Posted in Science & Nature

A Beautiful City

What makes a city or town aesthetically pleasing? Places such as Prague, Florence and Santorini are famous for their picturesque cityscape. Instead of specific famous buildings or tourist spots, postcards from these areas could just show any part of the city and they would still be beautiful. What sets these places apart? How is it that despite all our technological development, modern cities can’t compare to the beauty of cities that are hundreds or thousands of years old?

Korean architect Yoo Hyun-Joon proposes a theory regarding two factors: material and shape. Consider the following matrix using the two:

Out of these four, the combination that we find the most beautiful is when a city has simple materials but complex shape. For example, Santorini is made only of stone buildings painted white and blue. But because it is built on a volcano, the ground is uneven and the building shapes differ to accommodate for this. Florence is almost entirely made of bricks. Traditional Korean houses were made only of wood. This is because in the old days, due to labour costs and poor logistics, cities were usually built with materials abundant in the surrounding area. Instead of varying materials, architects would challenge the limit of materials with varied shapes.

Nowadays, thanks to trade and globalisation, it is much easier to obtain materials from all over the world such as glass, concrete and steel. Furthermore, we can use industrial vehicles to change the terrain to flatten the ground and we use tall rectangular buildings to maximise space. Thus, we end up with the ugly, chaotic combination of many materials and simple shape.

The solution to making a beautiful city is simple then – create a building restriction that unifies the building material to one. A good example is Newbury Street in Boston, USA. This shopping district is famous for its classy red brick appearance, thanks to a building restriction that ensures every new shop built on the street must have the side of the building facing the street built using red bricks.

Of course, just unifying the building material to any one thing does not solve the issue. For example, cities made of only concrete rarely are as appealing. What is important is to use local materials that best represent the context of the city and the land it was built on.

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

Witching Hour

European folklore state that supernatural and paranormal events, such as ghost sightings, tend to occur around the hour between 3am and 4am in the morning. It was believed that if you wake in the middle of the night around 3am, it was because you were visited by the devil. Women were even persecuted as witches if they were found outside during this ungodly hour.

There are many theories behind why the so-called Witching Hour became so infamous. Many involve religious notes, such as the fact that the Bible states that Jesus died at 3pm, therefore the inverse of the time is considered evil. Some say that the devil plays mockery to the Holy Trinity by using the number “3” as part of its acts of desecration. It is also a time when there are no prayers in the canonical hours, therefore evil spirits supposedly run rampant unchecked.

Scientifically speaking, when we wake in the middle of night then fall back asleep, we are more likely to enter a hypnagogic state – the state immediately before you fall asleep where your subconscious mind starts to take over. This can lead to sleep paralysis, which is commonly associated with horrific hallucinations, such as visions of monsters and ghouls. You may even experience a lucid dream, where you are aware within a dream, so you can have vivid memories of imaginary scenes. This may explain why people have such vivid memories of supernatural experiences.

3am is roughly the time of night when melatonin levels are highest, as it is normally when the body is in deep sleep. If you happen to be awake at this time, you may feel exhausted to the point of feeling delirious, as anyone who has done an all-nighter or a night shift could tell you.

From a historical point of view, before the advent of electric lights, it was common to go to bed early in the evening, wake in the night for an hour or two, then go back to sleep until the morning. This hour was used for prayers, writing down creative ideas, interpreting dreams, and of course, sex. Maybe this was also the hour when some people would be out and about for unlawful deeds, such as burglary. These sneaky burglars may have been misinterpreted as ghosts by anyone awake at the same time.

Whether you are superstitious or not, the Witching Hour is an interesting time as you know that everyone around you are asleep. There is no one to talk to. At this edge of tomorrow, you are left alone in tranquil darkness with your thoughts, feelings and worries.

Perhaps the things that go bump in the night during the Witching Hour are not eldritch horrors, but your own fears and anxieties rearing their ugly heads.

(Image source: http://explosm.net/comics/4086/)

Posted in History & Literature

Night Vision

During World War II, the British Royal Air Force boasted an impressive accuracy in intercepting Nazi German bombers despite the cover of darkness at night. The British air ministry reported that their fighter pilots ate a large amount of carrots to boost their night vision. Since then, it has become public knowledge that carrots help you see better in the dark.

Unfortunately, this is false. The British air force were not actually using carrots to help see better in the dark; they were using a revolutionary new technology called radar to spot enemy war planes from a far distance. The carrot propaganda was spread to hide this fact from the Germans.

The carrot myth sounds plausible as carrots contain a large amount of beta-carotene, which is converted into vitamin A in the body. Vitamin A is a key chemical required for vision, in the form of retinal. It is true that vitamin A deficiency can cause night blindness. However, the dose of vitamin A required to improve your night vision is so high that it cannot be achieved by simply eating a lot of carrots.

Posted in History & Literature

Bowdlerisation

Thomas Bowdler was a physician who lived in the 18th century. He had fond memories of childhood when his father would read him works by Shakespeare. He only realised as an adult that his father had omitted or changed certain parts of stories to make it more “family friendly”. Inspired by this, he created the The Family Shakespeare – an edited version of Shakespeare’s greatest works made appropriate for even children to read.

Examples of changes made include changing exclamations that may be seen as blasphemous, such as “God”, into “heavens”. One interesting example is that the scene in Hamlet where Ophelia dies is portrayed as an accidental drowning, whereas the original alludes to her intending suicide. Some changes were even more dramatic, such as the complete cutting of story arcs involving a prostitute in Henry IV.

Since then, the act of editing something to make it more “appropriate” for a wider audience has been known as bowdlerisation. Although many may see bowdlerising as political correctness, Bowdler’s intentions were to make great works of literature such as Shakespeare more accessible to a broader audience, such as to children.

Posted in History & Literature

Christmas Spirit

World War One, also called The Great War, is notorious for the horrors endured by soldiers and civilians during the four-year period. One of the horrors was trench warfare – a new type of battle where two armies would dig into trenches stand-off across a No Man’s Land. It was a particularly terrible experience due to constant PTSD-inducing artillery barrages, extremely unsanitary living conditions and the looming shadow of death that clouded the skies.

But even within these terrible times, the light of humanity shone through. In December 1914, the German army was facing off the French and British army along the Western Front. In the week leading up to Christmas, there were increasing reports of strange behaviour among troops from both sides: fraternisation.

It began with music and light. Many British soldiers reported seeing bright coloured lights from the German lines on Christmas Eve. They heard choruses of Germans singing carols, with not a gunshot to hear. The British and French forces joined in quickly and suddenly, the soldiers were all enjoying Christmas Eve. They were in an informal ceasefire.

Little by little, the two sides made contact on Christmas Day. Not with shots, but with greetings. They would compliment each other’s singing and make jokes across the ditch. Then, some fearless soldiers would cross No Man’s Land to meet their new friends face-to-face. It took a bit of time, but trust developed and soldiers would pop out of their holes without fear of being killed. The language barrier could not stop the fraternisation. Soldiers would make gestures at each other, exchange gifts such as smokes and chocolates and even challenged each other to a football match.
On Christmas Day, 1914, man’s love for each other won over the horrors of war, bringing the first period of peace since the Great War began. It was a Christmas miracle.

Of course, fraternisation with the enemy is far from desirable to a military commander. What man would want to shoot someone they just had a great game of soccer with? Killing only becomes possible when the victim has been dehumanised. This was the last Christmas Truce of the war, as commanders of both sides outlawed any fraternisation with the enemy.

Despite this, there are countless stories from the war where soldiers would show mercy to their enemies, reminding us how even during the darkest times of history, kindness and love exist.

Posted in Philosophy

Anthroponuclear Multiple Worlds Theory

A famous theory in philosophy is the anthropic principle, which argues that the reason the various physical constants and laws of nature are consistent with an environment that can support life is because if life were impossible, no life would be able to observe the universe. Simply put, it argues that the reason the universe seems so improbably perfectly tuned for us to exist in it, is that we exist to observe it.

What if we applied a similar theory to modern world history? Since the advent of nuclear weapons, we now have the capability of destroying human civilisation with the push of a button. There have been so many incidents in the past century where international tensions and mistakes have nearly resulted in thermonuclear war, such as during the Cuban Missile Crisis. However, through improbable coincidences (and the moral fibre of certain heroes), we continue to live on as a species.

But perhaps history only seems so full of coincidences because we are still alive to study it. For our reality to exist, human beings have had to resist the urge to annihilate themselves. Ergo, the longer we live through the Atomic Age, the stranger our reality becomes, as otherwise we would have been wiped out. Zach Weinersmith calls this the anthroponuclear multiple worlds theory.

So perhaps this explains why we are seeing crazier and crazier stories on the news as of late. As in any other sensible timeline, we would all be dead.

(Sourcehttp://smbc-comics.com/index.php?id=3994)

Posted in History & Literature

Factoid

Factoids are commonly known as trivial tidbits of knowledge and fact. This is actually incorrect. Factoids actually mean pieces of false information that have circulated and become popular to the point that they are accepted as facts. This makes factoids ironic in the sense that the definition of a factoid itself, is a factoid.

Here are several examples of common factoids.

Vikings wore horns on their helmets”. 

There is no evidence of this ever happening and all Viking helmets found in archaeology are hornless. It is likely a myth originating from dramatisation of the Vikings in opera.

“Medieval people thought the Earth was flat”.

It has been common knowledge that the Earth is spherical even since ancient Greek times. Greek astronomer Eratosthenes even calculated the Earth’s circumference to within 5-15% error margin of the actual circumference in 240BC.

“Napoleon Bonaparte was short”.

Napoleon’s height was recorded as 5 feet 2 inches, but this is in fact French feet. This converts to 5 feet 7 inches, which is taller than the average height for French males at the time.

“The low life expectancy in the Middle Ages meant people usually died around their 30’s”. 

The low life expectancy of the past was mostly due to the high infant mortality, meaning people who survived into adulthood lived much longer, fuller lives.

“You need to drink eight glasses of water to stay healthy”. 

There is no agreed upon amount of water a person should drink in medical literature. The current consensus is that drinking water when you feel thirsty is fully sufficient to avoid dehydration.

“Carrots help you see in the dark”.

Vitamin A is indeed used by the body to synthesise chemicals used in vision, but having more does not improve your vision. This was a myth propagated by Great Britain during World War 2 to mask the fact that they were using radar for accurate nighttime bombings.

“Evolution is a theory, meaning there is insufficient evidence to confirm it”. 

This is a complete misunderstanding shared by many people against evolution. The word “theory” in science means a concept or set of principles that best explains an observed phenomena, not a hunch as it is often used in common English. For example, gravity is a theory, as well as germ theory (that microorganisms cause infectious diseases).

“Chameleons can change the colour of their skin to match their surroundings”.

Chameleon’s skin colours change based on their mood, not the colour of their surroundings. Cuttlefish, on the other hand, can perfectly mimic and blend in to their surrounding environment.

“Adding oil when boiling pasta stops sticking”.

The oil floats to the top and does nothing to prevent sticking. Adding oil after draining the water will help.

“Searing meat seals in the juices”.

Searing can actually make meat drier on average. It does, however, add more flavour by adding a brown crust due to the Maillard reaction.

image
Posted in Science & Nature

The Dangerous Number

Everyone has learned of the Pythagorean theorem in maths class:

In a right triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides (a² + b² = c²).

image

A lesser known fact is that Pythagoras, the Greek mathematician who came up with the theorem, had a school where numbers were essentially worshipped. The school of Pythagoras were obsessed with whole numbers and their ratios, believing the universe was built around whole numbers. Their motto was “All is number”.

In 520BC, a mathematician named Hippasus was murdered by members of the school of Pythagoras, by being thrown off the side of a ship. Why did a group of scholars go as far as killing a fellow mathematician? The reason lies in a special number.

Hippasus raised an interesting question regarding the Pythagorean theorem. Imagine a square where each side is 1 unit long. What is the length of the diagonal?

image

Using the theorem a² + b² = c²: 1² + 1² = 2 = c². Ergo, c = √2. This does not appear to be so controversial. The Pythagoreans would reason that it was simply a ratio between two whole numbers, much like ½ or ¾.

But as they tried to quantify what this ratio was, a horrifying truth emerged – no ratio between whole numbers could produce √2. It is what we now call an irrational number.

This was heresy – how can such a number exist in a universe built around whole numbers? The Pythagoreans would not allow this. Hippasus tried to argue that √2 was just as real a number as any other, but his attempts to propagate the knowledge of irrational numbers was quashed through murder.

Knowledge is power, but knowledge can also lead to tragedy.

image
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.

image