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Science blog!

So, this morning has come




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Eyjafjallajökull

Uff ... what a weekend. A relatively small volcano in Iceland blows ashes over the Atlantic (after all, the Icelanders have now ever again "ash", hahaha) sinks and Europe in the travel chaos. Over the whole lot was already reported by all news sites and channels in detail and verbloggt the web.

fact, almost too late, but what the heck, I'll also contribute my two cents. This is more of an opinion article.

The question for days hanging around in space: the flight ban is justified? This can hardly be generally well answered. In general, the balance between economic damage and danger to human life an extremely tricky in the skin of the decision would not stick me.

In the hustle and bustle is the call for more test flights louder. Even on weekends, there were several of them in Europe, with different results

Scientists from Wiltshire who have been making test flights into the volcanic ash cloud say the decision to close UK airspace is not an over-reaction. BBC.

completely incomprehensible I find the action of Lufthansa, to make a handful of test flights and then to proclaim proudly, nothing happened, so everything is ok. What? Even with Lufthansa, there should be really an understanding of statistics and scientific methods.

Imagine, a mathematician wants to find the probability of winning the lottery, bought a single Losschein, loses, and notes: "! The probability is 1 to infinity, zero percent no one can ever win the jackpot"

Even with a probability of accidents by 1-1 million of the airspace would be far too unsafe. In a day 20 000 flights in Europe that would mean, every day new Russian roulette with 1:50 for the Jackpot - I would not want to fly. In short: Three test flights and wipe afterwards with his finger over the window and look at whether what is left hanging - this is not science!

The aircraft launched today as perhaps the DLR can provide better answers. have worked Hats off to employees who, day and night to make preparations - which usually swallow several weeks - in a single weekend to perform. If everything works, it could already give evaluations for the German air space.


The problem is not necessarily the cloud itself, but the fact that there are few limits or experience with engines. Even if the cloud first measure has well - without a sense of how much could they harm an engine, is only a guide. The two known injuries from the 80 found in each place at very high densities of ash - but for two events can still be long build any statistics. My gut feeling tells me that the airspace over Germany is probably safe enough. But gut feelings are not always good advice - and as long as uncertainties prevail, absolute care is definitely the best way.

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New record: 5000m deep black smokers found

black smoker hydrothermal vents are on the ocean floor, from which often rises several hundred degrees hot water up. They are particularly interesting to biologists because at these points there is often a completely unique flora and fauna.

Now, researchers were able to measure film new black smokers in the Caribbean - in mad deep!

"It was like wandering across the surface of another world," says Bramley Murton, a geologist at the National Oceanographic Centre (NOC) in Southampton, UK, who piloted the Hy-up underwater vehicle around these deep volcanic vents and filmed them for the first time.

"The rainbow hues of the mineral Spires and the fluorescent blues of the microbial mats covering them were like nothing I had ever seen before, "Murton says.

(via New Scientist )

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note in their own right - Attendance

pardon, that it was the last days a bit quiet, the new semester has arrived (new lesson plans, everything can be converted deported must , no one abides by the rules, you know the yes) -.. and the move to Science blog will probably have to wait a couple of days I'm still trying to create text and logo and also has my faithful old Microsoft mouse . 8 years of continuous use now finally given up the ghost someone donates for a replacement mouse? D

In the meantime, some data in his own behalf, for the reader interested with:





















The 28th and 31 one month will unfortunately not appear (bugged program). Angry - as on 28 February there were 354 people on the second-most visitors!

From the figures can be nice to see which items were most popular. Above all, conspiracy stories! Daruf I will go again tomorrow. Moreover, the distribution of visitors was very dependent on the "Vertwitterung" of the article, many thanks for that!

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vs. science. American politicians

American politicians are often a source of amusement. In America, all scream "Socialism!" Because health insurance is introduced, the money of the people is to actually put into health care and not in the pockets of the managers. Actually know one of them what "socialism" mean anyway? Do not they remember that the old American system more than twice as expensive as the German example (which also is not optimal), but the citizens will get a lot worse care?

Anyway, I am not a health expert and would like to comment on this unwillingly. Policy without any knowledge is dangerous. A few days ago Hank Johnson was the deputy with his troubles headlines, the island of Guam "could capsize and sink in overpopulation.



Or the Arizona senator, puts in a subordinate clause the age of the earth as a matter of course to 6,000 years:



Some weeks Florian wrote about American senators decided by resolution that Pluto is a planet but and global warming complete humbug. As I said, decided by law. The example with the evolution, it already knows all too well. 1897 wrote of the Illinois Senate, a law that stipulated in exactly Pi 3rd And that is really practical as this stupid long number with the number of decimal places!

Where is the German Bundestag? I support a law that from the sky has to be green, and the periodic table consists only of 5 elements, that are not usually can not remember. Another moon for the Earth was once cool. Does anyone have a petition application?

But seriously - I am surprised every time again how many people completely misunderstand how science actually works. Sad.

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Magnitude 7.7 - Earthquake rocks Indonesia

Edit: Ok, it's not really what happened, but saw last night still very different. You have to imagine the times: at 0.15 clock passed the shake to clock 0.22, the first automated tsunami warning was issued by NOAA, a few minutes later, the message and the first Twitter message boards. This was the first quake, which I was able to follow "live" on the computer. A few minutes nothing happened, then all hell was on Twitter, at least among several dozen agency tickers and Geobloggern. An institution had already modeled by 0.55 clock distribution around the fault plane and proudly showed the pictures, new tsunami warning wobbled on (with the note "is probably not very bad, but better be careful"), which Magnitude were corrected by USGS running up and down until it leveled off at 7.7. It took until about 1.15 clock until a fat CNN "Breaking News" bar fades and had set up a separate page. Gradually, it became clear that the damage will vary extremely low and could all go to bed. Somehow, that was quite exciting. The balance is good: only a few injuries, no deaths.

(courtesy xkcd )

The old text:
Against about 40 minutes it again gerappelt properly, an M 7.8-earthquake, some 200 km north-west of Sibolga, Sumatra, Indonesia . Local Tsunami warning was issued.

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I am writing in Science blog!

Meanwhile, it is probably far in the bag that I can tell you: I am moving house

the Science blog!

Already a few weeks ago I wrote a letter to the editor, a few emails and phone calls later it was all clear. I had cut down the invitation properly. Finally, write on ScienceBlogs ausstudierte especially professionals and I'm just a green-eared student in the 8th Semester. A great honor! In any case, I want you in this way to thank all the advocates, supporters, commentators and readers, thank you - without you this would not have been possible!


---

move is about in a week. Now I am facing a small but tricky question - should the title "And the water seems inviting" maintain or rather someone else be taken?

On one side of the first title suggests yes something else entirely. You might think that I was oceanographer or water sports - a friend once said, it sound very depressed and sounds like a suicidal. It is also quite long - in English.

On the other hand, the line also something poetic and beautiful, especially for those who know the words of Carl Sagan. It is perhaps something "warmer" than a simple cold heading. And ultimately, the title has also established a little, at least among those who have read this blog several times.


So - what do you think? Retaining or other name? Please be honest and to the moment you try to remember as you have seen the blog for the first time.

(My personal favorite for the best blog title is Ink In My Coffee in a book author, as it should be different. Sorry, already taken.)

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95 million-year-old lump of amber with insects, fungi and bacteria found

I am not a paleontologist, but such messages are well for all scientists exciting:

Africa chunks of amber were found, including the organisms of the Cretaceous - Jurassic Park Greetings!

the resin of the tree is unknown information found on fungi, nematodes, spiders, insects and bacteria from a time when dinosaurs still walked the earth and populated long-extinct organisms, land and sea. Created new species slowly - birds, mammals and angiosperms (flowering plants). Perhaps the resin itself is of such a plant: unknown still

"The tree that the sap is produced, but the amber's chemistry is surprisingly very much like that of a group of more recent New World angiosperms called Hymenaea, "says Nascimbene." Amber This could be from an early angiosperm or a previously-unknown conifer that is quite distinct from the other known Cretaceous amber-producing gymnosperms. "

" The first angiosperms, or flowering plants , appeared and diversified in the Cretaceous, "says first author Alexander Schmidt of the University of Gottingen in Germany." Their rise to dominance drastically changed terrestrial ecosystems, and the Ethiopian amber deposit sheds light on this time of change. "

That would be truly a sensation - the first of its kind found object An incredibly valuable insight into one of the most amazing periods of geological history, especially in the evolutionary!. Emergence of flowering plants is hoped that new knowledge.

"Until now, we had discovered virtually no Cretaceous amber sites from the southern hemisphere's Gondwanan supercontinent," says author Paul Nascimbene of the Division of Invertebrate Zoology at the American Museum of Natural History. "Significant Cretaceous amber deposits had been found Primarily in North America and Eurasia."

were in the amber pieces found over 30 arthropods, different from at least 13 families. Many of the findings thus represent the earliest ever found fossils of the species found in Africa dar. Among other things, wasps, dust, insects, moths, beetles, ants and the rare primitive Zoraptera . The Cretaceous period ended known at the Cretaceous-Tertiary boundary about 65 million years ago, when Dino Auer died out and the entire ecosystem of the Earth has been turned on its head.

international and interdisciplinary research in the area and now the amber findings will be further investigated. Publication is now a first paper in "Proceedings of the National Academy of Sciences.


(via the Daily Galaxy stumbleupon via via via Casey Kazan materials provided by American Museum of Natural History)

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The real volcano discovered (Sheet 2)

Recently I had wondered if the image is real here:

Yes, it is actually.
It is to the Ol Doinyo Lengai in Tanzania, the only active Karbonatitvulkan the earth - these volcanoes are otherwise only known from Venus. The image above cheating a bit and taken a very long exposure time (also evident in the stars). The lava lights themselves are very weak, just as visible.

But what is even Karbonatitlava? As you can imagine, it describes the lava that has a particularly high proportion of Karbonatitmineralen - at least 50%. Wikipedia writes:

This lava is very fluid, is about the viscosity of water. Recently solidified lava has a dark color, which quickly becomes a light beige. the lava of this volcano reached a maximum 590 ° C, compared to other volcanoes, lava, a relatively low temperature comes, but much deeper layers of the Earth's interior.

find a detailed text to the volcano at the end of this post.

day sees the whole rather unspectacular:

But at night, resulting scenes like from another planet:

The low temperatures can get very close to go and take samples. But even this "mini-Lavatube" has a few hundred degrees.

After a while, the weathered lava gray to white:

A fascinating place!



Here is a detailed text by Fred Belton :

Ol Doinyo Lengai volcano, altitude 2886 meters, is a unique and extremely fascinating volcano that towers above the East African Rift Valley in Northern Tanzania, just south of Lake Natron.  It is the only volcano in the world that sometimes erupts natrocarbonatite lava, a highly fluid lava that contains almost no silicon. Natrocarbonatite lava is also much cooler than other lavas, being only about 510 degrees C compared to temperatures over ~1100 degrees C  for basaltic lavas. Natrocarbonatite is the most fluid lava in the world.  Lava with a low gas content can flow like a whitewater stream, and actually has a viscosity near that of water. Natrocarbonatite lava glows orange at night, but is not nearly as bright as silicon-based lavas since it is not as hot.

During the day it is not incandescent; most flows look like very fluid black oil, or brown foam, depending on the gas content. In the past, some visitors to the crater believed they were seeing mud flows. Most newly solidified lava is black and contains crystals that sparkle brightly in the sun.  There are also sometimes small flows known as "squeeze-ups" that are light gray when they flow and harden.  Contact with moisture rapidly turns natrocarbonatite lava white because of chemical reactions that occur when the lava absorbs water.  Eventually the water absorption process turns lava flows into soft brown powder. During dry weather the whitening of flows happens over a period of a few days to a couple of weeks, depending on the thickness of the flow. In rainy weather the lava surface turns white immediately.  In parts of the crater that have been inactive for several months, the ground is light brown/white and so soft that one sinks into it when walking.

(Image courtesy mostly to Tom Pfeiffer, Marco Fulle, Fred Belton, Martin Rietze, Stephane Granier)
http://www.swisseduc.ch/stromboli/perm/lengai/index-de.html

Further to
http://geology.about.com/cs/volcanoes/a/aa031499.htm
http://frank.mtsu.edu/~fbelton/lengai.html
http://www.earlham.edu/~castlje/web/jessicac.htm
http://www.earlham.edu/ ~ graveti / oldoinyolengai.htm

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The false volcano (Sheet 1)

I had thought to write from my Rästel two articles - both in itself is extremely interesting
The
here:

is a fake.

These are the works of photographer and artist Matthew Albanese, who formed from all possible materials landscapes - allegedly without then supplement with Photoshop or similar. Even the clouds are self made:

and the grass is just a fake fur.

two together creates incredible landscapes:

The work is really impressive. A look at his collection and making-of gallery is definitely worth a click. this is just a small selection:




(via visboo )