Tale of the Tapeworm (Squeamish Readers Stop Here) - New York Times
Fish tapeworm can make you sick (and it is hard to diagnose). I wonder if there are any Australian cases?
Wednesday, August 09, 2006
To boldly go where no cockroach has gone before
news @ nature.com-Space hotel gets a check-up - Inflated craft is holding up, but fate of guests remains uncertain.
This is funny: the small prototype inflatable space hotel has got cockroaches already:
The cockroaches were last seen alive on 16 June, when they were loaded in mesh-covered boxes into the craft. They were left in captivity, dining on water and dried dog kibble, until the delayed launch on 12 July subjected them to vibrations and acceleration. They were then in a vacuum for a few minutes before the Genesis I craft was deployed and inflated.
That would be enough to kill many creatures, but not necessarily the hardy cockroach, which can survive many weeks without food. Charles Cockell, now a professor at the Planetary and Space Sciences Research Institute of Open University, UK, once studied how well cockroaches can withstand a drop in atmospheric pressure. At 100 millibars — one-tenth of normal atmospheric pressure - the bugs actively pumped air into their abdomens to survive, he found, swelling themselves up in the process to about one and a half times the normal size. "It's pretty gross actually," says Cockell.
Bigelow Aerospace tested a number of different cockroaches and found that the Madagascar hissing roach, which can grow to more than 7.5 centimetres long and can weigh as much as 24 grams, proved that they had the right stuff by enduring more than 2 hours in a vacuum. "After 20 to 30 minutes they came back to life and we thought 'Oh my gosh, they deserve to go to space'," says Bigelow.
Let's hope that space radiation doesn't turn them into super mutuant cockroaches who return to earth to create havoc. (I like to consider all possibilities.)
This is funny: the small prototype inflatable space hotel has got cockroaches already:
The cockroaches were last seen alive on 16 June, when they were loaded in mesh-covered boxes into the craft. They were left in captivity, dining on water and dried dog kibble, until the delayed launch on 12 July subjected them to vibrations and acceleration. They were then in a vacuum for a few minutes before the Genesis I craft was deployed and inflated.
That would be enough to kill many creatures, but not necessarily the hardy cockroach, which can survive many weeks without food. Charles Cockell, now a professor at the Planetary and Space Sciences Research Institute of Open University, UK, once studied how well cockroaches can withstand a drop in atmospheric pressure. At 100 millibars — one-tenth of normal atmospheric pressure - the bugs actively pumped air into their abdomens to survive, he found, swelling themselves up in the process to about one and a half times the normal size. "It's pretty gross actually," says Cockell.
Bigelow Aerospace tested a number of different cockroaches and found that the Madagascar hissing roach, which can grow to more than 7.5 centimetres long and can weigh as much as 24 grams, proved that they had the right stuff by enduring more than 2 hours in a vacuum. "After 20 to 30 minutes they came back to life and we thought 'Oh my gosh, they deserve to go to space'," says Bigelow.
Let's hope that space radiation doesn't turn them into super mutuant cockroaches who return to earth to create havoc. (I like to consider all possibilities.)
Pump in the gas
ScienceDaily: Deep-sea Sediments Could Safely Store Man-made Carbon Dioxide
Some optimistic researchers say that pumping CO2 into deep ocean sediments could be the way to go:
Schrag and his colleagues say an ideal storage method could be the injection of carbon dioxide into ocean sediments hundreds of meters thick. The combination of low temperature and high pressure at ocean depths of 3,000 meters turns carbon dioxide into a liquid denser than the surrounding water, removing the possibility of escape and ensuring virtually permanent storage.
Injecting carbon dioxide into seafloor sediments rather than squirting it directly into the ocean traps the gas, minimizing damage to marine life while ensuring that the gas will not eventually escape to the atmosphere via the mixing action of ocean currents. At sufficiently extreme deep-sea temperatures and pressures, carbon dioxide moves beyond its liquid phase to form solid and immobile hydrate crystals, further boosting the system's stability. The scientists say that thus stored, the gas would be secure enough to withstand even the most severe earthquakes or other geomechanical upheaval.
Some optimistic researchers say that pumping CO2 into deep ocean sediments could be the way to go:
Schrag and his colleagues say an ideal storage method could be the injection of carbon dioxide into ocean sediments hundreds of meters thick. The combination of low temperature and high pressure at ocean depths of 3,000 meters turns carbon dioxide into a liquid denser than the surrounding water, removing the possibility of escape and ensuring virtually permanent storage.
Injecting carbon dioxide into seafloor sediments rather than squirting it directly into the ocean traps the gas, minimizing damage to marine life while ensuring that the gas will not eventually escape to the atmosphere via the mixing action of ocean currents. At sufficiently extreme deep-sea temperatures and pressures, carbon dioxide moves beyond its liquid phase to form solid and immobile hydrate crystals, further boosting the system's stability. The scientists say that thus stored, the gas would be secure enough to withstand even the most severe earthquakes or other geomechanical upheaval.
Interesting commentary on Lebanon
Stopping the battle would not mean stopping the war on Israel - Opinion
The above piece is from The Age today, and takes a sceptical line on the calls for Israel to stop when there is no permanent solution in the pipeworks.
The article makes many good points. I like this one in particular:
The conventional wisdom holds that any military action is counterproductive. The doves point out that the Israeli counteroffensive has boosted Hezbollah's standing in the Arab world.
Well, sure. But Hezbollah's prestige was also boosted by Israel's 2000 withdrawal from Lebanon. If aggressive Israeli actions boost Hezbollah, and conciliatory Israeli actions boost Hezbollah, then maybe Israel's actions aren't really the prime mover here. Maybe Hezbollah has figured out that it can become the champion of the Arab world by putting itself forward as Israel's chief antagonist.
The above piece is from The Age today, and takes a sceptical line on the calls for Israel to stop when there is no permanent solution in the pipeworks.
The article makes many good points. I like this one in particular:
The conventional wisdom holds that any military action is counterproductive. The doves point out that the Israeli counteroffensive has boosted Hezbollah's standing in the Arab world.
Well, sure. But Hezbollah's prestige was also boosted by Israel's 2000 withdrawal from Lebanon. If aggressive Israeli actions boost Hezbollah, and conciliatory Israeli actions boost Hezbollah, then maybe Israel's actions aren't really the prime mover here. Maybe Hezbollah has figured out that it can become the champion of the Arab world by putting itself forward as Israel's chief antagonist.
Tuesday, August 08, 2006
It will all end in tears
Softbank Capital invests $5 mln in Huffington Post | Politics News | Reuters.com
Hard to believe, hey? Huffington Post is a mile wide but an inch deep. Its political analysis and commentary is only marginally above that of Daily Kos, and confirms that most celebrity figures are only good at repeating other people's lines.
Hard to believe, hey? Huffington Post is a mile wide but an inch deep. Its political analysis and commentary is only marginally above that of Daily Kos, and confirms that most celebrity figures are only good at repeating other people's lines.
Monday, August 07, 2006
Kids movies recently seen
Having children of primary and sub-primary age means that most of the movies I get to see are not exactly Citizen Kane. But, good movies for children can be enjoyable for adults, especially in the animated field, where the writers now spend much effort on adult oriented jokes. Some movies I have seen recently on DVD or the cinema:
Over the Hedge: not bad, not great. But (speaking of Citizen Kane) any movie which has an opossum (voiced by William Shatner) ending a prolonged fake death scene by saying "Rosebud" has got something going for it.
Madagascar: good. Some quite eccentric characters and good voice work made this quite enjoyable.
Sky Captain and the World of Tomorrow: A slightly weird exercise in over-the-top art deco/pulp science fiction style. Very watchable for its remarkable computer generated looks, it could have been much better if everything in it was not on such a ridiculously gargantuan scale. Checking Rotten Tomatoes, I had forgotten that it got quite a good overall rating, although even the good reviews had to admit the plot and script were lacking. (As one reviewer there says, "The only thing keeping it from greatness is a good story.") However, it went on to be a box office failure (well, $37 million). I suspect one of the reasons is that audiences don't care much for movies which seem to be in an alternative history setting. Also, even though I can quite like her on screen, Gwyneth Paltrow's line delivery seemed somewhat "off" here.
Wallace & Grommit - The Curse of the Were-Rabbit: While never over-excited by the W& G shorts, this movie was (to my surprise) funnier and more charming than the previous incarnations, and did not suffer at all from being extended to movie length. The rabbits are cute for the kids, the lampooning of English society works well for the adults, and Grommit continues his stoic ways.
Over the Hedge: not bad, not great. But (speaking of Citizen Kane) any movie which has an opossum (voiced by William Shatner) ending a prolonged fake death scene by saying "Rosebud" has got something going for it.
Madagascar: good. Some quite eccentric characters and good voice work made this quite enjoyable.
Sky Captain and the World of Tomorrow: A slightly weird exercise in over-the-top art deco/pulp science fiction style. Very watchable for its remarkable computer generated looks, it could have been much better if everything in it was not on such a ridiculously gargantuan scale. Checking Rotten Tomatoes, I had forgotten that it got quite a good overall rating, although even the good reviews had to admit the plot and script were lacking. (As one reviewer there says, "The only thing keeping it from greatness is a good story.") However, it went on to be a box office failure (well, $37 million). I suspect one of the reasons is that audiences don't care much for movies which seem to be in an alternative history setting. Also, even though I can quite like her on screen, Gwyneth Paltrow's line delivery seemed somewhat "off" here.
Wallace & Grommit - The Curse of the Were-Rabbit: While never over-excited by the W& G shorts, this movie was (to my surprise) funnier and more charming than the previous incarnations, and did not suffer at all from being extended to movie length. The rabbits are cute for the kids, the lampooning of English society works well for the adults, and Grommit continues his stoic ways.
Steyn interview on your ABC
Counterpoint - 7August 2006 - Mark Steyn, Dorothy Fields and Global Conflict
I am guessing he won't be appearing on Phillip Adam's Late Night Live, but Mark Steyn was interviewed by Michael Duffy on Counterpoint today. The link will take you to the audio. (I haven't listened to it yet.)
I am guessing he won't be appearing on Phillip Adam's Late Night Live, but Mark Steyn was interviewed by Michael Duffy on Counterpoint today. The link will take you to the audio. (I haven't listened to it yet.)
Some useful suggestions on the Middle East?
A tale of two failed Mideast states | csmonitor.com
From the above article:
Washington should, accordingly, not take a passive "wait and see" approach to the increasing violence being exported from both the Gaza Strip and Lebanon, and the increasing lawlessness in those areas, but should rather act forcefully in order to make it clear that it will not allow Gaza and Lebanon to remain failed states.
This requires that the US and the international community: a) actively pressure Syria to end its involvement in Lebanon and its continued undermining of Lebanese sovereignty (despite its ostensible "withdrawal" from Lebanon last year); b) actively pressure the Lebanese government to deploy its Army in the south and to disarm Hizbullah (if necessary with the assistance of a multinational force); and c) move toward the establishment of some type of international trusteeship over the Gaza Strip, which will involve the deployment of multinational forces, possibly including Egyptian forces, to disarm militants in Gaza and stabilize the political, economic, and security situation there.
Israeli actions alone will not bring stability to these failed states and are likely to only temporarily weaken Hamas and other Palestinian factions, as well as the Lebanese Hizbullah. This is a problem of global dimensions, and only the world's sole superpower can take the lead in addressing it.
Seems to me the problem would be be with getting international co-operation in any multinational forces, and in particulare getting an Islamic country on board. (Will Egypt really want to be involved?)
From the above article:
Washington should, accordingly, not take a passive "wait and see" approach to the increasing violence being exported from both the Gaza Strip and Lebanon, and the increasing lawlessness in those areas, but should rather act forcefully in order to make it clear that it will not allow Gaza and Lebanon to remain failed states.
This requires that the US and the international community: a) actively pressure Syria to end its involvement in Lebanon and its continued undermining of Lebanese sovereignty (despite its ostensible "withdrawal" from Lebanon last year); b) actively pressure the Lebanese government to deploy its Army in the south and to disarm Hizbullah (if necessary with the assistance of a multinational force); and c) move toward the establishment of some type of international trusteeship over the Gaza Strip, which will involve the deployment of multinational forces, possibly including Egyptian forces, to disarm militants in Gaza and stabilize the political, economic, and security situation there.
Israeli actions alone will not bring stability to these failed states and are likely to only temporarily weaken Hamas and other Palestinian factions, as well as the Lebanese Hizbullah. This is a problem of global dimensions, and only the world's sole superpower can take the lead in addressing it.
Seems to me the problem would be be with getting international co-operation in any multinational forces, and in particulare getting an Islamic country on board. (Will Egypt really want to be involved?)
Free storage space
AOL using Xdrive to offer free space - Los Angeles Business from bizjournals:
A couple of years ago, I tried using a free online storage service. It worked OK, but uploads were fairly slow (which probably says more about Australia's pathetically slow internet services than the storage service itself.) The free service I tried was soon stopped and became subscription only.
AOL is now to offer 5 GB free to everyone. How nice. Will it last?
A couple of years ago, I tried using a free online storage service. It worked OK, but uploads were fairly slow (which probably says more about Australia's pathetically slow internet services than the storage service itself.) The free service I tried was soon stopped and became subscription only.
AOL is now to offer 5 GB free to everyone. How nice. Will it last?
Lightning and stupidity
NOAA News Online (Story 2676)
Opinion Dominion has strong views on how stupid people can be about lightning. A future post will detail one particularly good example of this from first hand experience. In the meantime, the NOAA (see link) warns people not to be stupid. It won't work.
Opinion Dominion has strong views on how stupid people can be about lightning. A future post will detail one particularly good example of this from first hand experience. In the meantime, the NOAA (see link) warns people not to be stupid. It won't work.
Carbon offsets offset
Carbon offsets | Sins of emission | Economist.com
The short piece from the Economist about carbon offset problems is worth a look. Mind you, The Economist still thinks that in general they are a good idea in theory. The problem is in the implementation.
The short piece from the Economist about carbon offset problems is worth a look. Mind you, The Economist still thinks that in general they are a good idea in theory. The problem is in the implementation.
Further co-operation from Iran
Defiant Iran threatens to use 'oil weapon' against sanctions - World - Times Online
From the above:
In a blunt response to international concern about Iran’s nuclear ambitions, Ali Larijani, the chief negotiator on atomic issues, said that Tehran was ready for a showdown with world powers when the matter was taken up by the UN Security Council this month.
“We will expand nuclear technology at whatever stage it may be necessary and all of Iran’s nuclear technology including the [centrifuge] cascades will be expanded,” he said in Tehran.
The announcement was regarded not simply as another rhetorical outburst from Tehran but rather the precursor of a formal reply to the West which will be delivered in full on August 22....
Mr Larijani said yesterday that Iran had a right under the nuclear Non-Proliferation Treaty (NPT) to build a civilian nuclear programme. He said Iran was planning to expand its operations at the heavily-guarded Natanz facility in central Iran, where the authorities hope to have 3,000 centrifuges — which enrich uranium by spinning it at supersonic speeds — operating by the end of this year. “We will expand nuclear activities where required. It includes all nuclear technology including the string of centrifuges,” he said. ”We won’t accept suspension.”
Why not just set up a big football field sized poster saying "Bomb me now (or as soon as you finish up in Lebanon)" ?
From the above:
In a blunt response to international concern about Iran’s nuclear ambitions, Ali Larijani, the chief negotiator on atomic issues, said that Tehran was ready for a showdown with world powers when the matter was taken up by the UN Security Council this month.
“We will expand nuclear technology at whatever stage it may be necessary and all of Iran’s nuclear technology including the [centrifuge] cascades will be expanded,” he said in Tehran.
The announcement was regarded not simply as another rhetorical outburst from Tehran but rather the precursor of a formal reply to the West which will be delivered in full on August 22....
Mr Larijani said yesterday that Iran had a right under the nuclear Non-Proliferation Treaty (NPT) to build a civilian nuclear programme. He said Iran was planning to expand its operations at the heavily-guarded Natanz facility in central Iran, where the authorities hope to have 3,000 centrifuges — which enrich uranium by spinning it at supersonic speeds — operating by the end of this year. “We will expand nuclear activities where required. It includes all nuclear technology including the string of centrifuges,” he said. ”We won’t accept suspension.”
Why not just set up a big football field sized poster saying "Bomb me now (or as soon as you finish up in Lebanon)" ?
Europe still thinking about making travel expensive
MPs call for VAT on flights as greenhouse gas emissions soar - Britain - Times Online
By the way, what is the "Green" way to travel within Europe? Is it by train, ship or what? Is it time to bring back airships? (Hey, I just think they look cool.)
By the way, what is the "Green" way to travel within Europe? Is it by train, ship or what? Is it time to bring back airships? (Hey, I just think they look cool.)
Saturday, August 05, 2006
"But I'm not dead yet!"
New Scientist News - Not brain-dead, but ripe for transplant
Interesting article on doctors reconsidering when to treat patients as dead.
Interesting article on doctors reconsidering when to treat patients as dead.
Against wind power
Matthew Stevens: The answer isn't blowing in the wind | News | The Australian
This is an interesting article explaining why wind power is not the great benefit that it would seem. For example:
...even in those states with the most ambitious renewables targets, South Australia and Victoria, the net effect of wind power on carbon dioxide emissions will be negligible, if not illusory. According to another recent study, if Victoria reaches its target of 1000 megawatts of renewable generation capacity by 2016 (the state currently boasts about 120MW of wind capacity), its share of national greenhouse gas emissions will fall from 32 per cent to 28 per cent by 2020.
But in raw numbers, Victoria's power plants will be pumping out 24 per cent more carbon dioxide by 2020 than they do in 2006 because, quite simply, Victorians will be using much more power.
I suppose it can still be argued that it is better to have some of that electricity produced by clean wind power than an alternative CO2 producing means, otherwise the total future CO2 output will be even higher than that already bad forecast.
But it would seem that the more important message is that, in reality, windpower is just fiddling around the edges of the problem. What's worse, such fiddling can give an impression of significance that is undeserved.
This is an interesting article explaining why wind power is not the great benefit that it would seem. For example:
...even in those states with the most ambitious renewables targets, South Australia and Victoria, the net effect of wind power on carbon dioxide emissions will be negligible, if not illusory. According to another recent study, if Victoria reaches its target of 1000 megawatts of renewable generation capacity by 2016 (the state currently boasts about 120MW of wind capacity), its share of national greenhouse gas emissions will fall from 32 per cent to 28 per cent by 2020.
But in raw numbers, Victoria's power plants will be pumping out 24 per cent more carbon dioxide by 2020 than they do in 2006 because, quite simply, Victorians will be using much more power.
I suppose it can still be argued that it is better to have some of that electricity produced by clean wind power than an alternative CO2 producing means, otherwise the total future CO2 output will be even higher than that already bad forecast.
But it would seem that the more important message is that, in reality, windpower is just fiddling around the edges of the problem. What's worse, such fiddling can give an impression of significance that is undeserved.
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