Filed under: General Musings, Government, movies, Nuclear weapons, Predictions, tech, Violence
I’ve written previously about screws-ups with control of nuclear weapons and components thereof. And the recent dismissal of Air Force Chief of Staff Gen. Michael Moseley and Air Force Secretary Michael Wynne also caught my attention, with the explanation that this was due to a failure to properly safeguard the handling of nuclear materials. Now it seems that there was more behind that dismissal than was initially indicated:
US N-weapons parts missing, Pentagon says
The US military cannot locate hundreds of sensitive nuclear missile components, according to several government officials familiar with a Pentagon report on nuclear safeguards.
Robert Gates, US defence secretary, recently fired both the US Air Force chief of staff and air force secretary after an investigation blamed the air force for the inadvertent shipment of nuclear missile nose cones to Taiwan.
According to previously undisclosed details obtained by the FT, the investigation also concluded that the air force could not account for many sensitive components previously included in its nuclear inventory.
One official said the number of missing components was more than 1,000.
You know the ‘warehouse scene’ at the end of Raiders of the Lost Ark? That’s how I always envision any government-related storage or supply system. And everything I’ve ever heard from friends who have served in the military has done nothing to change my opinion – well, for the better, anyway.
So it comes as little surprise that substantial amounts of “sensitive nuclear missile components” have gone missing. Not that this is particularly comforting, mind. As I’ve said before, I’m one of the people who grew up fully expecting a nuclear war of some variety sometime during my life. And in spite of the ‘detargetting’ bullshit of the ’90s, I still do. That’s bad enough. But it would *really suck* if such a thing were made possible because of the lax clerical policies of our own government.
Jim Downey
Cross posted to UTI.
Filed under: ISS, NASA, Predictions, Preparedness, Science, Space, Survival, tech
Happily, Shuttle Discovery made it home safe and sound on Saturday, as scheduled, in spite of misgivings I expressed in my last post and in comments. But losing pieces of the shuttle (or any space vehicle) is always a concern, as discussed extensively by James Oberg in this item for MSNBC:
Why NASA watches out for true UFOs
Astronauts don’t keep mum about potentially life-threatening objectsHOUSTON – Friday’s brief orbital anxiety about threats from an unidentified object seen out the window of space shuttle Discovery underscore why NASA has always been interested in what can justifiably be called UFOs.
* * *
The reason is life-and-death. Since Mercury days, NASA engineers have realized that visual sightings of anomalies can sometimes provide clues to the functioning — or malfunctioning — of the spaceships that contain their precious astronauts. White dots outside the window could be spray from a propellant leak, or ice particles, flaking insulation, worked-loose fasteners (as in this latest case) or inadvertently released tools or components.
Whatever the objects might be, they pose a threat of coming back in contact with the spacecraft, potentially causing damage to delicate instruments, thermal tiles, windows or solar cells, or fouling rotating or hinged mechanisms. So Mission Control needs to find out about them right away in order to determine that they are not hazardous.
Oberg knows his shit, so take a few moments and read the whole thing.
As I’ve mentioned previously, we know that space travel is dangerous, and there is very little doubt that we will see more deaths. But there’s no reason not to learn from our mistakes, and to make things safer as we can.
Jim Downey
Filed under: Firefly, Joss Whedon, movies, NASA, Science Fiction, Serenity, Space, tech
WASHINGTON (AFP) – Astronauts on the space shuttle Discovery spotted an unidentified object floating behind the craft as well as a bump on the shuttle rudder on Friday but neither was cause for concern, NASA said.
After carrying out routine testing the day before Discovery is due to land back on Earth on Saturday, “the crew indicated they had seen a 1-1.5-foot (30-45 centimeter) long rectangular object floating away from the shuttle from behind the rear portion of the right wing,” the US space agency said.
“Shortly afterwards, the crew described what they called a ‘bump’ on the left side trailing edge of Discovery’s rudder,” it said in a statement.
NASA experts back on Earth studied images and video of both the object and the bump but concluded that they posed no risk and Discovery was “ship-shape” for Saturday’s landing at the Kennedy Space Center in Cape Canaveral, Florida.
I don’t know about you, but offhand I would tend to think that seeing parts of my spaceship floating away unexpectedly would give me more than a little pause, particularly given the history of the Shuttle program.
Hope they get home safely.
Jim Downey
*go to the eighth section.
Most everyone is paying attention to one thing scheduled to fall through the sky today. That’s the Phoenix Mars Lander, and there’s good reason to do so: the lander is designed to come down softly near the north pole, and search the permafrost there for evidence that the planet was capable of supporting microbial life. The problem is that NASA has had a string of failures in achieving such a soft landing on Mars in recent years. From the AP:
The time it takes the Phoenix Mars Lander to streak through the atmosphere and set down on the dusty surface has been dubbed “the seven minutes of terror” for good reason. More than half of the world’s attempts to land on Mars have ended in failures.
“I’m a little nervous on the inside. I’m getting butterflies,” Peter Smith, principal investigator from the University of Arizona, Tucson, said on the eve of the landing. “We bet the whole farm on this safe landing and we can’t do our science without this safe landing.”
And yeah, I’m as interested in this as most people, since I support pretty much any kind of space exploration, whether it is robotic or manned, governmental or private.
But what I’m most interested in today is whether another “fall through the sky” project comes off as scheduled. That project is Le Grand Saut (The Big Leap). From a New York Times story yesterday:
He has spent two decades and nearly $20 million in a quest to fly to the upper reaches of the atmosphere with a helium balloon, just so he can jump back to earth again. Now, Michel Fournier says, he is ready at last.
* * *
He intends to climb into the pressurized gondola of the 650-foot balloon, which resembles a giant jellyfish, and make a two-hour journey to 130,000 feet. At that altitude, almost 25 miles up, Fournier will see both the blackness of space and the curvature of the earth.
Then he plans to step out of the capsule, wearing only a special space suit and a parachute, and plunge in a mere 15 minutes, experiencing weightlessness along the way.
If successful, Fournier will fall longer, farther and faster than anyone in history. Along the way, he can accomplish other firsts, by breaking the sound barrier and records that have stood for nearly 50 years.
The record mentioned there? A jump by Joseph Kittinger from over 102,000 feet that was part of Project Excelsior in 1960. I’ve known about that jump pretty much my entire life, and always thought that it would be a fantastic experience. It was one of the reasons why I decided that for a birthday a decade or so ago I was going to do a tandem jump from a perfectly good airplane from 12,000 feet, which included free-fall for over a mile. I didn’t have the time nor money to take up skydiving as a hobby, but I could do that jump. And it was a phenomenal experience that I have always cherished, adrenaline junkie that I am.
So, Fournier’s project? Yeah, I’d do it. No question. And while I will be keeping my fingers crossed for Phoenix (figuratively speaking – I’m not actually superstitious), my real attention will be on one man doing something completely insane.
Jim Downey
Filed under: Government, Heinlein, Predictions, Robert A. Heinlein, Science, Science Fiction, tech
Yeah, ol’ Robert would get a chuckle out of this news item:
Robotic suit could usher in super soldier era
Rex Jameson bikes and swims regularly, and plays tennis and skis when time allows. But the 5-foot-11, 180-pound software engineer is lucky if he presses 200 pounds — that is, until he steps into an “exoskeleton” of aluminum and electronics that multiplies his strength and endurance as many as 20 times.
* * *
Jameson — who works for robotics firm Sarcos Inc. in Salt Lake City, which is under contract with the U.S. Army — is helping assess the 150-pound suit’s viability for the soldiers of tomorrow. The suit works by sensing every movement the wearer makes and almost instantly amplifying it.
The Army believes soldiers may someday wear the suits in combat, but it’s focusing for now on applications such as loading cargo or repairing heavy equipment. Sarcos is developing the technology under a two-year contract worth up to $10 million, and the Army plans initial field tests next year.
Powered Armor, anyone?
Actually, we’re still some ways away from what Heinlein envisioned. In particular, a power source is problematic. But the necessary electronics are now in place, to the point where the suit mentioned above doesn’t require a huge amount of training to use – it’s fairly intuitive:
“It feels less agile than it is,” Jameson said. “Because of the way the control laws work, it’s ever so slightly slower than I am. And because we are so in tune with our bodies’ responses, this tiny delay initially made me tense.”
Now, he’s used to it.
“I can regain my balance naturally after stumbling — something I discovered completely by accident.”
Learning was easy, he said.
“It takes no special training, beyond learning to relax and trust the robot,” he said.
Wow.
Jim Downey
(Cross posted to UTI.)
I’ll turn 50 in a couple of months. It’s a little weird to realize that barely more time than that is required to go back from my date of birth to the first powered flight of the Wright brothers.
But, via TDG, this delightful bit from Scientific American:
100 Years Ago in Scientific American:
The Wright Brothers’ First Flight
An article from the May 1908 issue of Scientific American
Complete with the text and cover from that issue.
Wild.
Jim Downey
Filed under: Book Conservation, General Musings, Health, Predictions, Science, Science Fiction, Society, Survival, tech
As a book conservator, one of the things I deal with most frequently is problems caused by the embrittlement of paper and other cellulose materials. This embrittlement is, generally, caused by residual acid content from the manufacturing of those materials. For a period of about 130 – 140 years (basically from the start of the American Civil War until just before the turn of the 21st century), paper was most widely manufactured using an acid bath to wash away non-cellulose fibers, which left that residual acid content slowly weakening the paper. This is a process known among conservators and librarians as “slow fire“, since it is essentially an oxidation process akin to the combustion of fire, but on a longer time scale. Perhaps surprisingly, this mechanism wasn’t understood at all until about the time of my birth some fifty years ago, when research started to show what was actually happening to paper at this very basic level.
Now the majority of paper is made using an alternative process, primarily due to environmental needs (less pollution). It is a side benefit, but an important one, that this usually results in a much more stable and longer-lasting paper, one which doesn’t have that residual acid content causing problems. Because paper doesn’t have to become embrittled with age – I have lots of examples of paper made 500 years ago that looks as fresh and supple as paper made last week. The paper we’re most widely using now has a similar stability.
* * * * * * *
Now, it seems, scientists studying evolution and extinction may have stumbled upon a similar stability issue with regards to humans, and it could portend a medical breakthrough which would save countless lives and extend others.
Writing for Seed Magazine this week, Peter Ward notes that of the five major mass extinction events in Earth’s history, one of them was undoubtedly due to a single chemical:
But now, together with Mark Roth of the Fred Hutchinson Cancer Research Center in Seattle, I believe we have found a possible biochemical scar, present within living animals, that links Earth’s greatest mass extinction to a single substance: hydrogen sulfide (H2S). Hydrogen sulfide is a relatively simple molecule that gives rotten eggs their distinctive foul odor and is quite toxic–in high concentrations a single breath can kill. And it looks like that is what happened: Hundreds of millions of years ago, hydrogen sulfide probably saturated our oceans and atmosphere, poisoning nearly every creature on Earth.
Yet some creatures, like our very distant ancestors, must have somehow survived this toxic environment. What Roth has discovered is that H2S, incredibly, also has the ability to preserve and save lives. In small doses the chemical puts many animals into a state of “suspended animation,” a useful adaptation that would have allowed creatures to, in essence, hibernate through the catastrophe of mass extinction. If this idea is correct, our understanding of the deep past could lead to a dramatic medical revolution very soon.
What kind of dramatic medical revolution? The Science Fiction dream of suspended animation, allowing people with an illness or injury to be “set aside” for decades until medical science comes up with a cure, or a way of putting their brain in a newly cloned body?
Nope. Something a lot simpler, and probably a lot more useful. This:
When we humans are cut or injured, our bodies naturally produce small quantities of hydrogen sulfide. In essence, the body may be trying to put itself into suspended animation to survive the injury, an instinct held over millions of years in our genes. Yet whenever one of us is dying, say from a heart attack, our first instinct is to give that person oxygen. The problem with this “life-saving” first response may be that the oxygenated red blood cells rush to the damaged cells and act like gasoline on a fire. Oxygen is one of the most chemically active substances on Earth, and though we need it to survive, it can ravage our bodies. The oxygen increases the reactions causing the heart attack in the first place; it tears up more cells and overwhelms the virtual suspended animation that the body-produced hydrogen sulfide created. Then it kills you.
Oxygen. From whence we get the term Oxidation. As in “burning” or “fire”. So, what to do? Here’s the concluding bit from the article:
Perhaps our first instinct in instances of a heart attack should be to cool the body and let hydrogen sulfide do its natural work. To save life, in other words, you may first have to effectively suspend it with hydrogen sulfide. This tactic may just be what got us so far in the first place.
There is no clear understanding yet of why our injured bodies are able to produce hydrogen sulfide or why H2S puts some mammals into suspended animation. But I believe that Roth has found our body’s own memory of the ancient events that nearly killed our distant ancestors. Some proto-mammals may have been exposed to H2S, and instead of dying, they were placed into a state of suspended animation that allowed them to survive until the initial hydrogen sulfide levels subsided and they were reanimated. Some lucky evolutionary accident ensured the mammals’ safety through a deep sleep, and that accident may still be dormant within us. That which allowed our ancestors to survive millions of years ago might also be a means of our survival now.
* * * * * * *
Like paper made 50 years ago, I am not as supple or fresh as when I was born. I too have experienced my own version of embrittlement. There is only so much my body can do to keep up with the effects of oxidation. There are plenty of commercial products out there touting their antioxidant effect, just as there are products I use to neutralize acid in paper, but none of these will return me to my youth, just as I cannot reverse the effects of embrittlement in paper.
But it seems that perhaps we have a new insight into some of the mechanisms at work. I don’t expect to live forever, but I certainly wouldn’t mind having better and more effective medical treatment for what time I have. As a conservator, my best hope is to preserve what suppleness there is still left in paper. I’d be willing to settle for the same thing, myself.
Jim Downey
Filed under: Arthur C. Clarke, Artificial Intelligence, Carl Sagan, Expert systems, Fermi's Paradox, Predictions, Science, Science Fiction, SETI, Space, tech
‘Babelfish’ to translate alien tongues could be built If we ever make contact with intelligent aliens, we should be able to build a universal translator to communicate with them, according to a linguist and anthropologist in the US.
Such a “babelfish”, which gets its name from the translating fish in Douglas Adams‘s book The Hitchhiker’s Guide to the Galaxy, would require a much more advanced understanding of language than we currently have. But a first step would be recognising that all languages must have a universal structure, according to Terrence Deacon of the University of California, Berkeley, US.
Color me dubious. Deacon’s notion, as presented at AbSciCon 2008, is basically that any language will be tied to descriptions of the physical universe in some way. As reported in the NewScientist article above, this would allow for some distant computer/software to do a machine translation.
Well, sure – keep it open-ended enough, and just about anything is possible if you go far enough in the future. Clarke’s maxim about technology and magic comes to mind.
But we have a lot of ground to cover, first. Are there technologically advanced civilizations beyond Earth? If so, where are they? Do they even perceive the universe the same way we do? If so, do they have something resembling language, whether it be spoken, written, farted, or spit? Or do they communicate by telepathy, electrical discharge, or some other means outside of our normal sensory perception? Do they experience time the same way we do?
We can’t even build a good algorithm for doing human language translations, with languages well understood and cultures which are compatible, among members of our own species. Anyone who has tried to use one will know what I am talking about. Let’s use the current real-world version of Babel Fish to translate that last sentence, into German, and then back into English. We start with:
Anyone who has tried to use one will know what I am talking about.
Which becomes:
Jedermann, das versucht hat, ein zu verwenden, weiß, über was ich spreche.
Which is pretty good, to my rusty memory of idiomatic German. Now, back into English:
Everyone, which tried to use knows, about which I speak.
You see the problem? And that’s using a standard translation software – which has undoubtedly been tweaked and adjusted time and time again. A commercial software program may give you a better result, but the fact remains that any business will not rely on said software – they’ll go to a human who is fluent in each language for a good translation. And that is with all the commercial forces at work to create a dependable, value-added translation software program. How the hell are we supposed to come up with something which will work with an alien ‘language’ with which we have no prior experience?
Sagan and all the other SF authors who have tackled this had it right: we’ll have to start with mathematics.
Jim Downey
