3342 posts • joined Wednesday 28th February 2007 21:13 GMT
The ages of the rocks are constrained by radioisotopic dating in associated volcanic deposits.
It's not proximity that's important
The deposits in Montana and Wyoming extend across the KT boundary without interruption so it is possible to get a complete sequence of events.
In many other places the end of the Cretaceous is missing or very poorly defined.
You have to wonder what sort of a person obtains a sick child's medical records through illegal means and then phones the parents to let them know they're going to see that information splashed across the front of the papers. Rebekah Brooks might not face criminal charges, but she deserves to be reviled every time she appears in public.
'The cause of the Columbia Shuttle disaster because they removed insulation from the external fuel tank to save on weight. This allowed ice to build up, which broke off and struck the leading edge of the Shuttles Wing. '
Not quite. The formulation of the foam was changed to reduce its toxicity to workers. This increased the amount of 'popcorning' as trapped gas expanded and blew off chunks of insulation.
The damage to Columbia's wing was done just by insulation, not ice.
b) Closing NoTW is a cynical move that doesn't hurt News International at all
It actually benefits NI. NotW was an expensive operation (all those fake sheikhs, phone taps and bin rummaging doesn't come cheap) with a separate newsroom. Closing that down and producing a 7 day Sun filled with long-lens shots of various microslebs and reality TV articles from the Sun's existing newsroom will save them several tens of millions a year.
The markets will love it, and Rebekah Brooks will get a bit smoochy kiss from Uncle Rupert.
'The only thing missing to make it the ultimate British experience is if it were a mass arrest, and you had five suspects all in the waiting room in an orderly queue waiting for their turn to be arrested.'
Alternatively the suspect tragically stumbles on to a policeman's boots and is then shot trying to escape down a long flight of stairs.
Would be fine with most modern balloons, especially anything made of mylar or similar synthetics.
The real risk is handling large volumes of the stuff. Unsurprisingly it's not easy to buy canisters of hydrogen without a licence. But, that said, we all know how to make it...
This is a very, very awesome idea
And will you be asking for sponsorship money from us humble proles in exchange for getting our names stuck all over BRITNEY* ?
* British Rocket Into Troposphere - Not Exactly Yuri.
Off on hols
It was well known that the holidaying Brooks demanded that electronic copies of the paper were sent to her so she could approve them before they went to print.
Correlation does not imply causation
This article sounds awfully like another one written by Lewis a couple of weeks ago where a number of people pointed out that the Thames freezing in winter had more to do with the river being wider, slower and partially obstructed by the old London Bridge.
If the Sun was responsible for the Little Ice Age you'd expect it to be a global phenomenon. Instead it is predominantly a Northern Hemisphere event with its epicentre over the Atlantic and Western Europe.
A better explanation for the Little Ice Age is that it was the result of increased levels of vulcanism in the Northern Hemisphere which continued through to the mid-19th Century. The most dramatic cooling - around the 1690s occurs at just the same time that ice cores from Greenland show a large increase in sulfur content - fallout from volcanic activity.
The injection of ash and sulfur compounds into the stratosphere would account for most of the observed cooling.
Yep it's right there in the abstract
The article is a very selective reading of the accessible paper which includes the section:
'The finding that the recent hiatus in warming is driven largely by natural factors does not contradict the hypothesis: “most of the observed increase in global average temperature since the mid 20th century is very likely due to the observed increase in anthropogenic greenhouse gas concentrations (14)'
These compounds are short-lived, they are incredibly reactive with moisture - in the atmosphere and in the human lungs and are stabilised as sulfates within a few months of their release. They don't even have the half-life of massive volcanic sulfur emissions which rise into the stratosphere and remain in circulation for years.
The Chinese and Indians will have to curb their sulfur emissions anyway no matter what effect they have on the climate for one reason.
They kill people.
Look up London smog if you have any doubts why massive sulfur emissions are a bad thing.
Agreed - this is a useful warning system
Sophie Ellis-Bextor, Sting, Ricky Gervais and Stephen Merchant? It's like the Four Horsemen of the Broadcasting Apocalypse.
'Any arrests yet on that score, I wonder?'
On the subject of investigating the financial crash - yes they've been busy.
Most of the people who brought Iceland to its knees live abroad and the Icelandic justice system is looking at asking for them to be extradited back to Iceland where the locals are flicking through their books of ancient viking punishments.
A number of lower banking officials have been under investigation by a special investigator and are either on trial or awaiting trial for financial irregularities in the run-up to the kreppa, but the big fish is that ex Prime Minister Geir Haarde is on trial for incompetence.
And since you're bound to be interested, the sale of the assets of Landsbanki is likely to go ahead fairly shortly and will either nearly or totally cover the cost of the British bailout to UK investors.
So the big question is, if Iceland can put its crooks on trial, why are the ex-heads of HBOS, Northern Rock and the Whitehall officials who watched the UK's banks go crazy still free?
This story sounds awfully like all the excitement over manganese nodules in the 1960s and 70s.
For those of tender years; huge areas of the deep ocean are covered with potato-shaped chunks of manganese ore which geologists (being ever creative) called manganese nodules. So in the 1960s everyone got excited that we'd never run out of manganese...
...apart from no one knew how to get the nodules to the surface or to refine them economically, and then we realised we weren't running out of manganese any time soon. Which was good, because any attempt to trawl them from the ocean bottom would have been an ecological catastrophe.
A mylar balloon would be trackable in orbit and not need any batteries or solar cells - the two Echo passive communications satellites in the 1950s were nothing more than huge balloons that reflected radio waves.
How about emulating the Soviet Lunokhod rovers by building a really remote controlled vehicle that children/people can control over the Internet to explore Lester's little hideaway?
Either that or go the whole hog and build a deep frozen aircraft carrier aka. Habbakuk. Doing that in Spain only adds to the irony.
The dogsbreakfastisation of the Mac continues
God I hate these new interfaces. There's no reason to bring an interface designed for a handheld machine to a 29" iMac other than 'because you can'. Likewise, why on earth does a computer calendar need to look like a paper one? Apple seems to have relegated its interface design to the kiddies who used to skin WinAmp.
Didn't Canada also buy
Crappy British submarines?
Come on Canada, you should have learned a lesson that we can't do this death tech.
Murdoch made similar promises when he took over The Times and broke them within months. He knows Hunt 'n co. won't get in the way of his plans.
Now, when's he going to start paying tax on NI's UK's operations?
'I hope you've been training a new Moderatrix?'
Sarah's told us the forums will now be firmly spanked by Jude.
He does not sound like a moderatrix - at least not in my fantasies.
By the way Sarah, if you haven't left yet is there still time to tell you about my fantasies? Sarah? Sarah?
Not allowed to do it
It would constitute dumping radioactive material into the ocean which is forbidden by international treaty.
Can anyone remember the last sane home secretary?
I think it might have been Ken Clarke sometime in the early Mesozoic, but if not you're probably back at Roy Jenkins.
It all depends
On the relative speed of the Earth and the impactor, the angle of incidence and the composition of the meteoroid. A head on collision tends to produce so much energy smaller particles are consumed. Grazing trajectories expose the particles to long periods of heating and they vaporise, and icy or carbonaceous material simply can't survive the deceleration through the atmosphere.
For rock and metal, a rule of thumb is that the very small stuff, like dust, survives intact, Things about the size of a grain of sand to a small piece of gravel burn up as a meteor and almost never reach the surface. Up to a metre they tend to burn up a a fireball, bigger ones may produce a meteorite. Above a metre to 10 metres they usually survive intact to the surface, minus whatever is ablated - but they may disintegrate into meteorite showers. Above that to 100m they tend to explosively fragment into pieces because of deceleration stresses, but large amounts of material will hit the surface. Over 100m and the atmosphere is too insubstantial to slow them and they hit with a catastrophic impact.
...on what it is made from.
The size is an estimate from its brightness - although they might have made some direct radar measurements by now. If the body is made from iron-nickel it will be much brighter than a carbonaceous chondrite which are blacker than coal - so a smaller iron-nickel object will appear as bright as a much larger lump of tarry space goo.
And if it was iron-nickel it would stand a reasonable chance of surviving entry to the atmosphere as they are best able to survive the brutal deceleration intact which does for most stony meteoroids.
I used them twice. The first time was within a few weeks of them setting up and they were absolutely stellar - great price, fast delivery. The second time was a nightmare; you fill in all your details online, do the credit card bit and then they mail you with a scamtastic request for a passport or driving licence impression. Order cancelled, hello John Lewis.
There isn't a bargepole long enough for me to use either company.
If you're ever flying out of the UK, there is some amusement to be had (admittedly not a lot, but when you're at Heathrow you take what little fun you can get) looking at the Dixons duty-free prices and comparing them to Amazon's.
You do have to wonder
If JK Rowling has heard of slash-fiction.
As for your prediction of 'within a week' - five minutes tops.
The horror stories are true
And Comet are the worst - their cable brand of choice is none other than Monster - purveyors of overpriced crap for years now. My parents were conned into paying £60 for a set of cables when they bought their first LCD TV. It was the devil's own job to get Comet to accept the return - only when we brought the set back to the store and loudly demanded to see the manager about a refund on the grounds of misselling could we get them to see sense.