Lifeboat Foundation

November 14, 2008
Computer History Museum, Mountain View, CA

http://ieet.org/index.php/IEET/eventinfo/ieet20081114/

Organized by: Institute for Ethics and Emerging Technologies, the Center for Responsible Nanotechnology and the Lifeboat Foundation

A day-long seminar on threats to the future of humanity, natural and man-made, and the pro-active steps we can take to reduce these risks and build a more resilient civilization. Seminar participants are strongly encouraged to pre-order and review the Global Catastrophic Risks volume edited by Nick Bostrom and Milan Cirkovic, and contributed to by some of the faculty for this seminar.

Continue reading “Global Catastrophic Risks: Building a Resilient Civilization” »

Cross posted from Nextbigfuture

Click for larger image

I had previously looked at making two large concrete or nanomaterial monolithic or geodesic domes over cities which could protect a city from nuclear bombs.

Now Alexander Bolonkin has come up with a cheaper, technological easy and more practical approach with thin film inflatable domes. It not only would provide protection form nuclear devices it could be used to place high communication devices, windmill power and a lot of other money generating uses. The film mass covered of 1 km**2 of ground area is M1 = 2×10**6 mc = 600 tons/km**2 and film cost is $60,000/km**2.
The area of big city diameter 20 km is 314 km**2. Area of semi-spherical dome is 628 km2. The cost of Dome cover is 62.8 millions $US. We can take less the overpressure (p = 0.001atm) and decrease the cover cost in 5 – 7 times. The total cost of installation is about 30–90 million $US. Not only is it only about $153 million to protect a city it is cheaper than a geosynchronous satellite for high speed communications. Alexander Bolonkin’s website

Continue reading “$153 million/city thin film plastic domes can protect against nuclear weapons and bad weather” »

The New York Times reports that Jeffrey Martin and William L. Kubic Jr., two scientists from Los Alamos National Laboratories are proposing a process by which the carbon dioxide — the primary greenhouse gas considered responsible for contributing to global warming — emitted from cars and other polluters would be captured and converted to gasoline, methane and jet fuel.

The bold proposal, which the duo have named “Green Freedom” would create a closed cycle from the emission of greenhouse gasses resulting in the creation of a vast source of renewable energy where today we have an open ended cycle that is considered a global threat.

They say the science is relatively simple and straight forward. Polluted air would be blown over potassium carbonate which would sequester the CO₂, a chemical process would then remove the trapped CO₂ and via a number of established chemical processes it would then be converted to various types of fuel.

Although the process has not been demonstrated and no prototypes have been built the pair claims that the required steps or other chemical processes that they say are close cousins to those required are already in use. In addition, none of the processes violate any known laws of physics and a number of other top researchers have independently made similar suggestions for the sequestration and reuse of emitted CO₂.

This concept is not without its share of controversy and detractors however. With claims of everything from the fact that the economics of the process make it unfeasible to concerns that it will encourage further over–population and sprawl not to mention the worry that proliferation of nuclear power brings with it, it is nevertheless an interesting concept and proves — if nothing else — that through continued investment in breakthrough technologies we can overcome all challenges be they environmental or societal.

Today, the University of Colorado at Boulder made an announcement regarding a very promising technology:

Known as optical frequency comb spectroscopy, the technique is powerful enough to sort through all the molecules in human breath and sensitive enough to distinguish rare molecules that may be biomarkers for specific diseases

Combined with other rapid-response technologies, this could be part of the detection side of a BioShield, a technological immune system for humanity.

The optical frequency comb is a very precise laser for measuring different colors, or frequencies, of light, said Ye. Each comb line, or “tooth,” is tuned to a distinct frequency of a particular molecule’s vibration or rotation, and the entire comb covers a broad spectral range — much like a rainbow of colors — that can identify thousands of different molecules.

Source: University of Colorado at Boulder

Many of you have recently read that a research team at the University of Illinois led by Min-Feng Yu has developed a process to grow nanowires of unlimited length. The same process also allows for the construction of complex, three-dimensional nanoscale structures. If this is news to you, please refer to the links below.

It’s easy to let this news item slip past before its implications have a chance to sink in.

Professor Yu and his team have shown us a glimpse of how to make nanowire based materials that will, once the technology is developed more fully, allow for at least two very significant enhancements in materials science.

1. Nanowires that will be as long as we want them to be. The only limitations that seem to be indicated are the size of the “ink” reservoir and the size of spool that the nanowires are wound on. Scale up the ink supply and the scale up size of the spool and we’ll soon be making cables and fabric. Make the cables long enough and braid enough of them them together and the Space Elevator Games may become even more exciting to watch.

Continue reading “How long did you want that space elevator cable?” »

Via the Global Security Newswire:

WASHINGTON — The United Kingdom announced today that it had finished destroying thousands of decades-old chemical weapons (see GSN, June 6, 2002).

The elimination of the last known “legacy” munitions containing agents such as sulfur mustard and phosgene is in keeping with the nation’s obligations under the Chemical Weapon Convention, a Defense Ministry spokesman said.

The British military began using chemical weapons in World War I, and maintained an offensive program until 1956. The Porton Down research facility was already regularly destroying weapons when the treaty entered into force in the United Kingdom in 1997. A total of 7,000 munitions have been destroyed since 1989, with work ending on March 7.

Continue reading “United Kingdom Destroys ‘Legacy’ Chemical Weapons Stock” »