We are coming of age as a type 1 civilization on the Kardashev scale. Very exciting.
April 25, 2007, 5:59 pm
Frustrated with the limits of public policy to tackle global warming, some scientists say the time has come to engineer a way to control the weather. The idea might seem appealing, says a science scholar, but it could have potentially harmful ramifications.
Climate engineering has become a popular topic among a group of scientists who are skeptical of the potential other environmental remedies, from carbon taxes to alternative energy, James R. Fleming, a professor of science, technology and society at Colby College, writes in the Wilson Quarterly’s spring issue. But the potential fixes being discussed reflect an overconfidence in technology, Mr. Fleming says, as well as an ignorance of the history of failed efforts to control the weather.
One idea put forth by a physicist involved in climate-control discussions would involve bombarding the Arctic stratosphere with specially engineered particles to deflect (more…)
sweeeeet.
- 05 January 2006
- Haiko Lietz
EVERY year, the American Institute of Aeronautics and Astronautics awards prizes for the best papers presented at its annual conference. Last year’s winner in the nuclear and future flight category went to a paper calling for experimental tests of an astonishing new type of engine. According to the paper, this hyperdrive motor would propel a craft through another dimension at enormous speeds. It could leave Earth at lunchtime and get to the moon in time for dinner. There’s just one catch: the idea relies on an obscure and largely unrecognised kind of physics. Can they possibly be serious?
I think we should name it Caprica. Agree? Disagree?
Astronomers have found the most Earth-like planet outside our Solar System to date, a world which could have water running on its surface. The planet orbits the faint star Gliese 581, which is 20.5 light-years away in the constellation Libra.
Scientists made the discovery using the Eso 3.6m Telescope in Chile.
They say the benign temperatures on the planet mean any water there could exist in liquid form, and this raises the chances it could also (more…)
I’ve decided to create a whole new category for things that remind us that we are really in the future.
By Scott Hillis
SAN FRANCISCO (Reuters) – When the aliens finally invade Earth, you may wish you had listened to Travis Taylor and Bob Boan.
And if the invasion follows the plot of a typical Hollywood blockbuster, they might also be the guys called in at the last minute to save the day.
After all, they have written “An Introduction to Planetary Defense”, a primer on how humanity can defend itself if little green men wielding death rays show up at our cosmic doorstep.
And yes, they’re serious.
from here
Richard Norton-Taylor
Monday April 9, 2007
The Guardian
The MoD predicts more use of chemical weapons. Photograph: Paul J Richards/EPA
Information chips implanted in the brain. Electromagnetic pulse weapons. The middle classes becoming revolutionary, taking on the role of Marx’s proletariat. The population of countries in the Middle East increasing by 132%, while Europe’s drops as fertility falls. “Flashmobs” – groups rapidly mobilised by criminal gangs or terrorists groups.This is the world in 30 years’ time envisaged by a Ministry of Defence team responsible for painting a picture of the “future strategic context” likely to face Britain’s armed forces. It includes an “analysis of the key risks and shocks”. Rear Admiral Chris Parry, head of the MoD’s Development, Concepts & Doctrine Centre which drew up the report, describes the assessments as “probability-based, rather than predictive”.
The 90-page report comments on widely discussed issues such as the growing economic importance of India and China, the militarisation of space, and even what it calls “declining news quality” with the rise of “internet-enabled, citizen-journalists” and pressure to release stories “at the expense of facts”. It includes other, some frightening, some reassuring, potential developments that are not so often discussed.
New weapons
An electromagnetic pulse will probably become operational by 2035 able to destroy all communications systems in a selected area or be used against a “world city” such as an international business service hub. The development of neutron weapons which destroy living organs but not buildings “might make a weapon of choice for extreme ethnic cleansing in an increasingly populated world”. The use of unmanned weapons platforms would enable the “application of lethal force without human intervention, raising consequential legal and ethical issues”. The “explicit use” of chemical, biological, radiological, and nuclear weapons and devices delivered by unmanned vehicles or missiles.
Technology
By 2035, an implantable “information chip” could be wired directly to the brain. A growing pervasiveness of information communications technology will enable states, terrorists or criminals, to mobilise “flashmobs”, challenging security forces to match this potential agility coupled with an ability to concentrate forces quickly in a small area.
Marxism
“The middle classes could become a revolutionary class, taking the role envisaged for the proletariat by Marx,” says the report. The thesis is based on a growing gap between the middle classes and the super-rich on one hand and an urban under-class threatening social order: “The world’s middle classes might unite, using access to knowledge, resources and skills to shape transnational processes in their own class interest”. Marxism could also be revived, it says, because of global inequality. An increased trend towards moral relativism and pragmatic values will encourage people to seek the “sanctuary provided by more rigid belief systems, including religious orthodoxy and doctrinaire political ideologies, such as popularism and Marxism”.
Filed under: quaint expression
That’s Liz up in the title picture, walking and picking flowers.
The prospect of all-female conception
By Steve Connor, Science Editor
Published: 13 April 2007
news.independent.co.uk/world/science_technology/article2444462.ece [independent.co.uk]
Women might soon be able to produce sperm in a development that could allow lesbian couples to have their own biological daughters, according to a pioneering study published today.
Scientists are seeking ethical permission to produce synthetic sperm cells from a woman’s bone marrow tissue after showing that it possible to produce rudimentary sperm cells from male bone-marrow tissue.
The researchers said they had already produced early sperm cells from bone-marrow tissue taken from men. They believe the findings show that it may be possible to restore fertility to men who cannot naturally produce their own sperm.
But the results also raise the prospect of being able to take bone-marrow tissue from women and coaxing the stem cells within the female tissue to develop into sperm cells, said Professor Karim Nayernia of the University of Newcastle upon Tyne.
Creating sperm from women would mean they would only be able to produce daughters because the Y chromosome of male sperm would still be needed to produce sons. The latest research brings the prospect of female-only conception a step closer.
“Theoretically is it possible,” Professor Nayernia said. “The problem is whether the sperm cells are functional or not. I don’t think there is an ethical barrier, so long as it’s safe. We are in the process of applying for ethical approval. We are preparing now to apply to use the existing bone marrow stem cell bank here in Newcastle. We need permission from the patient who supplied the bone marrow, the ethics committee and the hospital itself.”
If sperm cells can be developed from female bone-marrow tissue they will be matured in the laboratory and tested for their ability to penetrate the outer “shell” of a hamster’s egg – a standard fertility test for sperm.
“We want to test the functionality of any male and female sperm that is made by this way,” Professor Nayernia said. But he said there was no intention at this stage to produce female sperm that would be used to fertilise a human egg, a move that would require the approval of the Human Fertilisation and Embryology Authority.
The immediate aim is to see if female bone marrow can be lured into developing into the stem cells that can make sperm cells. The ultimate aim is to discover if these secondary stem cells can then be made into other useful tissues of the body, he said.
The latest findings, published in the journal Reproduction: Gamete Biology, show that male bone marrow can be used to make the early “spermatagonial” stem cells that normally mature into fully developed sperm cells.
“Our next goal is to see if we can get the spermatagonial stem cells to progress to mature sperm in the laboratory and this should take around three to five years of experiments,” Professor Nayernia said.
Last year, Professor Nayernia led scientists at the University of Gottingen in Germany who became the first to produce viable artificial sperm from mouse embryonic stem cells, which were used to produce seven live offspring.
His latest work on stem cells derived from human bone marrow suggests that it could be possible to develop the techniques to help men who cannot produce their own sperm naturally.
“We’re very excited about this discovery, particularly as our earlier work in mice suggests that we could develop this work even further,” Professor Nayernia said.
Whether the scientists will ever be able to develop the techniques to help real patients – male or female – will depend on future legislation that the Government is preparing as a replacement to the existing Human Fertilisation and Embryology Act.
A White Paper on genetics suggested that artificial gametes produced from the ordinary “somatic” tissue of the body may be banned from being used to fertilise human eggs by in vitro fertilisation.
Making babies without me
