Παρασκευή 28 Απριλίου 2017

Perictione, Plato and Socrates



Perictione was no ordinary woman. She is a descendant of Solon, the greatest Athenian lawmaker who replaced the actual Draconian laws with more humane ones. She is the sister of Charmides and the niece of Critias - two prominent personalities of the infamous Thirty Tyrants who ruled Athens for nearly a year following its defeat in the Peloponnesian War. 

Further, Perictione is one of the unsung teachers of Socrates and the mother of his greatest student, Plato. She was not the first ancient Greek woman who wrote about marital or female psychology. Yet her works are unique since they preach austerity and unflinching devotion to the husband, albeit in stark paradox to her wealthy upbringing and two marriages.

That Perictione was highly educated is apparent from her works and her demeanour, which has been broadly described as regal yet simple, benevolent and virtuous. Her first husband was Ariston of Collytus- a descendant of King Codrus of the ruling family of Athens, whom she married after a couple of years of courtship. Legends claim, Ariston either molested or attempted to force Perictione into physical intimacy but some supernatural occurrence deterred him, though this account is dubious.

Perictione and Ariston bore three children, which included three sons, Plato, Adeimantus and Glaucon, and a daughter named Potone. However, Ariston passed away when Plato was rather young.

Perictione and Plato

Perictione realized that Plato was exceptionally talented. Other than regular education, she also began teaching him some doctrines she had theorized by attending debates between thinkers and aristocrats. She also attended some of the public meetings held by Socrates and was impressed by his eccentric mannerisms.
The unique teachings of Socrates enamoured Perictione, leading her to believe her son Plato would study well under this great thinker. Further, she also felt it would in some ways, compensate for the lack of parental attention to Plato, since her husband Pyrilempes, due to his official duties, was unable to give him vital fatherly guidance.
As mother, Perictione had a great influence upon Plato’s thoughts as well, which were shaped mainly from Socratic teachings. Many historians credit Perictione for encouraging Plato to permit women to join the school he later founded- the Academy- a unique distinction at the time and acclaimed to date.
Perictione and Socrates
Young Plato, who was already enchanted by Socratic doctrines, began studying under the great thinker. Perictione would visit Socrates often or invite the eccentric teacher to their palatial home in Athens. The two often debated among themselves, their diverse doctrines and thoughts. The renowned ancient Greek historian and chronicler, Diogenes Laertius mentions that Perictione influenced some Socratic thoughts.
A famous Socratic quote: “A system of morality which is based on relative emotional values is a mere illusion, a thoroughly vulgar conception which has nothing sound in it and nothing true,” is said to be inspired by Perictione, who believed that morals based on perceived emotions, are fallacious unless they culminate into befitting action. 
The friendship between Perictione and Socrates thrived over the years. To an extent, Perictione visited Socrates when he was incarcerated on charges of sedition against Athens by turning a blind eye to the atrocities committed by the Thirty Tyrants and openly praising the Spartans- their archenemies. She tried to use the good offices of her husband Pyrilempes to get Socrates condoned and spared of the death sentence.  Perictione also met Socrates on the day he was executed by Hemlock, while some records claim she was present till he breathed his last.

Δευτέρα 24 Απριλίου 2017

School of Pythagoras (6ht-5th century BC)

Themistoclean

Themistoclean was a priestess of Delphi and teacher of Pythagoras.

She managed to instill him  moral principles and values as well as introduced him to the authorities of numbers wisdom and geometry.

Keywords: Priestess of Delphi, mathematicians

Ionia's School (6th-5th century BC)

Polygnotos (Πολυγνώτη)

Polygnotos was student and lover of Thales. According to the author Boethius (5th century AD).

Polygnotos knew many geometric theorems and also she introduced the principle of acrophonic at the symbolism of arithmetic characters.

These symbols are called "Herodianus".  According to Vitruvius, Polygnotos was the first person who wrote and proved that "each registered angle going in semicircle is right".

Geometric Period (11th-8th century BC)

Athena Art - " Goddess of Wisdom Courage & Strength "
Aithra (Αίθρα) 

According to Vitruvius and to the Roman historian Titus Livy (1st century BC).

Theseus' mother, Aethra (10th-9th century BC) taught the children of Triziana accounting (practical arithmetic) that was based on the use of abacus and some symbols, where there was no zero, making the symbolism of the numbers very difficult.

Theano and Golden Phi



Several treaties in math, physics and medicine are attributed to Theano including the one on the Golden Section. 

The number (Φ) PHI, it is a constant proportion — a rectangle with a strange property. If you cut off a square with sides equal to the short side, what's left over is a small rectangle with the same shape as the original one. 


 Ever since Theano, we've looked upon this rectangle as the perfect shape. In nature, the spirals of a mollusk shell and flower petals evolve out of that shape. Architects have based designs on its proportions down through the centuries; it has been used as a mathematical expression of beauty.

Κυριακή 23 Απριλίου 2017

Peaceful Societies



Peaceful societies are contemporary groups of people who effectively foster interpersonal harmony and who rarely permit violence or warfare to interfere with their lives. This website serves to introduce these societies to students, peace activists, scholars and citizens who are interested in the conditions that promote peacefulness. It includes information on the beliefs of these peoples, the ways they maintain their nonviolence, and the factors that challenge their lifestyles.



Seven year old Zapotec boy eating a tortilla in the fields of Oaxaca, Mexico, near the village of La Paz. (D. P. Fry photo collection)

LISTS: A list of peaceful societies is never completely finished or accurate. However, social scientists have convincingly described at least 25 societies around the world in which there is very little internal violence or external warfare. Generalizations are difficult to make accurately, except that most of the time these peaceful societies successfully promote harmony, gentleness, and kindness toward others as much as they devalue conflict, aggressiveness, and violence.

DISCLAIMER: While scholars have clearly identified a small number of societies in which people rarely act aggressively, it must be emphasized that no stamp of approval is intended for the societies included in this website. None of them are utopias. They share many problems with the rest of humanity. That said, however, most of the time they interact in a highly pro-social manner and they successfully avoid both violence within their own societies and warfare with other peoples.

OTHER “PEACEFUL” SOCIETIES: Popular writers and casual observers have also described many other societies as “peaceful,” but often in a more general or romantic sense. This website focuses, instead, on societies where there is significant scholarly literature to support the claims of peacefulness, and where the evidence provided by those scholars appears to be quite convincing.

COMPARISONS: Part of the fascination of this scholarly literature is the way readers can compare the extent of peacefulness and violence in these societies. Their differing ways of developing social, psychological, ethical and religious structures that foster peacefulness should inspire—and challenge—anyone interested in the processes of peace building. This literature suggests several questions:
Why are some societies highly opposed to both aggressive behavior within the community and warfare with external enemies, while most other peoples tolerate or even encourage such violence?
How are these peaceful societies able to maintain their pro-social values and their nonviolence even when challenged by aggressive outside forces?
How do peaceful societies raise their children to support harmonious social interactions, to devalue violence, and to transmit firm commitments to nonviolence to following generations?
What sorts of psychological strategies do they employ to reinforce their values and beliefs in peacefulness?
How do the religions, systems of belief, and worldviews of the peaceful societies foster their nonviolence?

APPROACHES TO PEACEFULNESS: Most of the nonviolent peoples have a wide range of strategies for promoting interpersonal harmony, building mutual respect, and fostering toleration for individual differences. Many of them are masters at devaluing conflicts, minimizing and resolving them when they do occur, and preventing them from developing into violence. Many of these peaceful societies also devalue competition, self-focus, and other ego-centered social behaviors that they feel might lead to violence.

LITERATURE: While the literature about these societies is small in contrast to the vast number of works about violence and war, there are some notable, highly readable books about peaceful societies and some useful websites that describe a few of them. Most of the best literature, however, is available in books, journal articles, and essays contained in published volumes. A small number of the best journal articles and essays from books are included in the Archive of Articles on Peaceful Societies of this website. Three different encyclopedia articles describe peaceful societies and the literature about them (Dentan 2002; Fry 1999; Sponsel 1996).

ADDITIONS: Additions to the website, as well as news about the peaceful societies, are noted on the News and Reviews page.

Πέμπτη 6 Απριλίου 2017

A 2,000-Marble Instrument Sounds Like a Synth for the Apocalypse

With 3,000 moving parts, the Wintergatan Marble Machine is hand-cranked but has the complexity of a synth.



The above video demonstrates a wonderfully complex, programmable wooden machine that uses 2,000 marbles to play a vibraphone, drums, guitar, and more, like a post-apocalyptic approximation of a synthesizer. Swedish musician and inventor Martin Molin, known as "MacGyver" among fans of his old band, Detektivbyrån (The Detective Agency), designed and composed the visionary contraption over the course of 14 months. It's called the Wintergatan Marble Machine, named for both Molin's new band ("Wintergatan," which means "winter street") and the huge subculture of marble machines that inspired his creation.
"Marble machines always make music, but I was thinking maybe I can make a programmable marble machine, that doesn't make chaos but is actually controllable in the sounds it makes," Molin tells WIRED UK. The inner workings of the machine are driven by gears, levers, pulleys, and LEGO Technic parts, comprising a 32-bar loop. As with any computer software, Molin composes for the Wintergatan Marble Machine on a grid, but instead of dragging and dropping samples across a computer screen, he gets to physically format the machine.
Enjoy watching the Wintergatan Marble Machine work in the video below, as it will likely be some time before you'll see anything like it on tour. Molin hopes to use what he learned from the process to make simpler, more portable machines, as this 3,000-part monster must be completely disassembled in order to travel.