Posted in Psychology & Medicine

Priapism

The penis is an interesting organ that has the ability to harden, despite being made of spongy material. Contrary to the popular slang for erection (boner), the (human) penis contains no bone.

Instead, it is made of a pair of cylindrical, spongy tissue called the corpus cavernosa, and a smaller spongy tube that surrounds the urethra called the corpus spongiosum. An erection happens when the body redirects blood flow to fill these spongy tissues, engorging them with blood. As it expands, the corpora become rigid and tense as they are wrapped by a thick, dense tissue called the tunica albuginea. The tension compresses the surrounding veins, trapping the blood and keeping the penis erect. Once stimulation slows and less blood flows into the penis, the blood drains via the venous system and the erection withers.

A common problem with erections is that of erectile dysfunction (unable to become erect or sustain it), which is well-known to the lay person. However, a lesser-known, opposite problem is priapism.

Priapism refers to an erection that will not die down even when the stimulation has ended, or with no stimulation at all. Although this may not sound like a medical problem other than causing embarrassment, priapism can be a very painful condition and depending on the cause, the penis can become starved of fresh blood (ischaemic), resulting in permanent damage to the cells and tissue.

Priapism is named after the Greek god, Priapus. He was a minor god worshipped in rural Asia Minor as a god of fertility, livestock and gardens. Priapus is depicted as having a permanent erection to symbolise fertility, but ironically, was cursed with impotence by Hera while still in the womb. His massive, erect penis was a popular theme for Roman erotic art and can be seen in various pieces of ancient art.

Priapism can arise from various causes such as blood disorders, medications and spinal cord damage. The problem is usually due to blood being trapped in the penis, or the nervous system continuously stimulating blood flow into the penis. As the main issue is engorgement with blood, the acute treatment for priapism involves decompressing the penis by using a needle to aspirate (draw out) blood directly from the corpus cavernosa.

Posted in History & Literature

Rosetta Stone

In 1799, during Napoleon’s campaign in Egypt, a French officer named Pierre-François Bouchard came across a granite slab a couple of miles from a port city named Rosetta. The slab – about 112cm by 75cm in size – was densely filled with ancient inscriptions on one face of it. But strangely, there were three distinct languages written on the slab: Egyptian hieroglyphs, an unknown script and Greek.

The discovery of this stone sparked immediate scientific interest. Up until this point, no scholar had been able to decipher the Egyptian hieroglyphs. The hieroglyphs had not been used formally for almost 1800 years, so the way to read it had been lost to time. Europe was going through an “Egyptomania” at the time, with great interest in this ancient civilisation. However, little was known about the culture as the ancient texts could not be read.

People quickly noted that there was a strong chance that the so-called “Rosetta Stone” contained the same text in three different languages, which meant that if you could translate one of the languages, then you could decipher the alphabet of the other two. This proved to be true, with the text being a royal decree exempting priests from taxation. Numerous scholars from all over Europe pored over the Rosetta Stone to solve the mystery of Egyptian hieroglyphs.

The first step was to translate the Greek version, as ancient Greek had already been studied in depth by scholars.
Around a similar time, a Swedish linguist named Johan David Åkerblad figured out that the middle, unknown script was Demotic, a cursive script used in ancient Egypt. Åkerblad was able to decipher the Demotic alphabet by comparing it to the Greek script, particularly through comparing names, as both languages were largely phonetic, meaning the characters used to write the name will have the same sounds in the two languages.

The final step – deciphering hieroglyphics – proved to be much harder. It was theorised that hieroglyphs were not phonetic, but ideographic, meaning each letter represented a whole word or concept (similar to Chinese) rather than a sound. If this is true, then it is impossible to decipher the hieroglyphic alphabet just by comparing it to the phonetic Demotic and Greek scripts.

But then, one scholar named Silvestre de Sacy realised that foreign names would have been written phonetically, much like Chinese scripts. This allowed him to zero in to Greek names in each script, such as Ptolemaios, thus creating a skeleton for the phonetic alphabet for both  Demotic and hieroglyphs. Scholars could then use the phonetic reading of hieroglyphs to make more headway into reading the Rosetta Stone.

After 20 years of exhausting research, the Rosetta Stone was finally fully deciphered. The Rosetta Stone is famous because it was the key required to decipher the entire Egyptian hieroglyph system, while birthing the new field of Egyptology. Being able to read hieroglyphs allowed us to better understand the ancient Egyptians’ way of life. Nowadays, the term Rosetta Stone is also used as a symbol of a key to understanding an entirely new field of knowledge.

Posted in Science & Nature

Maze

A maze is a puzzle with a simple rule – travel from start to finish. The tricky part is that the path from start to finish is not straightforward, but full of twists and turns. It is usually packed in a compact rectangle or circle, with numerous forks and branches. Because of its simplicity, it has been a popular puzzle for millennia.

Like any puzzle, there are tricks to solving mazes. The most basic, but highly effective rule, is the right-hand rule. This is a form of wall following rule, where you run the maze while tracing the wall your right hand is touching. Keep following a wall with your right hand and you will eventually reach the end. 

The rule works for most simple mazes that are simply-connected, where each wall is connected to the outermost wall. But in some cases, the maze is not simply-connected and you will end up in a loop. In this case, you will eventually end back at the beginning, so you will have to try follow a different wall (i.e. use your left hand instead and see how you go).

One of the most famous mazes in history is the Cretan labyrinth, featured in Greek mythology (likely based on the actual palace of Knossos). The Cretan labyrinth was a cryptic maze within the palace the housed the fearsome minotaur, to whom human sacrifices were sent to be devoured. The minotaur is slain by the hero Theseus, who navigates the labyrinth and safely escapes by using a ball of thread given to him by the princess, Ariadne, as a trace.

Mazes were especially popular amongst nobles in Europe, with many castles featuring hedge mazes as part of their magnificent gardens. It is likely that these mazes were popular not because they offer an intellectual challenge, but because it is an ideal date location

Walking a maze gives you a sense of intimacy, because the paths are narrow and you can only perceive a small space of 10-20 square metres, due to its many-walled nature. You walk side-by-side with each other, while your footsteps echo on the hedges. You have nothing else to distract you other than plain walls and the sky, so you can focus on each other. But most importantly, it provides privacy, by transporting you to a secret, little world of your own.

Posted in History & Literature

Halcyon Days

There is a story in Greek mythology about a woman named Alcyone. Alcyone was married to Ceyx and the two were madly in love with each other. They would go as far as playfully calling each other Zeus and Hera (the king and queen of the gods). When Zeus heard of this, he became infuriated and plotted a way to punish the couple for their sacrilege.

One day, while Ceyx was sailing, Zeus threw a thunderbolt to raise a furious storm. The storm made quick work of Ceyx’s ship and Ceyx sank to the bottom of the sea. With his dying breath, he prayed to the gods to bring his body to the shore so that Alcyone may see him one last time and give him a funeral. The gods took pity and arranged for this to happen.

Meanwhile, Morpheus, god of dreams, appeared before Alcyone in the image of Ceyx, to gently inform her of her husband’s death. Alcyone ran to the shore in grief. There, she found the cold, lifeless body of her beloved husband. The loss of her true love was too much for her to bear. After Ceyx’s funeral, she threw herself in to the sea and drowned, so that she may meet her husband again in the underworld.

The gods, who were admirers of Alcyone and Ceyx’s beautiful love, were deeply saddened by this tragic fate. Zeus decided to atone for his rash actions by transforming the couple into a pair of kingfishers. The two birds lived happily ever after, but found that whenever they tried to lay eggs on the beach during the winter, strong waves would wash them away. Alcyone’s father Aeolus, god of the winds, saw this and calmed the winds for two weeks every winter, so that the couple may lay their eggs and make a nest in peace. Kingfishers have been referred to as halcyons since then.

Nowadays, the term halcyon days refers to a period of peace and calm, particularly during times of hardship.
Perhaps it is an allusion to the fact that we can navigate through any adversity when we are with our loved ones.

Posted in History & Literature

Ides Of March

“Beware the Ides of March”.

This is one of the most famous prophecies in literature (and history). It was said by a soothsayer to the great Julius CaesarDictator Perpetuo (“dictator in perpetuity”).

The Ides of March (Idus Martiae) refer to a date, specifically March 15. The ancient Romans did not number the days of the month but instead referred to three specific dates within a month. The Ides referred to the middle of the month.

The Ides of March have become an infamous date due to an event that changed the course of Roman history – the assassination of Julius Caesar.
Julius Caesar became the sole leader of the Roman Republic after a great civil war. There was much dissent from the senate, who had lost much of their power through Caesar’s uprising. On March 15, 44BC, Brutus (Caesar’s adopted son) and members of the senate conspired to assassinate Caesar to end his rule.

In William Shakespeare’s eponymous play, it is said that Caesar passed the soothsayer who had warned him of this day and said to him: “The Ides of March are come”, mocking the failed prophecy. The seer simply replied: “Aye, Caesar; but not gone.
Not long after, Caesar was ambushed by 60 men led by Brutus and was stabbed multiple times to his death. With his dying breath, he uttered: “Et tu, Brute?” – meaning “You too, Brutus?”, showing his despair at the betrayal by his own son.

The Ides of March was traditionally the date when Romans would settle their debt. Perhaps Brutus, who had actually fought against his father in the civil war but then forgiven by Caesar, chose this date to symbolise settling the political tension of the time – to liberate Rome from Caesar’s monarchy.

Ironically, the assassination triggered a series of events that led to another civil war, ultimately causing the transition from the Roman Republic to the Roman Empire, led by Caesar’s other adopted heir, Octavian (later known as Augustus). Augustus proceeded to round up 300 conspirators complicit in the murder of Caesar and executed them as a tribute to the now deified CaesarDivus Julius.

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Posted in History & Literature

Fortune Telling

Humanity has always been interested in trying to predict the future. Even if the future cannot be changed, we seem to have a primal craving to know something that should not be known. The history of fortune telling can be traced back to ancient times in almost every culture.

The ancient Greeks were particular fans of divination – the art of foreseeing with the inspiration of a god – and the most famous example is of course the Oracle of Delphi. The priestesses of the Temple of Apollo at Delphi were known to give very accurate, yet cryptic, prophecies inspired by Apollo. For example, when Croesus, king of Lydia, consulted the Oracle regarding his invasion of Persia, he was advised: 

“If you cross the river, a great empire will be destroyed”. 

Croesus believed this to mean that he would conquer Persia, but ultimately, the invasion failed and his own empire was destroyed by the Persians instead.

However, as the Oracle of Delphi would only give prophecies on the 7th day of every month, most commoners could not afford to have their fortunes told by them and would instead turn to seers. Seers told fortune through variable method, all with the purpose of interpreting “signs from the gods”. An example would be a haruspicy – divination through the inspection of an animal’s organs, commonly a sacrificed sheep’s liver.

Divination was an important part of Native American cultures. Diviners would use potent hallucinogens to reach an altered state of mind to derive visions. Scrying was also common – the practice of “seeing” the future by using reflections in mirrors or water surfaces.
In ancient China, oracles would read the future by reading the patterns of cracks on a burnt turtle shell (plastromancy). Nostradamus, the famous French seer, would scry the future in a bowl of water. The most classic, stereotypical image of a fortune teller is a gypsy woman gazing into a crystal ball or reading the palm of a person to foresee an individual’s future.

Fortune telling still plays an important role in the modern world, with a significant proportion of people in multiple cultures believing that the future can be predicted by fortune tellers. In the Western world, horoscopes are a common feature of newspapers and astrologists and tarot card readers are frequented by people seeking advice. In countries such as Korea, China and Japan, a significant number of people will seek fortune tellers to see how “well-matched” a couple are before marriage is decided.

There has been zero scientific evidence to suggest that clairvoyance is real. However, perhaps that is not the point of fortune telling. Another name for fortune tellers is soothsayers – perhaps having our fortune told gives us a sense of comfort as it eases our morbid curiosity for what the future holds. The future is an endless sea of possibilities and the realisation that anything could happen can be crippling. So maybe the aim of fortune telling is not to predict the future, but to temporarily treat your fear of the future so that you may live in the present.

Posted in History & Literature

Evolution Of Colour

We often take the beauty of colour for granted. How would you explain the colour red to a blind person? With that in mind, how do we know that the colour we see with our own eyes is the same hue that others see? A scholar by the name of William Gladstone came across a similar question in 1858 while studying ancient Greek literature. He noticed that in most literature of ancient times, the description of colour was wildly inconsistent, such as the sea being described as “wine-dark”, the sky being “copper-coloured” and other oddities such as violet sheep and green honey. After further analysis, Gladstone found that white and black were referenced frequently, while other colours were much rarer, with red, yellow and green being the most common colours respectively.

Another scholar named Lazarus Geiger expanded on Gladstone’s research and found that throughout ancient literature – including the Bible, Hindu poems, ancient Chinese stories and Norse tales – described beautiful scenes while omitting a certain detail: a blue sky. It appeared that the colour “blue” did not appear in most languages until a certain point in time, despite the people having lived under the same blue sky that we do now.

Geiger tracked the appearance of different colours in different languages and found a pattern of development. Each language would typically describe white (light) and black (dark) first. The next colour to develop was red, then yellow and green, with blue being one of the last colours to appear. This is likely related to the abundance of each colour (e.g. blood, dirt, vegetation) and the ease of making coloured dye (blue dye is notoriously difficult to make).

This raises an interesting question: if the ancient Greeks did not have a word for the colour blue, could they still perceive the colour blue? Biologically speaking, our eyes are not so different to that of the ancient Greeks. But of course vision is a two-part processyour eye captures the image and then your brain processes the image. Does language have a significant enough impact on how we perceive our world?

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There is a tribe in Namibia whose language does not distinguish blue and green. A study was held where people from this tribe were shown a circle of 12 squares – 11 green and 1 blue. To the researcher’s intrigue, the men and women of the Himba tribe could not tell which square was the odd one out – suggesting that their brain was processing the two colours as identical. However, the Himba language has more words distinguishing shades of green than English. In another study involving a circle of green squares with one square being a slightly different shade of green, the Himba tribe could pick out the different square much more easily than English-speakers.

The so-called “colour debate” is a hotly debated topic, with some arguing that language plays a crucial role in determining our perception of the world, while others state that language is separate to our senses. What did the ancient Greeks see when they gazed up into the sky? If we cannot describe something with words, then does it truly exist? But one thing is clear – things are not always as they seem.

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Posted in History & Literature

Your Other Half

According to Greek mythology, humans were originally created with four arms, four legs and a head with two faces. The humans at this time were complete. They felt as if nothing could harm them and that they could conquer the gods. Zeus feared the humans’ power and split them into two separate parts to create humans as they are now. Two arms, two legs, one face, half a soul.

Thanks to Zeus, all human beings are condemned to spend the rest of their lives in search of their other halves. When one of them meets the other half – that is, the other half of his or her original self – the pair are lost in an amazement of love and friendship and intimacy. There is an unspoken understanding of one another – an unexplainable longing and attraction for each other. One will not be out of the other’s sight, even for a moment. The two continuously yearn for each other and strive to be together until they are finally united.

Love is simply the name for our pursuit of wholeness, for our desire to be complete. It tries to make one out of two and heal the wound of human nature.

1 + 1 = 3

(inspiration from The Symposium by Plato)

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(and here’s a sweet illustration of the myth http://imgur.com/gallery/H0f1u)

Posted in History & Literature

Marathon

In 490BC, The Greek city states were hard at war with the almighty Persian Empire. One well-known battle (out of many) is the Battle of Marathon, fought between about 10,000 Athenian soldiers (with some Plataean reinforcements) versus 26,000 Persian soldiers. Despite the Persians having superior numbers and cavalry, the battle concluded with a decisive victory to Athens thanks to a well-implemented flanking strategy and the temporary absence of the Persian cavalry at the base camp. The battle was a turning point in the First Greco-Persian War and the crushing defeat drove the Persian invasion force off Greek lands for ten years.

The popular story goes that a runner named Pheidippides was sent from Marathon to Athens after the battle to bring the good news, as the people of Athens were still gripped in fear that the Persians would directly strike the city soon. It is said that Pheidippides ran a distance of about 40 kilometres back to Athens and on arrival cried out “We have won!”, then collapsed and died from exhaustion.
When the modern Olympics was being designed at the late 19th century, the organisers decided to use this story to inspire what we now call the marathon – a 42.195km endurance run. The story was to recall the glory of ancient Greece and the heroic act of Pheidippides (also referred as Philippides in some texts).

Unfortunately, the story is a romantic amalgamation of two separate stories. But then again, the actual story is just as incredible.
Despite the decisive Athenian victory at the Battle of Marathon, the war still raged on and the Persians changed directions and headed for Athens instead. The Athenian army marched swiftly back home to pre-empt the Persian landing force. They marched 40km within a day – an amazing feat considering the fact that they just fought a massive battle and were armoured from head to toe.
The runner, Pheidippides, actually ran a distance of 225 kilometres from Athens to Sparta seeking reinforcements before the Persian army landed in Marathon (i.e. before the Battle of Marathon). He then ran back to Athens, meaning he ran roughly 450~500km within a few days. There is not much historical evidence of whether he actually ran this far in such short time but there are some anecdotal recordings.

The world record for the fastest marathon is 2 hours 3 minutes 23 seconds (as of 2014) by Wilson Kipsang of Kenya. The world record for the longest marathon ever run is set by Shiso Kanakuri, who started the marathon on July 14, 1912, during which collapsed from heat exhaustion around the 27km mark. He had to withdraw from the race, but could not bear with his “failure” all throughout his life. In 1967, he challenged himself again at the age of 75 to finish the remaining 15km, eventually setting the record time for the longest marathon ever run – 54 years, 8 months, 6 days, 5 hours, 32 minutes and 20.3 seconds.

Posted in Psychology & Medicine

Mithridatism

Mithridates VI, the King of Pontus (ancient Greek/Persian state located in modern day Turkey), had a paranoia that there were people who wanted to assassinate him through poison. This likely stemmed from his father being poisoned by his mother (reportedly), who favoured his brother over Mithridates as the heir to the throne. He noticed in his youth that the meals brought to him induced stomach pains. He connected the dots and deduced that his mother was trying to poison him slowly so that his brother would become the next king. He fled to the wilderness and devised a plan to protect himself. It is said that he began taking a concoction of various poisons in non-lethal doses every day, to develop an immunity to the most common poisons available during his time. This led to the idea of mithridatism – the gradual self-administration of non-lethal doses of poison to develop immunity. Ironically, Mithridates’ plan backfired eventually when he attempted suicide by poison after a massive defeat against Rome. He found that the poison had no effect on him and had to request his bodyguard to kill him by sword.

Mithridatism has been recorded or suspected in various times of history. Indian epics tell the story of the king Chandragupta Maurya – the first king to unite India – who selected a group of beautiful girls and raised them in the palace. He gave the order to administer small amounts of poison to these girls as they grew up, making them invulnerable to toxins. He called these girls vishakanyas (poison maiden) and believed that they could be used as assassins who could kill men through the act of sex.
There are suggestions that Rasputin was also a practitioner of mithridatism and that this was why he survived an assassination attempt involving poison, but there is not much evidence for this.
The practice of mithridatism is also mentioned in various fictions, such as The Count of Monte Cristo and The Princess Bride.

The concept of taking small doses of something to build up an immunity is still used in modern medicine. Desensitisation therapy is used to treat certain allergies, by exposing the body to small doses of the allergen. It is well-known that alcoholics and drug addicts required more substance to achieve the same effect as most people because they develop tolerance to it. There is some evidence that mithridatism is an effective way to build immunity to venomous snake bites.
However, not all poisonings can be avoided with mithridatism. Poisons such as cyanide pass through the system too quickly to create any tolerance, while heavy metals simply build up in the body to create a toxic effect after a history of exposure.