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Dec 1, 2012

Response to Plaut and McClelland in the Phys.org story

Posted by in categories: information science, neuroscience, philosophy, robotics/AI

A response to McClelland and Plaut’s
comments in the Phys.org story:

Do brain cells need to be connected to have meaning?

Asim Roy
Department of Information Systems
Arizona State University
Tempe, Arizona, USA
www.lifeboat.com/ex/bios.asim.roy

Article reference:

Roy A. (2012). “A theory of the brain: localist representation is used widely in the brain.” Front. Psychology 3:551. doi: 10.3389/fpsyg.2012.00551

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Nov 24, 2012

Can anyone Tell me by what Percentage CERN Plans to still Increase its…

Posted by in categories: engineering, existential risks, particle physics

… overall luminosity during the remaining weeks of operation before the 2-year close-down for upgrading?

Thank you very much.

Nov 23, 2012

Standing on the Shoulders of Giants: A Galilean Base

Posted by in categories: engineering, habitats, space

In a previous post I explored the feasibility of an industrial base on planet Mercury — an option which on first glance had seemed implausible but on getting down to the detail could be considered quite reasonable. Here I go the other direction — outward to the first of the gas giants — and the Galilean moons of Jupiter.

From a scientific point of view it makes a lot of sense to set up a base in this region as it provides the nearest possible base to home that could start to explore the dynamics and weather systems of gaseous planets — which are quite common in our Universe — and how such planets impact on their moons — as potential locations for off-earth colonies and industrial bases. It bears consideration that only two other moons in our outer solar system are of requisite size to have a gravitational field similar or greater to that of our Moon — namely Saturn’s Titan and Neptune’s Triton — so the Galilean moons demand attention.

The first difficulty to consider is the intense radiation from Jupiter, which is far stronger than the Earth’s Van Allen radiation belts. Although proper shielding normally protects living organisms and electronic instrumentation, that from Jupiter is whipped up from magnetic fields 20,000 stronger than Earth’s, so shielding would become difficult. It has been considered that such radiation would be the greatest threat to any craft closing within 300,000 km of the planet. At 420,000 km from Jupiter, Io is the closest of the Galilean satellites. With over 400 active volcanoes, from which plumes of sulphur and sulphur dioxide regularly rise as high as 400 km above its surface, it is considered the most geologically active object in the solar system. The activity could be viewed as a source of heat/energy.

Unlike most satellites, it is composed of silicate rock with a molten iron or iron sulphide core, and despite extensive mountain ranges, the majority of its surface is characterized by extensive plains coated with sulphur and sulphur dioxide frost. One can perhaps disregard its extremely thin sulphur dioxide atmosphere as an inconvenience, though is in too close proximity to Jupiter and its extensive magnetosphere even for occasional mining expeditions from the other moons. In this regard one would have to rule out Io and any resources there completely from consideration for such as base. Onto the other options…

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Nov 20, 2012

Google’s 100,000 Stars & the Paradigmatic Disruption of Large-Scale Innovation Revisited

Posted by in categories: cosmology, general relativity, human trajectories, information science, physics, scientific freedom, space


The 100,000 Stars Google Chrome Galactic Visualization Experiment Thingy

So, Google has these things called Chrome Experiments, and they like, you know, do that. 100,000 Stars, their latest, simulates our immediate galactic zip code and provides detailed information on many of the massive nuclear fireballs nearby.


Zoom in & out of interactive galaxy, state, city, neighborhood, so to speak.

It’s humbling, beautiful, and awesome. Now, is 100, 000 Stars perfectly accurate and practical for anything other than having something pretty to look at and explore and educate and remind us of the enormity of our quaint little galaxy among the likely 170 billion others? Well, no — not really. But if you really feel the need to evaluate it that way, you are a unimaginative jerk and your life is without joy and awe and hope and wonder and you probably have irritable bowel syndrome. Deservedly.

The New Innovation Paradigm Kinda Revisited
Just about exactly one year ago technosnark cudgel Anthrobotic.com was rapping about the changing innovation paradigm in large-scale technological development. There’s chastisement for Neil deGrasse Tyson and others who, paraphrasically (totally a word), have declared that private companies won’t take big risks, won’t do bold stuff, won’t push the boundaries of scientific exploration because of bottom lines and restrictive boards and such. But new business entities like Google, SpaceX, Virgin Galactic, & Planetary Resources are kind of steadily proving this wrong.

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Nov 19, 2012

The Kline Directive: Technological Feasibility (2f)

Posted by in categories: general relativity, philosophy, physics, policy, scientific freedom, space

To achieve interstellar travel, the Kline Directive instructs us to be bold, to explore what others have not, to seek what others will not, to change what others dare not. To extend the boundaries of our knowledge, to advocate new methods, techniques and research, to sponsor change not status quo, on 5 fronts, Legal Standing, Safety Awareness, Economic Viability, Theoretical-Empirical Relationships, and Technological Feasibility.

There is one last mistake in physics that needs to be addressed. This is the baking bread model. To quote from the NASA page,

“The expanding raisin bread model at left illustrates why this proportion law is important. If every portion of the bread expands by the same amount in a given interval of time, then the raisins would recede from each other with exactly a Hubble type expansion law. In a given time interval, a nearby raisin would move relatively little, but a distant raisin would move relatively farther — and the same behavior would be seen from any raisin in the loaf. In other words, the Hubble law is just what one would expect for a homogeneous expanding universe, as predicted by the Big Bang theory. Moreover no raisin, or galaxy, occupies a special place in this universe — unless you get too close to the edge of the loaf where the analogy breaks down.”

Notice the two qualifications the obvious one is “unless you get too close to the edge of the loaf where the analogy breaks down”. The second is that this description is only correct from the perspective of velocity. But there is a problem with this.

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Nov 18, 2012

The Kline Directive: Technological Feasibility (2e)

Posted by in categories: cosmology, defense, engineering, general relativity, particle physics, philosophy, physics, scientific freedom, space

To achieve interstellar travel, the Kline Directive instructs us to be bold, to explore what others have not, to seek what others will not, to change what others dare not. To extend the boundaries of our knowledge, to advocate new methods, techniques and research, to sponsor change not status quo, on 5 fronts, Legal Standing, Safety Awareness, Economic Viability, Theoretical-Empirical Relationships, and Technological Feasibility.

In this post I explain two more mistakes in physics. The first is 55 years old, and should have been caught long ago.

Bondi, in his 1957 paper “Negative mass in General Relativity”, had suggested that mass could be negative and there are surprising results from this possibility. I quote,

“… the positive body will attract the negative one (since all bodies are attracted by it), while the negative body will repel the positive body (since all bodies are repelled by it). If the motion is confined to the line of centers, then one would expect the pair to move off with uniform acceleration …”

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Nov 18, 2012

The Kline Directive: Technological Feasibility (2d)

Posted by in categories: cosmology, defense, education, engineering, general relativity, particle physics, philosophy, physics, policy, space

To achieve interstellar travel, the Kline Directive instructs us to be bold, to explore what others have not, to seek what others will not, to change what others dare not. To extend the boundaries of our knowledge, to advocate new methods, techniques and research, to sponsor change not status quo, on 5 fronts, Legal Standing, Safety Awareness, Economic Viability, Theoretical-Empirical Relationships, and Technological Feasibility.

In this post on technological feasibility, I point to some more mistakes in physics, so that we are aware of the type of mistakes we are making. This I hope will facilitate the changes required of our understanding of the physics of the Universe and thereby speed up the discovery of new physics required for interstellar travel.

The scientific community recognizes two alternative models for force. Note I use the term recognizes because that is how science progresses. This is necessarily different from the concept how Nature operates or Nature’s method of operation. Nature has a method of operating that is consistent with all Nature’s phenomena, known and unknown.

If we are willing to admit, that we don’t know all of Nature’s phenomena — our knowledge is incomplete — then it is only logical that our recognition of Nature’s method of operation is always incomplete. Therefore, scientists propose theories on Nature’s methods, and as science progresses we revise our theories. This leads to the inference that our theories can never be the exact presentation of Nature’s methods, because our knowledge is incomplete. However, we can come close but we can never be sure ‘we got it’.

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Nov 18, 2012

Visualizing the World and its Dangers

Posted by in categories: existential risks, lifeboat, particle physics, rants

I want to start a project of better visualization of the problems we face. We ask children to visualize in school but we all could use it. In the common economic discussions trillion dollar budgets and a million dollars are discussed interchangeability shows lack of visualization. The West is heading for currency collapse but austerity measures in Greece just add to unemployment not debt reduction, why is this so hard to visualize?

One clear way to shore up the US economy is to end foreign bases and end the embargo of Cuba. Boycotts hurt both sides, the Cuban economy is smaller so it hurts them more. The US economy is shaky so at some point embargo’s may be the straw that makes us fall apart.

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Nov 17, 2012

Is Failure to Prepare Our Silent Existential Event?

Posted by in categories: education, existential risks, lifeboat, sustainability

Note: The below is exclusively about the United States of America, yet the theme is international.

Each time an extreme weather event takes place humanity is reminded again that basic preparation for an off-grid experience did not take place across large swaths of an affected population. Ironically, it does not begin to take place, publicly and en masse, after the event.

Saving humanity will have a lot to do with teaching a kid to build a fire, in the near term. More esoteric “preservers” and “shields” have their place, but “Scout” knowledge can produce immediate quantitative and qualitative improvements in humanity’s survival capabilities, fast.

After weather-induced disasters, our tendency is toward construction of physical things – better towers, more resilient dams, improved architecture. Seldom do we do anything to improve ourselves. Thousands remain helpless and dependent in the face of the Hurricane “Sandy” aftermath.

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Nov 13, 2012

Smithsonian National Air and Space Museum: No Lifeboats Please

Posted by in categories: defense, education, engineering, existential risks, finance, military, space

It was on a long-haul flight many months ago that I recalled a visit to the National Air and Space Museum [1] to a fellow passenger whom I struck up conversation with. Asking if I could recommend somewhere to visit in Washington DC, I recounted how I had spent an entire day amazing at the collection of historic aircraft and spacecraft on my only visit to that city fifteen years or so previous as a young adult — and as always a kid at heart.

Seeing the sheer scale of the F-1 engine for the Saturn 5 rocket first hand, stepping inside an Apollo command module identical to those used during the Apollo program, not to mention seeing full life-size replicas of the Lunar Roving Vehicle, an Apollo Lunar Module and for some reason what seemed most surreal to me… the Viking 1 Lander. This was enchantment.

However, for all the amazement that such a museum can provide, it is also a saddening reminder that what once was the forefront of human ambition and endeavor has now been largely resigned to history. NASA budgets are cut annually [2] whilst military expenditure takes ever more precedence. A planned six percent budget decrease in 2013 is the equivalent savings to three hours of the Iraq and Afghanistan Wars. Instead of reaching to explore outer-space we are encouraged to get excited about the equivalent billions [3] invested on science exploring the subatomic inner-space world. Meanwhile, we tend to forget that the ambitions of space exploration are not just to satisfy some wide-eyed childhood yearning to explore, but the serious and sobering prospect of needing to ensure that we as a species can eventually colonize to other worlds and ensure we are not counting down the days to our extinction on an ever-more-precarious planetary solitude.

In the face of such indifference, such concepts of lifeboats have become marginalized to what is perceived to be a realm solely for loons and dreamers, or ‘space cadets’ as we used to call them back in the days of school. The trillion dollar question really is what it takes to redirect all that military investment into science & exploration instead. It is down to credibility. Governments shy away from investing public funds when there is a lack of credibility.

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