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Monday, February 29, 2016

Afghanistan's poet-martyrs

image: photo of a group of Afghan women in burqas
Afghan women, AsiaSociety.org
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Eliza Griswold, a poet herself, wrote an article Why Afghan Women Risk Death to Write Poetry that captures one of the ways these women survive (or don't) their rigidly enforced roles as women. She describes the interaction of rural female poets with a group of urban women who have formed a society of more than 100.
Mirman Baheer, Afghanistan’s largest women’s literary society, is a contemporary version of a Taliban-era literary network known as the Golden Needle. In Herat, women, pretending to sew, gathered to talk about literature. In Kabul, Mirman Baheer has no need for subterfuge. Its more than 100 members are drawn primarily from the Afghan elite: professors, parliamentarians, journalists and scholars. They travel on city buses to their Saturday meetings, their faces uncovered, wearing high-heeled boots and shearling coats. But in the outlying provinces — Khost, Paktia, Maidan Wardak, Kunduz, Kandahar, Herat and Farah — where the society’s members number 300, Mirman Baheer functions largely in secret.

Poetry is one of the few creative releases available to women in Afghanistan, and even then they are in danger of being discovered. Amail, an urban member of Mirman Baheer, mentors one of the rural poets, Meena Muska (her pen name).
Of Afghanistan’s 15 million women, roughly 8 out of 10 live outside urban areas, where U.S. efforts to promote women’s rights have met with little success. Only 5 out of 100 graduate from high school, and most are married by age 16, 3 out of 4 in forced marriages. Young poets like Meena who call into the hot line, Amail told me, “are in a very dangerous position. They’re behind high walls, under the strong control of men.” Herat University’s celebrated young poet, Nadia Anjuman, died in 2005, after a severe beating by her husband. She was 25.
Pashtun poetry has long been a form of rebellion for Afghan women, belying the notion that they are submissive or defeated. Landai means “short, poisonous snake” in Pashto, a language spoken on both sides of the Afghanistan-Pakistan border. The word also refers to two-line folk poems that can be just as lethal. Funny, sexy, raging, tragic, landai are safe because they are collective. No single person writes a landai; a woman repeats one, shares one. It is hers and not hers. Although men do recite them, almost all are cast in the voices of women. “Landai belong to women,” Safia Siddiqi, a renowned Pashtun poet and former Afghan parliamentarian, said. “In Afghanistan, poetry is the women’s movement from the inside.”

An example of landai is
“On Doomsday, I will say aloud,
I came from the world with my heart full of hope.”
                                                              -- Zarmina

In her article, Eliza Griswold follows the stories of two poets, the elusive Meena
Meena lost her fiancĂ© last year, when a land mine exploded. According to Pashtun tradition, she must marry one of his brothers, which she doesn’t want to do. She doesn’t dare protest directly, but reciting poetry to Amail allows her to speak out against her lot. When I asked how old she was, Meena responded in a proverb: “I am like a tulip in the desert. I die before I open, and the waves of desert breeze blow my petals away.” She wasn’t sure of her age but thought she was 17. “Because I am a girl, no one knows my birthday,” she said.
and Zarmina.
Rahila was the name used by a young poet, Zarmina, who committed suicide two years ago. Zarmina was reading her love poems over the phone when her sister-in-law caught her. “How many lovers do you have?” she teased. Zarmina’s family assumed there was a boy on the other end of the line. As a punishment, her brothers beat her and ripped up her notebooks, Amail said. Two weeks later, Zarmina set herself on fire.

Eliza's poetry can be found Poetry Foundation and Work in Progress.

-- Marge



Wednesday, February 24, 2016

Cosmology: a change in perspective

Video credits: Science Channel, "Viewing the Universe for the First Time" 
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Assuming you're the center of anything except your own life can be a misleading proposition. Take for example the ancients', and particularly Ptolemy's, observation that the Earth was the center of the universe. Now we call it the geocentric model, then it was the basis of their cosmology and served to inform religion, science, and philosophy. Ptolemy's model was called the Almagest (AD 150) and the "system persisted, with minor adjustments, until the Earth was displaced from the centre of the universe in the 16th and 17th centuries by the Copernican system and by Kepler’s laws of planetary motion" (Brittanica).
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image: photo of 16th century tract on geocentric model
Sacrobosco, Tractatus de Sphaera (1550), Wikipedia
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By the 16th century the system was beginning to fall apart, as described in Universe (William J. Kaufmann III, W.H. Freeman & Company, New York, 1985):
...Tiny errors and inaccuracies that were unnoticeable in Ptolemy's day compounded and multiplied over the years, especially with regard to precession. Fifteenth century astronomers made some cosmetic adjustments to the Ptolemaic system. However, the system became less and less satisfying as more complicated and arbitrary details were added to keep it consistent with the observed motions of the planets.

Individual investigators, such as Aristarchus of SamosNicolaus Copernicus, and Tycho Brahe, theorized that the bodies observed from Earth and Earth itself moved around the sun, but could not prove it. It wasn't until Galileo Galilei looked through the new telescope that it all came together. Here is a page of his notes on Jupiter.
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image: photo of Galileo's notes on the moons of Jupiter
Galileo, notes on moons of Jupiter, StrongBrains
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Two references looking at the depth of the "cosmological models developed by Plato, Eudoxus, Aristotle, Ptolemy, Copernicus and others" are Celestial spheres at Wikipedia and Medieval cosmology at Luminarium Encyclopedia.


-- Marge



Monday, February 22, 2016

Art: two contemporary artists

image: watercolor by Dima Rebus, "I've been out walking"
Dima Rebus, "I've been out walking," dimarebus.com
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Taking a break from posts on technical topics, here are two artists that I found online--Dima Rebus, a Russian watercolorist, and Diana Al-Hadid, an American sculptor. It's apparent from the work of both these artists that they have unique ways of looking at the world. Ms. Al-Hadid goes so far as to ask: "How does an artist resist reality?" This may seem a strange question, but not all artists want to blindly copy the world. The video below gives intriguing insights into how the creative process works for her.

Dima Rebus' work is fairly easy to find on the internet at sites like Colossal and Juxtapoz, but he himself is somewhat a mystery. The most in-depth information I found about him was at the site of a  Moscow-based gallery, Artwin Gallery. They say this about Mr. Rebus and contemporary Russian artists:
We are discovering a new generation of urban artists. They prefer personal anonymity while hiding their faces behind avatar userpics and turning their real names into screenname rebuses. Dima’s artistic journey is another generation’s turn in Russian urban painting. It seems like we saw it twenty years ago during Perestroika and during the “Thaw” of the sixties. His young age can be only identified by the mature artistic skills and by the way he looks at the Soviet past, the thing that he never experienced in his real life. This is what represents true contemporary Russian art now, not pseudo-Russian pseudo-art of Old Arbat. Dima Rebus is a young artist masterly working in a watercolour technique. The essence of his unique style is in a delicate drawing and in a keen perception of the surrounding medium. Dima’s works are always filled with air and irony, two elements, that play an important role in his art. Each of his works is outstanding and intriguing. For the painter it is very crucial to show self irony, helping to step aside and not take himself very seriously: “A man who has a sense of humour is beautiful, but a man who has self-irony is even more beautiful” – Dima Rebus. Also Rebus is very famous for his talented illustrations for children’s books, and he collaborates with a number of large publishing companies and design studios, such as Total Football, Snob, Esquire, GQ and others.
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image: watercolor by Dima Rebus, "Self-portrait with a cherry"
Dima Rebus, "Self-portrait with a cherry," dimarebus.com
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Diana Al-Hadid originated in Syria and was raised in Cleveland, Ohio. She's very clear on what she wants to do with her work. You can find several videos about her at Art21. The video below gives some of her artistic philosophy, as well as personal background.
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-- Marge


Friday, February 19, 2016

Cartoons: this week's outtakes (hopefully)

Looking at some of the trends from this week's news and editorial views, we see Hollywood producing the presidential election; Judge Judy as Trump's nominee for the Supreme Court; Trump added to Mt. Rushmore; the right to privacy as a fiction (made up by whom?); and the U.S Constitution vs. a cocktail napkin.

The 2016 race and possibly election:
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image: cartoon by David Horsey
David Horsey, The Week
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image: cartoon by Marshall Ramsey
Marshall Ramsey, The Week
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image: cartoon by Bill Schorr
Bill Schorr, The Week
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The DoJ vs. Apple:
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image: cartoon by David Fitzsimmons
David Fitzsimmons, The Week
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Replacing Scalia:
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image: cartoon by Mike Luckovich
Mike Luckovich, The Week
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-- Marge


Wednesday, February 17, 2016

From hacker to #OpISIS

image: cover art for article in Atlantic Monthly
The Cyber Activists Who Want to Shut Down ISIS, Reuters / Paul Spella / The Atlantic
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Freedom of speech can be so tricky. If you're a hate-monger like the late Fred Phelps of the Westboro Baptist Church it's O.K. to say things like "Thank God for dead soldiers" at the funeral of a U.S. Marine killed in Iraq. But if you're whistleblower Edward Snowden releasing classified information revealing the extent of the NSA's snooping, you're a traitor. There is a Whistleblower Protection Act but it appears to be limited to "federal whistleblowers who work for the government and report agency misconduct." It didn't help Edward Snowden. WikiLeaks did.

Then there are hactivists. Many consider organizations such as Anonymous annoying, even dangerous. Not all agree. Author John Mellow at PC World quoted Yochai Benkler of Harvard Law School as saying "'Audacious' Hactivists Make Social Statement..." My apologies for not quoting directly from Hacks of Valor: Why Anonymous Is Not a Threat to National Security, but I chose not to sign up for my one free article a month at Foreign Policy.

But since the Charlie Hebdo shooting of Jan 2015 in Paris, Anonymous has taken on the new role of waging war against ISIS (Islamic State of Iraq and the Levant). Looking again at Foreign Policy, a most prestigious magazine published by the FP Group, there's the article Anonymous Vs. The Islamic State, an eye-opener (at least in my view). This from the article:
For more than a year, a ragtag collection of casual volunteers, seasoned coders, and professional trolls has waged an online war against the Islamic State and its virtual supporters. Many in this anti-Islamic State army identify with the infamous hacking collective Anonymous. They are based around the world and hail from every walk of life. They have virtually nothing in common except a passion for computers and a feeling that, with its torrent of viral-engineered propaganda and concerted online recruiting, the Islamic State has trespassed in their domain. The hacktivists have vowed to fight back.

Another article, this one in The Atlantic, describes The Cyber Activists Who Want to Shut Down ISIS.

About the online recruiting--it's beginning to look like we have to collectively work at bringing youth back from their isolation: Loneliness: a silent plague that is hurting young people most.


-- Marge





Monday, February 15, 2016

More about harvesting water from air

image: illustration of how a Warka Tower functions
Warka Tower: How it functions, WarkaWater
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A while back I posted about the Warka Tower, DIY: getting water from air. I'm happy to report that the Warka Water project is strong and evolving. That it doesn't require electricity is one of its best features.

Atmospheric water generation isn't particularly new (see air well), but growing awareness of the need for good potable water in developing countries has spurred new approaches. To wrap your head around the enormity of the need, check out Water for People and Earth Institute's State of the Planet, where fog collectors are described.

A new company in South Africa, Water from Air, is making a splash ( ;-) ). Their video raises an interesting point about water purification. There's also Water-Gen, which was developed primarily for the Israel Defense Forces (IDF).

Standing or sitting water can pose health problems, because it may foster the growth of unfriendly microorganismsUltraviolet water purification is widely used; this site compares it with chlorine purification.

Not all water collection must result in potable water. FogQuest in one project "provide[s] water for a commercial aloe vera crop" in Chile.

As an aside: I never fully understood what Luke Skywalker's aunt and uncle did on Tatooine. They had a Moisture Farm. Here Luke Skywalker and WED-15-77, a Treadwell droid, attend to a moisture vaporator on Tatooine,
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-- Marge



Friday, February 12, 2016

Cartoons: Gotham City's Batman to the rescue?

It's all politics in my cartoon world today, except for one about the Zika Virus and one about lead levels in Flint vs. those in Pennsylvania. So here are my picks.

Can we all agree that presidential politics have gone to hell in a handbasket, or in this case a dumpster, this election cycle?
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image: cartoon by Marshall Ramsey
Marshall Ramsey, The Week
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Here's the latest on the main contender--Donald Trump.
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image: cartoon by Bob Gorrell
Bob Gorrell, The Week
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There's a possibility of a new contender--Michael Bloomberg, another billionaire. Oligarchy, anyone?
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image: cartoon by John Darkow
John Darkow, The Week
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And that's it, Folks.

-- Marge


Wednesday, February 10, 2016

The power of collapsing bubbles

image: photo of sonoluminescence caused by cavitation
This cloud of collapsing bubbles are lit up by their own sonoluminescence (2005). Nature
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Cavitation is the term for a phenomenon caused by bubbles collapsing. The idea of bubbles collapsing sounds pretty innocuous, right? But enough of them in the wrong places can cause damage. They can do some valuable work, too. A boat or ship moves because of the bubbles around its whirling propeller. The ultrasonic cleaner in the dentist's office uses cavitation. And the noisy pipes in your house are caused by cavitation. (For example, take a look at this PDF: Why Cavitation Can Destroy Your Pump and Pipes). A small gas bubble, driven at ultrasonic frequencies, can produce sonoluminescence when it collapses. Wikipedia describes how this works.

NASA has an interesting paper titled Development of techniques to investigate sonoluminescence as a source of energy harvesting (2007).

There are some research topics published by Science Daily that may interest you, such as Destructive power of bubbles could lead to new industrial applications (2015). Quoting the article:
Bursting bubbles pull in material like black holes.

Snapping Shrimp Drown Out Sonar With Bubble-Popping Trick (2000):
Until recently, scientists had assumed that the snapping noise occurred when the two parts of the claw banged shut. Now, however, a team of physicists and a biologist have discovered that the noise, in fact, comes from the collapsing of small bubbles generated by the claw's closing motion.

And this showstopper: Temperature Inside Collapsing Bubble Four Times That Of Sun (2005):
“When bubbles in a liquid get compressed, the insides get hot – very hot,” said Ken Suslick, the Marvin T. Schmidt Professor of Chemistry at Illinois and a researcher at the Beckman Institute for Advanced Science and Technology. “Nobody has been able to measure the temperature inside a single collapsing bubble before. The temperature we measured – about 20,000 degrees Kelvin – is four times hotter than the surface of our sun.”

This has lead to the conjecture that nuclear fusion can be generated by cavitation: An Odd Hypothesis About Bubbles Could Finally Lead to Nuclear Fusion (2015).

Possibly cavitation is one of the processes in cold fusion. Don't know. What do you think?

-- Marge



Monday, February 08, 2016

Friday, February 05, 2016

Cartoons: distilled nonsense

The race is on for New Hampshire and today we look at a few editorial comments about that. Also, in the news are 300 plumbers helping the poisoned in Flint and Curvy Barbie.

Seems to me Tom Toles hit the nail squarely with this one. For news on the primaries, pin this to a tab in your browser check Google.
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image: cartoon by Tom Toles
Tom Toles, The Week
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Hilary vs. Bernie, Trump vs. Cruz--where do you stand?
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image: cartoon by Steve Sack
Steve Sack, The Week
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This has likely happened to Cruz more than once.
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image: cartoon by David Horsey
David Horsey, The Week
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Bad as conditions are in Flint, the plumbers came through. The article notes:
And while Flint residents are focused on access to clean water, a new lawsuit is taking aim at the cost of poisonous water those residents have already paid for.
At least the residents of Flint will get their day in court. Question is: how do you collect from a bankrupt city?
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image: cartoon by Nate Beeler
Nate Beeler, The Week
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How about this headline? Curvy or no, Barbie is still a mean girl. Interesting article. Mattel's sales are up.
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image: cartoon by Drew Sheneman
Drew Sheneman, The Week
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-- Marge





Wednesday, February 03, 2016

Self-learning swarm robots

image: robots swarming
Robot swarm, COCORO
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Speak of harbingers of replicators! (Fans of Stargate know what I'm talking about.)

Gizmag announced today that Swarming robot boats demonstrate self-learning. According to the article,
Instead of using a central computer or programming each robot individually, the swarm operates on what the team calls a Darwinian approach. In other words, each robot is equipped with a neural network that mimics the operations of a living brain. The robots are given a simple set of instructions about how to operate in relationship to one another as well as mission goals.
The robots are then allowed to interact with one another in a simulated environment and those that display successful mission behavior are allowed to proceed. The "fittest" robots from the simulations are then tested in the real world.
Swarm robotics has been attracting attention, especially for military applications. DARPA (Defense Advanced Research Projects Agency under the U.S. Department of Defense) is responsible for the development of emerging technology for use by the military; it had an ongoing Robotics Challenge from 2012 to 2015. The site War on the Rocks has a 6-part series, titled The Coming Swarm, on the topic.

Science Direct published a research paper on Research Advance in Swarm Robotics that looks at how scientists are using observations of swarms in nature to advance understanding of swarm intelligence. For more information on swarm intelligence, take a look at a report on the European project called COCORO (Collective Cognitive Robots) in COCORO: robot swarms use collective cognition to perform tasks.
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image: photomontage, examples of swarming in nature
Examples of swarming behavior in nature, ScienceDirect
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And for you entertainment, here's a video from the Stargate SG1 Channel of our dauntless heroes battling the replicators.
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-- Marge


Monday, February 01, 2016

Science: the brain, the immune system, and C4

image: illustration of lymphatic system
Human body, lymphatic system, livescience
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Two separate scientific reports give concrete information on how the brain and immune system interact . One report finds that the brain is directly connected to the immune system; the other that the immune system may contribute to schizophrenia via a gene called C4.

In June 2015, researchers at the University of Virginia School of Medicine revealed findings that the brain is directly connected to the immune system by vessels previously thought not to exist (ScienceDaily). Scientific American also reported on this discovery, saying
As early as 1921 scientists recognized that the brain is different, immunologically speaking. Outside tissue grafted into most parts of the body often results in immunologic attack; tissue grafted into the central nervous system on the other hand sparks a far less hostile response. Thanks in part to the blood-brain barrier — tightly packed cells lining the brain's vessels that let nutrients slip by, but, for the most part, keep out unwanted invaders like bacteria and viruses — the brain was long considered "immunologically privileged,” meaning it can tolerate the introduction of outside pathogens and tissues. The central nervous system was seen as existing separately from the peripheral immune system, left to wield its own less aggressive immune defenses.
Scientific American describes the previously-understood separation between the lymphatic system and the brain:
The brain’s privilege was also considered to be due to its lack of lymphatic drainage. The lymphatic system is our body's third and perhaps least considered set of vessels, the others being arteries and veins.  Lymphatic vessels return intracellular fluid to the bloodstream while lymph nodes – stationed periodically along the vessel network – serve has storehouses for immune cells. In most parts of the body, antigens – molecules on pathogens or foreign tissue that alert our immune system to potential threats – are presented to white blood cells in our the lymph nodes causing an immune response. But it was assumed that this doesn’t occur in the brain given its lack of a lymphatic network, which is why the new findings represent a dogmatic shift in understanding how the brain interacts with the immune system.
Protecting us against disease, the immune system is an important function of the lymphatic system, which also includes bone marrow, the spleen, and the thymus.

Interaction between psychological processes and the nervous and immune systems of the human body, called psychoneuroimmunology, has been recognized by physicians since the mid-1800s. Common examples are stress causing a headache and the placebo effect.

This month the MIT Technology Review published Immune System Offers Major Clue to Schizophrenia. For so long schizophrenia, which "strikes in late adolescence or early adulthood, sending previously high-functioning individuals spinning into psychosis and often leaving them with devastating cognitive deficits (MIT)," has been a black box. We know it only by its devastating effects. This study finally sheds some light:
The C4 gene participates in what’s known as “the complement cascade,” a process by which the immune system marks tumors, viruses, or dying human cells for elimination and removal. What Stevens, along with Stanford biologist Ben Barres, found was that the complement cascade also plays a novel role in brain development early in life. Specifically, the system helps to “prune” unneeded or unused synaptic connections, sculpting the brain into a more efficient structure. Stevens demonstrated that complement molecules were serving as an “eat me” signal, summoning tiny cells in the brain known as microglia to converge on unused synapses and prune them away.
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image: a patient's rendering of schizophrenia
Artistic view of how the world feels with schizophrenia, Wikipedia
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-- Marge