Slashdot Log In
Meteorite Causes Illness in Peru
Posted by
Zonk
on Tue Sep 18, 2007 01:05 PM
from the i've-read-a-book-about-this dept.
from the i've-read-a-book-about-this dept.
eldavojohn writes "A meteorite struck in Peru on Saturday leaving cinders, rock & water boiling out of the ground. Villagers nearby reported headaches & vomiting and attributed it to the event. From the article, 'Seven policemen who went to check on the reports also became ill and had to be given oxygen before being hospitalized, Lopez said. Rescue teams and experts were dispatched to the scene, where the meteorite left a 100-foot-wide (30-meter-wide) and 20-foot-deep (six-meter-deep) crater, said local official Marco Limache.' It's not yet clear whether this is from the meteorite, gas trapped underground that was released or a chemical reaction between the two."
Related Stories
[+]
Mysterious Peruvian Meteor Disease Solved 146 comments
Technician writes "The meteor that crashed in Peru caused a mystery illnesses. The cause of the illness has been found. The meteor was not toxic. The ground water it contacted contains arsenic. The resulting steam cloud is what caused the mystery illness.
"The meteorite created the gases when the object's hot surface met an underground water supply tainted with arsenic, the scientists said." There is a very good photo of the impact crater in the article. The rim of the crater is lined with people for a size comparison."
This discussion has been archived.
No new comments can be posted.
The Fine Print: The following comments are owned by whoever posted them. We are not responsible for them in any way.
Full
Abbreviated
Hidden
Loading... please wait.
Andromeda Strain!!! or not... (Score:5, Interesting)
Re:Andromeda Strain!!! or not... (Score:5, Insightful)
According to the article (coral cache [nyud.net]), the problem was a "strange odor" that caused the headaches and vomiting. Such an odor suggests a strong chemical of some sort that has been aerosolized near the point of impact. The officials will probably send out a Hazmat team, take air samples, collect the debris from the crash and investigate the exact composition. (Assuming that the authorities have the necessary resources. Otherwise they'll probably get someone to dispose of it and let the air clear.)
Parent
Re:Andromeda Strain!!! or not... (Score:5, Interesting)
http://www.epa.gov/ttnatw01/hlthef/hydrazin.html [epa.gov] describes the effects, which seem similar to what these South Americans are experiencing.
Parent
Perhaps Nickel Vapour (Score:5, Informative)
If the meteorite was of Iron/Nickel composition there's a good chance a fair amount of nickel was boiled off and carried into the area, possibly some produced by the head of the impact and blast.
Please see: Toxicity Summary for NICKEL AND NICKEL COMPOUNDS [ornl.gov]
Parent
Re:Perhaps Nickel Vapour (Score:5, Insightful)
Parent
Re:Andromeda Strain!!! or not... (Score:5, Interesting)
As you speculated, when events like this are reported, the various space agencies are usually very quickly able to identify possible satellites that may have entered during a given time frame. For example, a Russian booster entered over my home county about 10 years back. It had already been identified the next morning. Incidentally, it burned up completely. No crater.
Regarding a plutonium carrying satellite. Although I've mentioned such couldn't account for such a crater, there have been quite a few put into space. Cosmos 954 [wikipedia.org], which failed to reach orbit and disintegrated over Canada (note that it was not designed to survive re-entry) is a notable example, but the Russians built dozens of these satellites. Actually, the Cosmos RORSATS were powered by uranium-fueled nuclear reactors, not plutonium RTG's. Anyway, when the RORSATS reached the end of their life, the fuel bundle was actually ejected by a small rocket into a 1000 km disposal orbit, which will delay their re-entry by several hundred more years. I suppose most of the satellite bodies themselves have already re-entered.
Interestingly, this has been found to be a rather major source of space debris, as some of the liquid sodium coolant was ejected simultaneously with but free from the core. Once free from the heat of the reactor, the liquid sodium hardens into little metal spheres.
Parent
nonsense (Score:5, Informative)
Ok, let's refute your specious points one by one.
The Chernobyl reactor that failed was not built to not melt down - and it was being operated outside of its designed normal operating envelope which is what actually caused the catastrophic failure. Hell, the thing didn't even have a containment vessel.
The Space Shuttle Challenger didn't initiate the explosion, the solid rocket boosters did, which was because they were being used at too cold of an environmental temperature and, against warnings from the manufacturer, the shuttle was launched anyway (human error once again, but not in the design, in the use of the machine in question).
The Tacoma Narrows bridge apparently was not designed not to collapse - the designer failed to factor in the high wind speeds in the Tacoma Narrows and the resulting resonant effect on the structure into the bridge design.
In other words, your post is a bunch of pointless fear mongering along the lines of "humans can't do anything right". That is complete and utter nonsense - humans design things that work in extreme circumstances all the time. You might as well have said "Won't somebody think of the children!?!?".
Parent
Re:Bridge failure (Score:5, Informative)
Before you re-write history, check the news reports of the day. It wasn't a very windy day. The bridge was stable at much higher winds. The moderate wind and the direction was just right to produce a resonant feedback. It wasn't high winds that too the bridge down. It was steady mild wind that kept putting more motion into a resonant system.
References;
http://www.pbs.org/wgbh/nova/bridge/meetsusp.html [pbs.org]
At the time it opened for traffic in 1940, the Tacoma Narrows Bridge was the third longest suspension bridge in the world. It was promptly nicknamed "Galloping Gertie," due to its behavior in wind. Not only did the deck sway sideways, but vertical undulations also appeared in quite moderate winds. Drivers of cars reported that vehicles ahead of them would completely disappear and reappear from view several times as they crossed the bridge. Attempts were made to stabilize the structure with cables and hydraulic buffers, but they were unsuccessful. On November 7, 1940, only four months after it opened, the Tacoma Narrows Bridge collapsed in a wind of 42 mph--even though the structure was designed to withstand winds of up to 120 mph.
http://en.wikipedia.org/wiki/Tacoma_Narrows_Bridge [wikipedia.org]
The wind-induced collapse occurred on November 7, 1940 at 11:00 AM(Pacific time), due partially to a physical phenomenon known as mechanical resonance. [4]
And for sake of balance here is a modern study stating it wasn't resonance but instead a negative feedback;
http://www.ketchum.org/wind.html [ketchum.org]
" . . . in many undergraduate physics texts the (1940 Tacoma Narrows bridge) disaster is presented as an example of elementary forced resonance . . . Engineers, on the other hand, have studied the phenomenon . . . and their current understanding differs fundamentally from the viewpoint expressed in most physics texts. In the present article the engineers' viewpoint is presented . . . It is then demonstrated that the ultimate failure of the bridge was in fact related to an aerodynamically induced condition of self-excitation or "negative damping" . . . This paper emphasizes the fact that. physically as well as mathematically, forced resonance and self- excitation are fundamentally different phenomena.
The one common thread in all the above is it was not a high wind that took the bridge down. It was the feedback pumping energy into the motion.
Parent
Re:Plutonium thermal generators (Score:5, Interesting)
No. Chernobyl had issues, but the reason it melted down was that ALL of the safety features were disabled to run a test for the Soviet equivalent of the NRC.
The test in question was meant to determine how much power could be extracted from a nuclear plant in meltdown. Which information would allow them to plan better for dealing with meltdowns, should one happen.
Alas, to put Chernobyl into the near-meltdown condition required for the test, they had to disable all of the safety interlocks, then push the plant to the brink of a meltdown.
And when you push a nuclear plant to the brink of meltdown with ALL of the saftey interlocks disabled, bad things can happen.
Parent
Re:Plutonium thermal generators (Score:5, Informative)
Parent
Re:Andromeda Strain!!! or not... (Score:5, Informative)
No, sorry. That's horrendously incorrect. There have only been a handful of missions that used RTGs as power sources. Most satellites rely on Solar Power and batteries to operate. The reasoning is simple: Nuclear materials are EXPENSIVE. Far too expensive for anyone other than NASA to use. And NASA only uses them for very specific missions where no other option is feasible. (For example, while the current rovers have a few grains of plutonium to keep the joints from freezing on Mars, they are still powered by solar panels. The follow-up mission was supposed to use RTGs to provide a longer-lasting robot, but that's being reevaluated in light of the longevity of Spirit and Opportunity.)
Wikipedia has a list of RTGs and their missions here:
http://en.wikipedia.org/wiki/Radioisotope_thermoelectric_generator#RTG_models [wikipedia.org]
Parent
Re:Andromeda Strain!!! or not... (Score:5, Insightful)
Parent
Re:Andromeda Strain!!! or not... (Score:5, Informative)
There is an exception to this rule though:
http://en.wikipedia.org/wiki/Radioisotope_thermoelectric_generator#Use [wikipedia.org]
http://en.wikipedia.org/wiki/RORSAT [wikipedia.org]
Parent
Fungus is among us (Score:5, Interesting)
Re:Fungus is among us (Score:5, Funny)
Um, okay, but you're going to need to give us an e-mail address or something.
I'm not saying they've shown up yet, I just want to be prepared. Because when they do show up, and everyone is going to be running around and freaking out and trying to shoot space spore zombies with hastily loaded rifles and everything, they're going to be thinking, "Aw, crap, that one guy on Slashdot asked us to let us know when this happens, and we totally are letting him down!" But not me, man. When those zombies start clawing on my door, first thing I'm gonna do: I am going to LET YOU KNOW.
Parent
Headaches? (Score:5, Funny)
(Almost) Useless without pics (Score:5, Insightful)
Re:(Almost) Useless without pics (Score:5, Informative)
http://www.guardian.co.uk/space/article/0,,2171920,00.html [guardian.co.uk]
Parent
Different facts, JPL? (Score:5, Funny)
Parent
Photo (Score:5, Informative)
too much TV (Score:5, Funny)
The SCO meteorite? (Score:5, Funny)
Plain dirt isn't healthy (Score:5, Informative)
Worse if it hits a guano site, town dump or septic landfarm.
Re:Confirmation on this one? (Score:5, Insightful)
Parent
Re:Sounds Like Commander Data's Work (Score:5, Informative)
Parent