Computer memory to last a billion years

lifevsbitIn an attempt to address the problem of a digital dark age engineers at Berkeley have developed a technique called Nanoscale Reversible Mass Transport for Archival Memory that is intended to combine high bit-density and deep-time survival:

We have developed a new mechanism for digital memory storage with the potential to store data with both long lifetime and high density. Our memory device consists of a crystalline iron nanoparticle enclosed in a multiwalled carbon nanotube.  The nanotube can be reversibly moved through the nanotube by applying a low voltage, “writing” the device to a binary state represented by the position of the nanoparticle. The state of the device can then be subsequently read by a simple resistance measurement.

The abstract of the paper claims thermodynamic stability in excess of one billion years with data density of 1012 bits/in2.

[via Next Big Future][graph courtesy Zettl Research Group, Lawrence Berkeley National Laboratory and University of California at Berkeley]

Neuroscience soldiers

modern soldiersNothing says “futuristic” quite like new tools and techniques of warfare, which probably says something rather sad about our socio-cultural mindsets. Nonetheless, there’s no ignoring the fact that technological advances are changing the state (and nature) of the battlefield more quickly than ever before, meaning that military organisations the world over are looking for any possible way to get a jump on the other side.

Enter the US National Academies of Science, who were hired by the US military to assess the neuroscientific investment paths that would provide the best bang for their buck. It’s not about bigger guns and better armour any more, though; the soldiers themselves are the latest subject for improvement, be it by careful recruitment selection or wetware upgrades, or both.

Genetic testing might also enable recruitment officers to determine which soldiers are best for specialist jobs. For example, by combining psychological testing with genetic tests for levels of brain chemicals, a clearer picture of a soldier’s competencies might shine through. “We might say that given this person’s high levels of brain serotonin, they’re going to be calmer under pressure, so they might make a good sniper,” says Paul Zak of Claremont Graduate University in California, who was on the NAS panel. Alternatively, someone with low dopamine might be less likely to take risks, he says, and therefore be better suited as a commanding officer in a civilian area.

[…]

Zak emphasises that the panel was not asked how to turn soldiers into better “killing machines”, although “the whole purpose of maximising and sustaining battlefield capacity is to gain superiority over opponents”, admits Floyd Bloom of the Scripps Research Institute in La Jolla, California, who chaired the panel.

That’s not to say someone won’t try it, though. Zak’s own work focuses on the role of the hormone oxytocin in trust and empathy. If drugs were developed to block oxytocin, the effect might be to reduce a soldier’s ability to empathise with enemy combatants or civilians.

“There are lots of stories of soldiers who refuse to shoot other soldiers,” says Zak. “If you could get rid of that empathy response you might create a soldier that’s more prepared to engage in battle and risk their life.”

Um… OK. The practical benefits are obvious enough, I suppose, and if you can justify war itself I dare say you’ll not struggle to justify chemically adjusting your soldiers to be less bothered about the risk of bleeding their life out on some sand dune somewhere.

But research into easy ways to suppress empathy has worrying implications beyond the military sphere. After all, haven’t we just seen first hand what happens when people with a low empathy quotient are given control of the financial instruments that span the globe? Sure, they’re efficient and ruthless – but that’s a double-edged sword, right there. [via Scumlord Warren Ellis; image by Soldiers Media Center]

To be honest, I’d blame our erratic sense of empathy for most of the problems the world suffers currently… and while I suppose that research into oxytocin levels would inevitably throw up ways to boost empathy, that’s never going to be as financially or militarily appealing as the opposite. And of course, one must remember that the street always finds its own use for things…

High-speed photography

I’ve been a sucker for this stuff ever since seeing some grainy black and white broadcast on the Open University as a kid… remember the one where they’d photograph the droplet of paint hitting the rest of the liquid (which seems to be the only eighties TV ad that hasn’t made it onto YouTube yet)? Well, high-speed photography has come a fair way since the advent of silicon ubiquity, and as such this will be a pure eye-candy post.

There’s a few seconds of advert beforehand, but then you can watch this little hummingbird doing its hover-and-guzzle routine; there’s more details about the process (and videos, of course) over at Wired.

GPS for ants (and maybe other animals, too)

Giant bulldog ant; GPS available as optional upgradeLike many naturalists, I’ve always been fairly fascinated by ants – their industrious sense of purpose, their ability to collaborate as a single metaorganism, and so on. Greater minds than myself have often wondered how they navigate over wide areas so effectively, and now an answer has been unearthed: ant antennae incorporate magnetic minerals that may form part of an insectoid GPS system. [image by Arthur Chapman]

“The incorporation of minerals probably starts as soon as ants start getting in touch with soil,” she added, explaining to Discovery News that her team found ultra fine-grained crystals of magnetic magnetite, maghemite, hematite, goethite, and aluminum silicates in ant antennae. These particles could make a “biological compass needle” that drives ant GPS.

[…]

Our planet is magnetized, likely due to rotational forces of liquid iron in Earth’s core. Although the resulting magnetic field is one-twenty thousandth as strong as a refrigerator magnet, ants appear to “perceive the geomagnetic information through a magnetic sensor (the dirt particles), transduce it in a signal to the nervous system and then to the brain,” she said.

Not all ants may use this particular system. Desert ants, for example, appear to have evolved special eyes that detect skylight polarization, which they then use to find their way around their sandy habitat. Magnetic particles, however, have been detected in many fish, birds, butterflies, flies, bees, bats, mole rats, newts, sea turtles and spiny lobsters, suggesting these animals find their way like the Brazilian ants do.

Ain’t nature wonderful?

I wonder if perhaps we humans have  a similar ability lying dormant in our bodies, shoved aside by evolutionary pressures as unnecessary since we stopped being roaming bands of primates and began to settle in stable locations. Perhaps it could be reawakened, or simply installed from scratch by some deft ribofunk biohacking? Imagine a post-fuel future where we have an entire and recently re-greened planet to roam on foot – how wonderful to set out with no map besides the tiny magnets buried in your brain!

Atomic fireballs: the man with the pics

tumbler_snapper_bombThought ya’ll might get a kick of the old sensawunda out of these “rapatronic” high-speed photos of nuclear bombs exploding:

The exposures were often as short as 10 nanoseconds, and each Rapatronic camera would take exactly one photograph.

A bank of four to ten or more such cameras were arranged at tests to record different moments of early fireball growth.

They provide technical information about the device’s disassembly.

Some really awesome images captured here. More on rapatronics here.

[via Sachs Report][image from the page]