The Himalaya are the result of India whacking into Eurasia at 20cm pa (nice analogy of yours by the way).
Mantle currents don't seem to directly drive continental movements. Much more important are vertical displacements - such as dynamic uplift of continents over hot Mantle plumes which cause material to slide sideways towards lower elevations (such as is happening in the African Rift, the Western United States and Central China), and, at the other end of the process, the subduction of dense material into the Mantle which drags ocean crust after it.
Pangaea was just the latest in a series of supercontinents. It was made by assembling Gondwana (pedant note: you don't need the 'land' since Gondwana means 'land of the Gonds') which is a borderline supercontinent of its own as well as Laurentia, Baltica and Siberia.
Before that there was Pannotia around the 0.6Gy mark which is associated with the Pan African Orogeny that created the modern African continent, that followed the surprisingly long-lived Rodinia (1.25-0.75Gy) that contained pretty much everything apart from the Kalahari and the Congo craton.
Prior to that things get a bit hazier because the magnetic records of rocks have largely been overprinted by later orogenies. The Columbia (Nuna) supercontinent around 1.8-1.5Gy is highly likely to have existed - odd place - eastern India docked to where California would be and Australia neighbours with Canada.
Further back there is Kenorland which seems to be associated with diamonds and iron formations between 2.7Gy and 2.0Gy, and the hazy Ur that work in South Africa and Australia suggests might date as far back as 3.6Gy. But at that point the geology is getting seriously buggered and whilst it is possible to work out the sort of processes that were going on (a mix of modern subduction and weird buckling of continents), it's almost impossible to relate the continental fragments to one another.
Subduction doesn't mean the ocean is closing, only that some of the oceanic lithosphere has become cold enough and old enough to lose most of its bouyancy. The Atlantic will only be in trouble once its spreading ridge is subducted; a similar thing has happened the East Pacific Rise under the Western United States which is why the ground there is - stretchy.
The Atlantic is going to more closely resemble the Indian ocean which is still opening and doing a splendid job of (amongst other things) building the Himalayas, but there is active subduction of its crust at Makran under Pakistan, under the Indonesian Arc and in and around Vanuatu. There's also a region to the South of New Zealand, the Macquarie Fault Zone, where subduction appears to be starting, much like what is going on under Portugal right now.
'That's bad news for Portugal and even for Britain, which Dr Duarte thinks will eventually become part of the subduction zone. '
Bad news? Bad news? Clearly the author isn't a geologist. This is amazing news - Cornwall is going to get volcanoes!
To eat or throw at the hordes of the undead?
'For 1% of my profits, would anybody care to suggest a name for my device?'
Ladies and gentlemen, introducing the new hypoallegenic R-Swipe.
Will the government (and the Opposition) tell us if they are happy with the NSA trawling our data and are they okay about British companies using US-based IT services for their business?
"Please unplug and stop using the product immediately,"
Yourself and then unplug the Dildo of Death.
To promote their own free ISP offering a 'service' filtered to buggery that is untroubled by illegal torrents, mad mullahs and anything pink and wobbly (perhaps excepting blancmange).
And let's see how many people sign up.
Well that'll make the Daily Mail happy.
At least for five minutes - until a case comes along when it's revealed the perpetrator was within half a mile of a sleeping computer that *could* easily have been hacked by Eastern European migrants to display non-Associated Newspapers approved titillation - and then they'll be off again.
And he could fix the music at the same time.
I'm sure it's only modesty that is stopping Lester from putting his own name forward, so can I nominate him. This man has been to the back of beyond (Rockall), touched the edge of space, sampled strange new foodstuffs and even has his own adorable donkey sidekick.
Lester Haines for the Doctor, sonic screwdriver and a crafty rollup at the ready.
As far as I know no one has yet linked the Internet to this horrible crime - so I'd very much appreciate it if politicians stopped using this poor man's death to further their own ambitions. His family are being used as political, ideological and religious punchbags when they just need time to mourn.
Absolutely sick of it.
When is Sweden sending up its next astronaut - zero G surströmming anyone?
From the dawn of YouTube: http://www.youtube.com/watch?v=vcnfEVqNdoA
Another ex-BEer here. I switched over to Xilo and haven't had a problem. Customer support is top notch if you do need to call them.
Well said. And by the sounds of it, the Intelligence services knew plenty about the accused but still didn't do anything. The only way this law would help is if a future terrorist updates their Facebook status to 'Off murdering innocent civilians'
'can't introduce a new law to get what you want? Just interpret the current law as you see fit, job done! '
And when the law is struck down by the courts you can blame the judges. It's a win-win-win for the oooh-isn't-the-internet-terrible? people over at the Mail.
'Lib Dem MP Julian Huppert - a long-standing opponent of May's proposals - was told by the prime minister that it was not "helpful to refer to taking action on communications data as a snoopers' charter".'
Not helpful, but certainly accurate.
That's a quite magnificent piece of artexing there. Probably laden with asbestos, but a work of art in its own right.
I had a chat with one of the amazing blokes at Astrium who built Beagle and they were down to shaving fractions of a gram from the design by the end. They wanted a transmitter that would broadcast for the the whole ejection from ME to landing, but they just couldn't get the mass.
But yes, the UK as always tried to do things on a shoestring, that mass was available on ME so it was worth Colin Pillinger's team having a go. Had it worked it would have been awesome.
That is where faults tend to [riding] crop up.
I was thinking circus cannon...
'EVE takes its economy seriously.'
Very seriously. They employ a full time economist to fine tune their models.
The Central Bank of Iceland could have probably done with someone doing the same.
The grains in lahar deposits are only occasionally sorted and it would be very unusual for lahars to be interspersed with fine grained sandy deposits; whilst it is quite common in rivers.
For his sake I hope it wasn't a jumping cholla with the detaching spines.
Seconding the request for a Playmobil recreation. If it helps, New Mexico isn't *THAT* far (in astronomical terms) from Nevada which contains Area 51 where they're bound to be keeping Optimus Prime.
John Reid serves on the board of G4S, he stands to do very well from more security legislation.
Just how unpleasant and individual John Reid is. So his intervention has done one good thing.
'Called a Dutch Sandwich.'
Whatever you do, don't do an image search for that.
Isn't it close to where they want to build Boris Island?
That'd be the same Bono who moved U2's business to the Netherlands so he could reduce his tax bill?
'when Charles was committed to silicon heaven it was like a death in the family, he is probably frolicking with all the calculators!'
Is that where Roombas come from?
The then brand-new Post Office Tower (as I will always call it) starred in the Doctor Who story, The War Machines - where it hosted an evil supercomputer. Hold on... Joe wasn't allowed into some parts of the building.
I bloody love that tower. For something quite so big it does hide itself quite well at street level, you only get the occasional glimpse until you're really quite close and then it is towering over you.
At one point the Gemini capsule was going to return to Earth under a paraglider:
and very early on, Apollo looked at using rotor blades to perform a landing rather than a splashdown.
The Sistla et al. article also says:
'Our results also show that deeper mineral soils are susceptible to coupled biotic–abiotic effects driven by warming over decades. Although increased decomposer activity did not offset increased carbon inputs in the mineral soil, incubation studies suggest that labile carbon limits tundra mineral-soil-decomposer activity19. Thus, although greater carbon availability at depth may initially increase carbon storage, it remains uncertain whether the ecosystem response observed after 20 years of warming reflects a continued trajectory of increased net carbon storage or a transient state in which an activated decomposer system will ultimately outpace carbon inputs. As such, identifying the mechanisms under which warming stimulates and regulates tundra decomposer activity at depth—where the majority of permafrost soil carbon is stored—remains a pressing challenge.'
In short - work in progress.
I'd throw in the huge deltas of the World - the Nile, Ganges/Brahmaputra, Indus, Mekong and Mississippi. They're very vulnerable to sea level change, they're densely populated, heavily industrialised, highly reliant on agriculture and fresh ground water. They're already vulnerable to storms and flooding, higher sealevels increase erosion, cause salination and allow storms to penetrate further inland and cause more damage.
(Strangely my first reply never seems to have made it on to the page)
'Very odd that scientists have supposedly ignored this.'
They've not ignored it, they didn't think there were significant changes in elevation on the Eastern Seaboard. The ES is considered a passive margin - that is it is effectively tectonically inert - it is not being actively rifted (like the Red Sea) and being extended; subducted and shortened (like the Pacific coast of South America); or sheared (like California). So geologists have previously treated the Mantle, which is at least 60km deep under the ES, as a rigid block in isostatic equilibrium. As such it was reasonable to assume high terraces and wave cut platforms were the result only of changes in sea level.
However, improved seismic techniques have allowed them to calculate the velocity of waves passing through the Upper Mantle and it is not behaving homogeneously, instead some parts under the ES appear to be less dense suggesting the Upper Mantle under a passive margin is not entirely rigid and may be convecting slowly. This is likely to have surface effects, so some of the wave cut platforms along the ES have been pushed up by deep processes and are not wholly due to higher sea levels.
What Lewis' article neglects to say is that the ES isn't the only evidence of high sea levels 3Mya in the World. It has been the benchmark (ahem) in the past because of its excellent exposure. But there are others. What will need to be done is to try and get a better estimate of the actual magnitude of the rise. This new knowledge has made that much harder.
What I find interesting as a geologist is that the ES gets infrequent massive earthquakes which are poorly understood. This might help clarify the situation somewhat.
'Since the Earth's crust is acutally floating on the molten core, it gets pushed down.'
The Earth's Crust is floating on the solid Mantle which undergoes ductile deformation and flows away from the loaded crust.
''Shield', 'terrain' and 'craton' are all pretty much interchangeable (to a five year old geologist)'
Is this a misprint of 'terrane' which is a slice of crust (of any age) which has been docked with another section of crust by subduction or continental collision?
Just a couple of additional points.
Ultramafic eruptions were common in the Archaean (which ended 2.5Gya) although they continued into the Neoproterozoic. There are still some ultramafic eruptions in and around the North West Pacific.
Serpentinite is the product of hydrous metamorphism of ultramafics at low temperatures. You can see some lovely examples at the Lizard in Cornwall where a slice of the ocean crust and the upper Mantle (an ophiolite) has been pushed up over the Cornish slates and shales.
And following discussions on this fair site, set up with Xilo which has been faultless.
BE/Sky continued billing me after telling me they'd discontinued my service and I've been added to all of Sky's mailing and email lists.
I feel sorry for the poor buggers left on what is clearly a sinking ship, customers and BE's excellent support staff.
The new Kobo Aura HD has just about the resolution to let you read a page of A4 if you're prepared to accept small (but very clear) fonts. But something bigger - closer to the old Amazon DX would be ideal.
Not really. Apollo couldn't have put the Hubble into orbit, constructed the ISS or launched Cassini.
Yep, this is high-quality junk television. Wobbly accents galore, far too pretty a cast and the same air of authenticity that the same team brought to The Tudors. Well worth catching.
On a sort of related topic - has anyone heard from Lester recently? I check the seismographs, but nothing obvious in Spain.
You have so much more faith in humanity than me.
And it will get worse when they are available for prescription lenses because there is no way glasses wearers will carry around another pair of (expensive) lenses for the times when Glass is a social faux pas (that is most of the time).
Glass is pretty much doomed the moment the MPAA finds out it is possible to take a flaky, shaky recording of some of a movie in a cinema - the lawyers will have a field day. And in Google versus Hollywood I find it hard to pick who I'd like to lose more.
Seriously - a geologist not producing thin sections is nearly as bad form as them forgetting to leave their hammer at home. Extraterrestrial or impact quartz would be immediately obvious under polarised light.
Why do so many bad papers come out of august Russian scientific organisations these days?
I must admit I've missed all the naked fat people in San Francisco.