Tag: history

Posted in Science & Nature

Shrew

Posted on by Jinavie

A shrew is a small rodent, similar in size to a rat, that has many fascinating characteristics.

Funnily enough, this animal has a notorious name in history. Ancient Egyptians considered shrews the spirits of darkness and the English believed that if a shrew ran over a lying animal, the animal would suffer great pain. The name shrew comes from the Middle Age English word shrewe, which meant “evil” or “scolding person”.
This is probably attributable to the putrid smell a shrew makes when threatened, and its poisonous bite.

Despite its tiny figure, the shrew has the greatest surface-area-to-weight ratio out of any mammal on the face of the Earth. Because of this, they also have a high heat expenditure, meaning they have to eat constantly to replenish the energy. This means that they sometimes die from starvation during prolonged naps.
Also, they have an extremely high heart rate, averaging about 700 beats per minute. When they are frightened, the heart rate can spike leading to cardiac arrest. For example, shrews are known to die from being frightened by the sound of thunder.

An animal that dies if it naps too much or when thunder strikes – the shrew is a very sad animal.

Posted in Philosophy

Power Of The Mind

Posted on by Jinavie

There once lived a Buddhist monk by the name of Great Master Wonhyo(원효대사) in the kingdom of Silla (during the Three Kingdoms period of Korea). At the age of 45, he set out to the country of Tang (modern day China) to further his understanding of Buddhism. During his travel, he decided to rest in front of a grave when night fell. In the middle of the night, he woke up feeling thirsty and searched for a drink. He found a bowl full of water in the complete darkness and drank it quickly to quench his thirst. He thought to himself “How lucky I am, to find a bowl of such sweet water.” and went back to sleep.

When morning came, he checked to see if there was still water in the bowl. He then realised that the bowl was actually a skull, and that the water was stagnant, putrid water that had collected in it. Realising that he drank the vile liquid from the skull, the monk started throwing up. But then, he realised that in the darkness, he drank from the skull with no problem, and even thought that the drink was sweet and refreshing. To quote:

Objects and rules are only born from the mind; a dead mind is no better than a skull. Buddha’s Three Commandments originate from the mind, everything is born from knowledge. What could I ask for more when I have a mind?

Thus, the Great Master Wonhyo understood the way of Ilche Yushimjo (일체유심조/一切唯心造/“The mind is the origin of everything” – the key principle of Hwaumgyung, an important Buddhist text). He turned back and returned to Silla, where he devoted his life to spreading Buddhism to the people.

Any sadness or frustration can be dissipated if you look back on it. Depending on how you see the world, it can be either beautiful or tragic.

Posted in History & Literature

Population

Posted on by Jinavie

The following is a list, based on 2011 standards (world population 6.9 billion), of the most populous countries in the world:

  1. China (1.3 billion)
  2. India (1.2 billion)
  3. United States of America (311 million)
  4. Indonesia (238 million)
  5. Brazil (191 million)
  6. Pakistan (176 million)
  7. Nigeria (158 million)
  8. Bangladesh (151 million)
  9. Russia (143 million)
  10. Japan (128 million)

Posted in Science & Nature

Soul

Posted on by Jinavie

In 1907, a physician called Duncan MacDougall tried to scientifically prove the existence of the human soul. He weighed patients dying from tuberculosis at the time of death and studied the change in body mass. After observing the death of six patients, he noted that the body mass lightens at the time of death, which he attributed to the soul leaving the dead body. He published the official average mass of the soul as 21 grams.

Unfortunately, this experiment was complete nonsense. MacDougall failed to use the scientific method. The tiny sample size of six patients, the broad range of weight loss (21 was an arbitrary number he chose and was not even the proper mean mass) and the lack of control in the study environment are some of the major flaws of the experiment procedure. In fact, it is more likely the change in body mass was due to the many changes that occur post-mortem. For example, the lungs recoil and breathe out air, moisture escapes the body and as the sphincters relax, excrements are expelled.

Many people still believe the urban myth that the soul has an objective weight of 21 grams (possibly augmented by the movie 21 grams). Another interesting fact is that MacDougall also experimented on dogs (except instead of using dying dogs, he killed them himself). He found that dogs lose no weight when dying and thus claimed that dogs have no soul.

image

(Source: http://ericana.deviantart.com/art/Soul-Meets-Body-80831167?q=boost%3Apopular%20soul%20%20body%20-eater&qo=5)

Posted in History & Literature

Pakistan

Posted on by Jinavie

Pakistan is a country founded in 1933 and is located west of India and China. It formed from the unification of some of the upper regions of India, where the ruling power of Britain had weakened from Gandhi’s independence movements (in fact, Pakistan was still under British rule until 1947 when it gained independence). The people in this area were mostly Muslim and Pakistan was formed amid fears that the Muslim would be neglected in politics by Hindus.

The etymology of the country’s name is quite peculiar. Pakistan is an acronym of the five regions that formed it: Punjab (P), Afghan (A), Kashmir (K), Sind (S), and Baluchistan (TAN), combined with I for Islam. Also, the word “Pakistan” is a portmanteau of Pak, which means “clean/pure” in Hindustani, and –stan, which stands for a country in Turkish.

Interestingly, the word Pakistan was devised by British students at Cambridge University.

Posted in History & Literature

War Of The Currents

Posted on by Jinavie

In the late 1880s, a war raged on in the United States – one that is not commonly known by the public. It was a war between two wizards: Nikola “The Wizard of the West” Tesla and Thomas “The Wizard of Menlo Park” Edison.
This war involved no guns or explosives, but centred on something so commonplace that people take it for granted nowadays – electricity. The two scientists/wizards fought to determine whose form of electricity transmission was better.

There are two types of electric currents used for transmission.
Direct current (DC) was used by Thomas Edison, a pioneer of electricity distribution. Before him, electricity was more of a scientific curiosity and was not widely available to the public. DC is a unidirectional flow of electric charge.
Alternating current (AC) was later developed by Nikola Tesla, also a pioneer in the field of electricity. AC is the alternating movement of electric charge as it periodically reverses direction from + to -.

When electricity first became public, the industry standard was DC, as Edison started his company, General Electric. This was incredibly profitable for Edison, whose inventions relied on the usage of DC. For example, his incandescent light bulb was the principal electrical device during the time. Edison further advanced DC technology and heavily advocated it.
Tesla claimed that AC was a much more efficient mode of electricity transmission and tried to convince Edison while working for him. However, Edison ignored him and stated that it was an insane, useless idea. Edison was more an inventor than a mathematician, so he did not understand the theoretical benefits of AC over DC.

AC has the advantage of being able to use a transformer to gain much higher voltage than DC, while losing less power when transmitted. It also allowed easy conversion from low-voltage use, such as lamps, to high-voltage use, such as motors.
Despite this, Edison refused to accept the system and continued to lobby against it. The most famous case is his drastic attempt to defame AC by showing the public how “dangerous” it is.

In 1890, Edison and his company developed the electric chair, which used AC to demonstrate the safety hazards of Tesla’s invention. He did this by arranging the first capital punishment by electrocution. Unfortunately, due to calculation errors, the first shock was insufficient to kill the convict, William Kemmler. The procedure was repeated for 8 minutes, during which the convict was screaming in agony, seizing due to electrocution, and at one point, caught fire. This horrible image is portrayed quite accurately in the film The Green Mile.

Despite this unpleasant event, AC became the standard over time and DC is now only used in labs on certain special applications. Also, the electric chair was adopted as an official method of execution.

Posted in History & Literature

Black Death

Posted on by Jinavie

This disease, also known as Pest or the bubonic plague, was a vicious infectious disease that decimated medieval Europe. It is caused by the bacteria Yersinia pestis, usually transmitted by fleas. The symptoms vary from high fever, malaise, nausea and vomiting, headaches, muscle cramps, seizures, red rashes, coughing and swollen lymph nodes, and causes death within four or five days without treatment.
People did not know about the existence of bacteria back then (it would be 200 more years until Louis Pasteur would suggest germs as the cause of infections). Back then, they considered diseases to transmit through miasma, or bad air. Also, they believed that to prevent transmission, they required a stronger smell to counter it.

Plague doctors, who treated according to the miasma theory of disease, wore a special set of equipments that were known as beak doctor costumes. They wore an overcoat, hat, gloves and boots made from waxed leather, carried a cane to assess the patient and point things out, and a peculiar mask. The mask had a long beak like a bird’s, giving the doctors the nickname beak doctors. The masks had round, glass windows to see through, and two small nostrils at the end of the beak.

Why did they wear this strange mask? The beak was hollow and doctors filled it with flowers, herbs, vinegar and incense that produce a strong smell, so as to “purify” the air coming through the nostrils. 
Although the miasma theory has been falsified by germ theory, this gear was the first hazmat suit in history.

There is another fascinating fact regarding the Plague, miasma theory and beak doctors. It regards the nursery rhyme, Ring a Ring o’ Roses:

Ring-a-ring-a-roses,
A pocket full of posies; 
Atishoo! Atishoo! 
We all fall down. 

This nursery rhyme actually describes the Plague. The ring of roses refers to the red rashes and swelling of lymph nodes – a symptom of the Plague; the posies were herbs used to counter the miasma; coughing and sneezing were end-stage symptoms before death, which is shown in the final line. 

Posted in History & Literature

En Passant

Posted on by Jinavie

In chess, there are three special moves: castling, pawn promotion and en passant. The first two are quite well known, but the third is less recognised by amateurs and is more of a “secret move” for more experienced players. Thus, many beginners complain their opponent is cheating, when they are using a perfectly legal move.

En passant is French for in passing – the etymology becomes clear once one understands how the move works.
Although a pawn can usually only move one space forwards, it can move up to two spaces on its first move. En passant only applies to a pawn that has moved two spaces. For example, if a white pawn moves two spaces forward and a black pawn is positioned to its left or right, the black pawn can move diagonally behind the white pawn to take it. This is because if the white pawn had moved one space, it would have been in the normal attacking range of the black pawn. Ergo, en passant is a technique that can stop a pawn from penetrating the defensive line and charging forwards.

This move must be used the turn after the pawn moves two spaces. Otherwise, the right to en passant disappears (i.e. cannot wait a turn to use it). In chess, this is the only move where the attacking piece lands on a space other than the taken piece.

Why was the en passant created? The reason being, the two-space first move rule came into place around then, so the en passant was devised to balance it, while complementing the pawn’s short attack range and inability to move backwards.

(Source: http://verlassen232.deviantart.com/art/en-passant-184741920?q=boost%3Apopular%20en%20passant%20chess&qo=8)

Posted in History & Literature

Electrical Appliances

Posted on by Jinavie

The following are the first five domestic appliances to be electrified:

  1. Sewing machine
  2. Fan
  3. Kettle
  4. Toaster
  5. Vibrator

The vibrator was electrified a decade before the vacuum cleaner or the iron.

Posted in Psychology & Medicine

Madness

Posted on by Jinavie

“As mad as a hatter” – this is a well-known English idiom, particularly famous after Lewis Carroll created the Mad Hatter character in his work Alice in Wonderland. However, what is less known is the fact that this idiom is based on actual events.

In the 18th and 19th centuries, hatters used mercury to treat felt (traditionally made from rabbit fur or the more luxurious beaver fur). Unfortunately, mercury is a highly toxic heavy metal, which causes severe damage in the human body. In the case of mercury poisoning (also known as Minamata disease or the Mad Hatter disease), it infiltrates neurons to cause severe neurological symptoms. For example, it can impair vision and hearing, cause paresthesia (pins and needles), anxiety, depression, tremors and hallucinations. The famous physicist, Isaac Newton, also suffered from Mad Hatter disease.

Another mad character from Alice in Wonderland is the March Hare. As one may deduce from his name, he is modelled after a normal hare. The reason why the March Hare is mad is that March is around the time when rabbits enter their mating season, and male hares are in heat. They then have only one thing in mind: sex. 

Maybe, as the Cheshire Cat explains, “we’re all mad down here”.

image