Tag: ocean

Posted in Science & Nature

The Loneliest Whale

Posted on by Jinavie

In 1989, an array of US Navy hydrophones (underwater microphones) in the North Pacific Ocean discovered a peculiar sound. It sounded very similar to a typical whale song, but there was a crucial difference. Most whales sing at about 10-40Hz, which is a very low frequency sound. However, this specific whale song played at 52Hz – significantly higher than other whale songs.

Bill Watkins was a scientist who became fascinated by this sound. He detected the same sound year after year for over a decade and recognised that it was coming from the same whale. It followed seasonal migration patterns and the song had definite, common features of whale songs. But this song was higher pitch than every other whale he compared it to.

This whale has since been called the “52-hertz whale”, also known as “the world’s loneliest whale”. There have been no other recordings of whale songs like it. There are many theories about what kind of whale it might be, with the leading theory being that it is a hybrid of a blue whale and a fin whale. Because hybrid animals (crossbreeds) have different body morphologies to the parent species, theoretically it could produce a unique sound.

Whales sing to communicate with each other. In the vast ocean, sight becomes easily obscured, but the low-pitched vocalisations of whales can carry on for hundreds of miles. This raises the question of whether the 52-hertz whale’s calls are heard by other whales, given that it is talking in a different frequency range. If they can’t, there is a chance that this whale is calling out into the void, only to be ignored by every other whale. It might have been swimming alone for decades, in search of a partner who can communicate with it.

In some ways, we are all somewhat like the 52-hertz whale. Because we are all unique individuals, even when we talk in the same language, we often misinterpret each other or fail to make a connection because we cannot understand their way of thinking. This is why when you meet someone who thinks on a similar frequency to you, it is a connection worth holding on to. There is no greater thrill than meeting another soul who you can say one thing to and they will understand ten things.

These are the kinds of relationships you should treasure, because for all you know, you may end up like the 52-hertz whale – drifting along the deep blue ocean, desperately calling out in hopes of hearing any kind of reply.

(Image source: https://kaanbagci.deviantart.com/art/52-hertz-whale-445744029)

Posted in Science & Nature

Wave

Posted on by Jinavie

One of the joys of going to a beach is listening to the breaking of waves. Waves are typically associated with the ocean, but can also form on lakes, rivers, canals or any body of water with a free surface. 

Waves are caused by wind blowing over the water surface, dragging it in a certain direction. As the wind only affects the surface, the water below rises to fill the space, causing a circular movement. This appears as a wave on the surface. The faster the wind blows, the more the surface is shifted and the bigger the waves become. Other factors that determine the wave size are: water depth, distance of water that the wind blows over (fetch), the width of the area of the fetch and the duration the wind blows over the area. Because of these factors, some lakes may be as wavy as the sea while others are completely tepid.

The waves formed by the wind merge to form bigger waves in the ocean. The resulting wave is known as a swell. When the swell reaches the shore, the depth of the water reduces, causing the wave to rise in height and become steeper. If the wave is high enough, the base becomes unstable and the wave collapses, which is what causes waves to break.

Although it sounds like a simple process, the consequences can be deadly. Wind waves can reach heights above 30m given that the conditions are right (usually during extremely serious storms). Such a wave can flip a cruise ship with ease like a rubber toy.

Posted in History & Literature

Mary Celeste

Posted on by Jinavie

In 1872, a ship by the name of Mary Celeste was spotted off the Azores in the Atlantic Ocean – completely intact and undisturbed aside from its missing crew. Not a single person, alive or dead, could be found, despite everyone’s personal belongings still sitting undisturbed where they had been left. Even little things such as valuables and piano music were right where they should have been. It was as if its crew had simply evaporated. There were no signs of a struggle and no cargo was missing. To this day, the case of the disappearing crew of the merchant ship Mary Celeste is one of the most famous maritime mysteries in history.

So what happened to the ship’s crew? Historians have been trying to figure out their fate for decades, but the question was finally solved by scientists. One fact that is known about the Mary Celeste is that of its cargo of 1701 barrels of alcohol, 9 were empty. Although an obvious answer is that the sailors went overboard with a party, the truth is even more spectacular. In 2006, Dr. Andrea Sella, a professor of chemistry at University College London, created a replica of the Mary Celeste’s hold to find out how to create an explosion without leaving a trace of fire. He simulated a leak of the ship’s nine barrels of alcohol and found that once the vapour was ignited, say by a pipe or a spark, it created a pressure-wave type of explosion. There was a spectacular wave of flame but, behind it was relatively cool air. No soot was left behind and there was no burning or scorching.

Ergo, the mystery of the Mary Celeste is most likely as follows: there was a leak of the alcohol, the vapour of which fuelled a massive ghost explosion that swept through the ship. The sailors, completely unscathed but utterly horrified, would have piled into the ship’s lifeboat without any useful things like food or water, eventually sinking or dying of thirst and exposure. The Mary Celeste would have still looked perfectly fine as it drifted the vast ocean, all by itself.

Posted in History & Literature

Zodiac: Taurus

Posted on by Jinavie

Taurus is the Zodiac sign for those born between April 21 and May 20. The symbol for Taurus is a giant ox.

The model for Taurus is none other than the king of gods, Zeus. Zeus often came down to the human world for fun, but one day he set his eyes on a beautiful princess by the name of Europa. Europa often played on the farm with the herd of cows. Zeus fell head over heels for her and plotted how he could profess his love to her (alternatively, rape her). He decided to transform into an ox and hid among the herd. Europa was drawn to this magnificent, white ox that could even sing. She was fascinated by it, caressing it and even riding on its back. At that moment, Zeus dashed for the sea and jumped in with Europa on his back. He swam across oceans until they reached the island of Crete. There, he transformed back to his usual form and told her how he was madly in love with her. She accepted his love and the two lived happily on Crete. To honour her, Zeus named the land across the ocean they crossed Europe, thus naming the continent that we know so well.

(Part of the Zodiac series: https://jineralknowledge.com/tag/zodiacs/?order=asc)

Posted in Psychology & Medicine

OCEAN

Posted on by Jinavie

A major challenge in psychology has been the question: “how do we categorise personalities?”. There have been many different approaches, one famous model being the Big Five model. This model describes five traits, summarised as OCEAN:

  • Openness: Describes a person who is creative, imaginative, abstract and curious. People with high openness scores are often skilled in the arts and inventing. They always seek new experiences. The perfect example for Openness is Leonardo da Vinci. This trait can be subdivided into the subcategories: Imagination, Artistic interests, Sensitivity, Adventurous, Curiosity and Tolerance for diversity.
  • Conscientiousness: Describes a person who is reliable, trustworthy, hardworking, plans ahead, goal-oriented, efficient, responsible and moral. The perfect example for Conscientiousness is Robocop. The subcategories are: Sense of competence, Orderliness, Responsibility, Achievement-striving, Self-discipline and Deliberateness.
  • Extraversion: Describes a person who is chatty, energetic, passionate, stubborn, social, easily makes friends and opinionated. The perfect example for Extraversion is Eddie Murphy. The subcategories are: Friendliness, Gregariousness, Assertiveness, Activeness, Excitement-seeking and Positive.
  • Agreeableness: Describes a person who likes to help others, is compassionate, friendly, forgiving, trusting, cooperative and empathetic. It is more about humanism rather than describing a spineless person. The perfect example for Agreeableness is Mother Teresa. The subcategories are: Trusting, Sincerity, Altruism, Compliance, Modesty and Sympathy.
  • Neuroticism: Describes a person who is unstable, easily depressed or worried, dark and susceptible to negative emotions. It is not the same as “neurotic”, which describes a mental disorder. The perfect example for Neuroticism is Woody Allen. The subcategories are: Anxiety, Self-consciousness, Hostility, Self-indulgence, Moodiness and Sensitivity to stress.

When the model is applied to a person, the person gets a score as a percentage for each trait. By using the Big Five score, one can compare different personalities and predict what kind of behaviour they would show in different situations.