
from Yale Law Library flickr
The latest estimates, though, suggest that about 2,000 manuscripts were torched, while the remainder of the estimated 30,000 at the institute survived.
A Written Legacy
The written word is deeply rooted in Timbuktu's rich history. The city emerged as a wealthy center of trade, Islam, and learning during the 13th century, attracting a number of Sufi religious scholars. They in turn took on students, forming schools affiliated with's Timbuktu's three main mosques.
The scholars imported parchment and vellum manuscripts via the caravan system that connected northern Africa with the Mediterranean and Arabia. Wealthy families had the documents copied and illuminated by local scribes, building extensive libraries containing works of religion, art, mathematics, medicine, astronomy, history, geography, and culture.
"The manuscripts are the city's real gold," said Mohammed Aghali, a tour guide from Timbuktu. "The manuscripts, our mosques, and our history—these are our treasures. Without them, what is Timbuktu?"
This isn't the first time that an occupying army has threatened Timbuktu's cultural heritage. The Moroccan army invaded the city in 1591 to take control of the gold trade. In the process of securing the city, they killed or deported most of Timbuktu's scholars, including the city's most famous teacher, Ahmed Baba al Massufi, who was held in exile in Marrakesh for many years and forced to teach in a pasha's court. He finally returned to Timbuktu in 1611, and it is for him that the Ahmed Baba Institute was named.
Hiding the Texts
In addition to the Ahmed Baba Institute, Timbuktu is home to more than 60 private libraries, some with collections containing several thousand manuscripts and others with only a precious handful.
Sidi Ahmed, a reporter based in Timbuktu who recently fled to Bamako, said Monday that nearly all the libraries, including the world-renowned Mamma Haidara and the Fondo Kati libraries, had secreted their collections before the Islamist forces had taken the city.
"The people here have long memories," he said. "They are used to hiding their manuscripts. They go into the desert and bury them until it is safe."
(from National Geographic)
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Biology’s databank, DNA has long tantalized researchers with its potential as a storage medium: fantastically dense, stable, energy efficient and proven to work over a timespan of some 3.5 billion years. While not the first project to demonstrate the potential of DNA storage, Church’s team married next-generation sequencing technology with a novel strategy to encode 1,000 times the largest amount of data previously stored in DNA.
The researchers used binary code to preserve the text, images and formatting of the book. While the scale is roughly what a 5 ¼-inch floppy disk once held, the density of the bits is nearly off the charts: 5.5 petabits, or 1 million gigabits, per cubic millimeter.
The information density and scale compare favorably with other experimental storage methods from biology and physics,” said Sri Kosuri, a senior scientist at the Wyss Institute and senior author on the paper.
And where some experimental media — like quantum holography — require incredibly cold temperatures and tremendous energy, DNA is stable at room temperature.
You can drop it wherever you want, in the desert or your backyard, and it will be there 400,000 years later,” Church said.Reading and writing in DNA is slower than in other media, however, which makes it better suited for archival storage of massive amounts of data, rather than for quick retrieval or data processing.
Imagine that you had really cheap video recorders everywhere,” Church said. “Just paint walls with video recorders. And for the most part they just record and no one ever goes to them. But if something really good or really bad happens you want to go and scrape the wall and see what you got. So something that’s molecular is so much more energy efficient and compact that you can consider applications that were impossible before.
About four grams of DNA theoretically could store the digital data humankind creates in one year.
Although other projects have encoded data in the DNA of living bacteria, the Church team used commercial DNA microchips to create standalone DNA.
“We purposefully avoided living cells,” Church said. “In an organism, your message is a tiny fraction of the whole cell, so there’s a lot of wasted space. But more importantly, almost as soon as a DNA goes into a cell, if that DNA doesn’t earn its keep, if it isn’t evolutionarily advantageous, the cell will start mutating it, and eventually the cell will completely delete it.
In another departure, the team rejected so-called ‘shotgun sequencing,’ which reassembles long DNA sequences by identifying overlaps in short strands. Instead, they took their cue from information technology, and encoded the book in 96-bit data blocks, each with a 19-bit address to guide reassembly. Including jpeg images and HTML formatting, the code for the book required 54,898 of these data blocks, each a unique DNA sequence.
“We wanted to illustrate how the modern world is really full of zeroes and ones, not As through Zs alone,” Kosuri said.
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| M.K. Čiurlionis photos from Caucasus |
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| M.K. Čiurlionis photos from Caucasus |
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| The last painting by M.K.Čiurlionis |
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| The power of a bare willy! Petras Mazuras managed to produce a sculpture that has be causing discontent among prudent Lithuanians for over 20 years now. No need for Salman Rushdie here. |
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| Original toilet from 1989. Most certainly adds to the charm and the atmosphere of the gallery. |
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| How not to light the paintings. |