NASA Mission Will Observe Earth’s Salty Seas

Final preparations are under way for the June 9 launch of the international Aquarius/SAC-D observatory. The mission's primary instrument, Aquarius, will study interactions between ocean circulation, the water cycle and climate by measuring ocean surface salinity.

Engineers at Vandenberg Air Force Base in California are performing final tests before mating Aquarius/SAC-D to its Delta II rocket. The mission is a collaboration between NASA and Argentina's space agency, Comision Nacional de Actividades Espaciales (CONAE), with participation from Brazil, Canada, France and Italy. SAC stands for Satelite de Applicaciones Cientificas. Aquarius was built by NASA's Jet Propulsion Laboratory in Pasadena, Calif., and the agency's Goddard Space Flight Center in Greenbelt, Md.

In addition to Aquarius, the observatory carries seven other instruments that will collect environmental data for a wide range of applications, including studies of natural hazards, air quality, land processes and epidemiology.

The mission will make NASA's first space observations of the concentration of dissolved salt at the ocean surface. Aquarius' observations will reveal how salinity variations influence ocean circulation, trace the path of freshwater around our planet, and help drive Earth's climate. The ocean surface constantly exchanges water and heat with Earth's atmosphere. Approximately 80 percent of the global water cycle that moves freshwater from the ocean to the atmosphere to the land and back to the ocean happens over the ocean.

Salinity plays a key role in these exchanges. By tracking changes in ocean surface salinity, Aquarius will monitor variations in the water cycle caused by evaporation and precipitation over the ocean, river runoff, and the freezing and melting of sea ice.

Salinity also makes seawater denser, causing it to sink, where it becomes part of deep, interconnected ocean currents. This deep ocean "conveyor belt" moves water masses and heat from the tropics to the polar regions, helping to regulate Earth's climate.

"Salinity is the glue that bonds two major components of Earth's complex climate system: ocean circulation and the global water cycle," said Aquarius Principal Investigator Gary Lagerloef of Earth & Space Research in Seattle. "Aquarius will map global variations in salinity in unprecedented detail, leading to new discoveries that will improve our ability to predict future climate."

Aquarius will measure salinity by sensing microwave emissions from the water's surface with a radiometer instrument. These emissions can be used to indicate the saltiness of the surface water, after accounting for other environmental factors. Salinity levels in the open ocean vary by only about five parts per thousand, and small changes are important. Aquarius uses advanced technologies to detect changes in salinity as small as about two parts per 10,000, equivalent to a pinch (about one-eighth of a teaspoon) of salt in a gallon of water.

Aquarius will map the entire open ocean every seven days for at least three years from 408 miles (657 kilometers) above Earth. Its measurements will produce monthly estimates of ocean surface salinity with a spatial resolution of 93 miles (150 kilometers). The data will reveal how salinity changes over time and from one part of the ocean to another.

The Aquarius/SAC-D mission continues NASA and CONAE's 17-year partnership. NASA provided launch vehicles and operations for three SAC satellite missions and science instruments for two.

JPL will manage Aquarius through its commissioning phase and archive mission data. Goddard will manage Aquarius mission operations and process science data. NASA's Launch Services Program at the agency's Kennedy Space Center in Florida is managing the launch.

CONAE is providing the SAC-D spacecraft, an optical camera, a thermal camera in collaboration with Canada, a microwave radiometer,; sensors from various Argentine institutions and the mission operations center there. France and Italy are contributing instruments.

For more information about Aquarius/SAC-D, visit: http://www.nasa.gov/aquarius and http://www.conae.gov.ar/eng/principal.html .

JPL is managed for NASA by the California Institute of Technology in Pasadena.

For more information visit http://www.nasa.gov/mission_pages/aquarius/news/aquarius20110517.html

New Experiments Headed to Station on STS-134/ULF6

The Space Shuttle Endeavour launched to the International Space Station on May 16, carrying with it a mix of research that will be performed on the station during and after the shuttle mission. Nearly 150 experiments are continuing aboard the station as the transition from assembly work to expanded research on the international laboratory progresses. They span the basic categories of biological and biotechnology, human research, physical and materials sciences, technology development, Earth and space science and educational activities.

Among the new experiments flying will be several experiments, flown by NASA in cooperation with the Italian Space Agency, including one that looks at how the same kind of memory shape foam used in beds on Earth might be useful as a new kind of actuator, or servomechanism that supplies and transmits a measured amount of energy for mechanisms. The U.S.-Italian experiments also will look at cellular biology, radiation, plant growth and aging; how diet may affect night vision, and how an electronic device may be able used for air quality monitoring in spacecraft.

One NASA experiment known as Biology will use, among other items, C. elegans worms that are descendants of worms that survived the STS-107 space shuttle Columbia accident. The Rapid Turn Around engineering proof-of-concept test will use the Light Microscopy Microscope to look at three-dimensional samples of live organisms, tissue samples and fluorescent beads.

A NASA educational payload will deliver several toy Lego kits that can be assembled to form satellites, space shuttles and a scale model of the space station itself to demonstrate scientific concepts, and a Japan Aerospace Exploration Agency experiment called Try Zero-G that will help future astronauts show children the difference between microgravity and Earth gravity.

Research activities on the shuttle and station are integrated to maximize return during station assembly. The shuttle serves as a platform for completing short-duration research, while providing supplies and sample-return for ongoing research on station. For a full list of investigations available on this flight, see the STS-134 Press kit or visit http://www.nasa.gov.

For more information visit http://www.nasa.gov/mission_pages/station/research/news/sts134.html

Moon’s Rough ‘Wrinkles’ Reveal Clues To Its Past

Written on the moon's weary face are the damages it has endured for the past 4-1/2 billion years. From impact craters to the dark plains of maria left behind by volcanic eruptions, the scars are all that remain to tell the tale of what happened to the moon. But they only hint at the processes that once acted—and act today—to shape the surface.

To get more insight into those processes, Meg Rosenburg and her colleagues at the California Institute of Technology, Pasadena, Calif. put together the first comprehensive set of maps revealing the slopes and roughness of the moon's surface. These maps are based on detailed data collected by the Lunar Orbiter Laser Altimeter (LOLA) on NASA's Lunar Reconnaissance Orbiter. LOLA and LRO were built at NASA's Goddard Space Flight Center in Greenbelt, Md.

Like wrinkles on skin, the roughness of craters and other features on the moon's surface can reveal their age. "The key is to look at the roughness at both long and short scales," says Rosenburg, who is the first author on the paper describing the results, published in the Journal of Geophysical Research earlier this year.

The roughness depends on the subtle ups and downs of the landscape, a quality that the researchers get at by measuring the slope at locations all over the surface. To put together a complete picture, the researchers looked at roughness at a range of different scales—the distances between two points—from 17 meters (about 56 feet) to as much as 2.7 kilometers (about 1.6 miles).

"Old and young craters have different roughness properties—they are rougher on some scales and smoother on others," says Rosenburg. That's because the older craters have been pummeled for eons by meteorites that pit and mar the site of the original impact, changing the original shape of the crater.

"Because this softening of the terrain hasn't happened at the new impact sites, the youngest craters immediately stand out," says NASA Goddard's Gregory Neumann, a co-investigator on LOLA.

"It is remarkable that the moon exhibits a great range of topographic character: on the extremes, surfaces roughened by the accumulation of craters over billions of years can be near regions smoothed and resurfaced by more recent mare volcanism," says Oded Aharonson, Rosenburg's advisor at the California Institute of Technology.

By looking at where and how the roughness changes, the researchers can get important clues about the processes that shaped the moon. A roughness map of the material surrounding Orientale basin, for example, reveals subtle differences in the ejecta, or debris, that was thrown out when the crater was formed by a giant object slamming into the moon.

That information can be combined with a contour map that shows where the high and low points are. "By looking at both together, we can say that one part of Orientale is not just higher or lower, it's also differently rough," Rosenburg says. "That gives us some clues about the impact process that launched the ejecta and also about the surface processes that later acted to modify it."

Likewise, the smooth plains of maria, which were created by volcanic activity, have a different roughness "signature" from the moon's highlands, reflecting the vastly different origins of the two terrains. Maria is Latin for "seas," and they got that name from early astronomers who mistook them for actual seas.

Just as on the moon, the same approach can be used to study surface processes on other bodies as well, Rosenburg says. "The processes at work are different on Mars than they are on an asteroid, but they each leave a signature in the topography for us to interpret. By studying roughness at different scales, we can begin to understand how our nearest neighbors came to look the way they do."

For more information visit http://www.nasa.gov/mission_pages/LRO/news/moon-wrinkles.html

Humanity+ @ Parsons recap: How to Live Forever review

This past weekend at the Humanity+ @ Parsons conference in NYC I had a chance to attend the debut screening of Mark Wexler’s new documentary, How to Live Forever. The film chronicles Wexler’s struggle to come to grips with his mother’s recent death and his ensuing existential crisis. To help cope with his newfound dread, Wexler ventures down a number of paths that might help him achieve a longer life. To this end, he interviews centenarians, gerontologists, health and fitness gurus, anti-aging hucksters, and anyone else with an opinion on how to extend life spans.

Of interest to the transhumanist and radical life extension communities, Wexler talks to Aubrey de Grey, Ray Kurzweil, and Tanya Jones of Alcor. But in addition to this he is lectured on hormone therapy by Suzanne Summers, takes a stab at caloric restriction, and visits with elderly Okinawans in Japan. Importantly, he explores and treats each issue with a certain seriousness—tongue just so slightly in cheek—giving each person or approach its due consideration. And by doing so, he brings the viewer into each world in an entertaining way and and then let’s them make their own minds on the efficacy of each approach.

That said, the central thrust of the documentary is rather weak; Wexler’s struggle is clearly contrived, uninteresting and underdeveloped. Thankfully it’s the characters and insights into aging that give this film its spark. Every segment, location and person that’s explored by Wexler is a little gem that offers insights into both life extension practices and novel approaches to living a healthy life. Wexler offers some wonderful food for thought by juxtaposing a caloric restriction advocate with a glutenous food critic, by visiting a nursing home in which robots are used to comfort the elderly, and by highlighting the fact that the world’s oldest woman on record smoked, drank and lived alone until her dying day.

In the end, the film offers no real solutions. Its life-affirming insights, many of which are provided by Wexler’s best friend, are pedestrian and unsatisfying. The final shot of the documentary shows Wexler sifting through his dead mother’s paintings, as if to suggest that she lives on through her work. But as Woody Allen once coyly noted, the key to achieving true immortality is by not dying in the first place.

How to Live Forever is a wonderful introduction to the sub-cultures that are a part of life extension, but it skirts past some of the deeper philosophical and ethical issues that are integral part of the larger discussion. The result is a quaint but highly enjoyable film. Those looking for something more analytical, profound or scientific, however, will need to look elsewhere.


Ed Boyden on optogenetics and neural prosthetics [TED]

Neuroscientist Ed Boyden shows how, by inserting genes for light-sensitive proteins into brain cells, he can selectively activate or de-activate specific neurons with fiber-optic implants. With this unprecedented level of control, he's managed to cure mice of analogs of PTSD and certain forms of blindness. And on the horizon: neural prosthetics.


Humanity+ @ Parsons recap: Posthumanism and posthumanism

I knew this would happen eventually, and it finally did at the recently concluded Humanity+ @ Parsons conference in NYC: mass confusion over the term "posthumanism."

You see, there are actually three legitimate but subtly different definitions of the term. And at the Parsons conference, an event that brought designers and transhumanists together, this created an interesting problem that resulted in consistent misinterpretation and misunderstanding. Not to mention a wide differing of opinion.

For most transhumanists, posthumanism is the general idea that we should strive to become posthuman, namely human beings who have been augmented and modified to such a degree that they can no longer be classified as such. A posthuman could be a hyper-genetically modified person, a cyborg, or even a completely non-corporeal uploaded consciousness.

The roots of transhumanist thinking come from the Enlightenment era and is very much informed by secular Humanism. A general premise that drives the quest for a posthuman condition is that steady and significant progress is attainable through the application of science and reason and that we ought to take a human-centric approach to our endeavors (i.e. "If we don't play God, who will?"). And it's not enough to work towards social, political and institutional reform, argue the transhumanists, we should also work to modify and improve the human mind and body itself.

But to many in the design community and European academia (excluding Nick Bostrom's crew at Oxford), the term has its roots in postmodernist thinking. Its focus is more conceptual than practical, more external than internal. Also known as philosophical posthumanism, it is an area of inqiry that is concerned with the blurring lines between the human body and its environment and how our external tools have become extensions of our selves. Posthumanists in this context are interested in exosomatic possibilities, such as extended selves and remote presence. They tend to argue that the skin barrier is an increasingly poor dividing line for determining where the human begins and ends. For more on this approach, I recommend The Posthuman Condition: Consciousness beyond the Brain by Robert Pepperell (2003). And be sure to read my review.

In addition to this, there is an ancillary school of thought which suggests that posthumanism implies post-Humanism (as in "after Humanism"). This is the suggestion that humans have no inherent rights to destroy nature or ethically set themselves above it. Human knowledge is also reduced to a less controlling position, which tends to be seen as the defining aspect of the world. These posthumanists admit limitations and fallibility of human intelligence, even though they do not suggest abandoning the rational tradition of humanism.

While I don't necessarily agree with this line of thinking, I do find the idea of human primacy a bit outdated in consideration of human enhancement, the presence of nonhuman animal persons, and the potential for artificially intelligence persons. But I don't agree that Humanism implies human domination over nature or an indifference to it.

At any rate, these are all very different approaches to posthumanism. Transhumanist posthumans are concerned with the internal world as they look to modify minds and bodies, often in relation to a complexifying and changing environment. Academic/philosophical posthumanists, on the other hand, are interested in identity and interaction – and they're certainly not too keen on the human-redesign front.

Transhumanists definitely faced some criticism from these folks at the Parson's conference. This differing of opinion and perspective resulted in some interesting, provocative and at some times heated moments. But it was all good as it provided some needed passion and contradiction into an otherwise consensual and agreeable gathering of minds and ideas.


Humanity+ @ Parsons recap: Beyond enhancement

Just got back from New York City where I attended the Humanity+ @ Parsons conference on May 14th and 15th. I always have a great time at these events, and this conference was no exception.

I'll be writing about the conference over the coming days and weeks, but I will say that it was interesting to see all the emphasis paid not to enhancement per se, but to alternative forms of human re-design and modification. Kinda makes sense if you think about it: it was a design-meets-transhumanism conference after all. But that said, I'm left wondering if it's part of a broader trend.

Transhumanists, it would seem, are not as purely fixated on augmentation as they used to be; it’s becoming more than just about being smarter, faster, or stronger. It’s also about acquiring novel capacities and being able to experience different things.

One thing I did observe, however, was that it was the transhumanists and not the designers who emphasized these points. I am surprised at how little consideration designers, architects and artists still give to the idea of human re-engineering. They're still largely fixated on externalities—things interface design, user experience, and environmental factors.

Now, there's nothing necessarily wrong with these things, but we need to also consider making meaningful alterations to the human body and mind as well. As I said during my talk on designer psychologies, it's time to start changing our minds and bodies to suit our environment and technologies rather than the other way around.

Fundamentally, a lot of this reluctance (or just sheer ignorance) has to do with the design community's adoption of an academic posthumanism that's rooted in postmodernist thinking (I will elaborate on this in a future post). This is contrasted with the transhumanist take on posthumanism which is driven by secular Humanist and Enlightenment ideals.

So, as noted, a number of transhumanists addressed the issue of human modification and re-design outside the context of mere enhancement.

Artificial intelligence theorist Ben Goertzel argued that, as we work to create AGI (artificial general intelligence), we'll have to create minds that can interpret and navigate through specific modal environments. Goertzel was addressing synthetic minds, but his point could be applied to humans as well. It made me wonder if we will someday be able to significantly modify human experience as it relates to environmental context.

Neuroscientist Anders Sandberg talked about the advent of novel capacities (such as new senses) that have no objective or easily distinguishable purpose. He gave the example of Todd Huffman's magnetic fingers which allow him to sense magnetic fields. Sandberg likened this to the body modification community. Modification can be done strictly for the sake of it, or just for personal experimentation. Sometimes it’s worth trying something weird or different just to see what happens; there isn't necessarily a problem to be solved. And at the very least it provides a fascinating outlet for human creativity and expression.

Similarly, bio-artist Adam Zaretsky made the claim that we should be more adventurous and imaginative when it comes to augmentation. While his ethics were at times suspicious (he seemed to believe that we can modify and hybridize nonhuman animals indiscriminately), his argument that we should think of biology as both our medium and canvas struck a few chords with conference attendees. Zaretsky's flesh fetish and resultant shock art showed that the potential for out-of-the-box modifications is significant and bizarre, but that it can only be explored given more daring (and an apparent love of icky things). He put it aptly when he said, "Humanity is nature in drag."

Bioethicist James Hughes had a unique take on things with his talk on building resilient minds. While I would agree that this could be classified as a kind of enhancement, the types of cognitive changes that he talked about were fairly fungible and context specific. It seemed more alt-transhumanism to me when compared to traditional discussions about increased memories, enhanced intelligence, and so on. Perhaps Hughes's most interesting suggestion was that we should be able to alter our brain state to match our situation or predicament; we would essentially be changing our natures on the fly in order to cope and adapt. Very post 9/11 transhumanism.

And as for my talk on designer psychologies, I basically argued in favour of creating alternative minds. By using autism as an example, I demonstrated that there is tremendous value and potential through increased neurodiversity, and that we, as neurotypicals, need to be careful about labeling these different kinds of thinking as being pathological. While I agree that some conditions are worthy of such distinctions, we need to be open minded to the possibility that alternative psychologies have an intrinsic value that can yield novel experiences and, as a result, create entirely new expressions, insights and experience (I'll publish my entire talk a bit later).

Now, as the transhumanist diehards are inclined to remind me, much of this isn’t really anything new. Transhumanists have been talking about body modification, alternative minds and novel capacities since day one. But it was nice to see such consensus at the same conference—a strong indication that these ideas are gaining currency and becoming a larger part of the conversation. It’s good to see more lateral thinking when it comes to considering new capacities and the motives behind our desires to reshape the human condition.


Futurism of Mario Carli

Gerardo Dottori, Un italiano di Mussolini (aeroritratto di Mario Carli) (1931)

Mario Carli e Fiume nel 150° dell’Italia Unita
Foyer del Teatro Comunale
May 23 – 28, 2011

DISCUSSION

Mario Carli, futurista legionario sanseverese, con D’Annunzio a Fiume

May 27, 2011 | 6:30pm
Sala “Nino Casiglio” della Biblioteca comunale, San Severo

- Moderated by Alessandro Marco Fusco dell’Ades, Amici e Discendenti degli Esuli Istriani, Fiumani e Dalmati
- Panelists include Marino MCICH and Gianclaudio de Angelini from the Archivio Museo Storico di Fiume in Rome.
- Presentation of Gabriele Marconi’s book “Le Stelle Danzanti”

Wiki – Mario Carli
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Nanoelectronics with germanium

Germanium was the basic material of first-generation transistors in the late 1940s and early 1950s before it was replaced by silicon (the first silicon transistor was produced by Texas Instruments in 1954). Using germanium instead of silicon as transistor material would enable faster chips containing smaller transistors because higher switching speeds than in silicon could be achieved using germanium. A novel fabrication route demonstrated by a research team in Australia, using a combination of scanning tunneling microscope (STM) lithography and high-quality crystal growth, opens up an entire new area where quantum behavior of highly confined electrons in germanium can be studied for the first time.