Tag: gif

Posted in History & Literature

Shibboleth

Posted on by Jinavie

We are often corrected by others (as much as we correct others) on the proper pronunciation of words. Luckily, improper pronunciation is rarely consequential (other than sparking debates such as how to pronounce the word “gif”). However, on numerous occasions throughout history, this was not the case.

During World War 2, American soldiers in the Pacific Theatre came up with a questionable way of detecting enemy soldiers pretending to be allies to sneak in to bases. If a suspicious person was to approach a checkpoint claiming that they were an American or Filipino soldier, the sentry would ask them to say a certain word. The word was “lollapalooza” – an American colloquialism for something that is exceptional and extraordinary. The basis for this test was that Japanese people tend to pronounce the English letter “l” as “r” due to the difference in the two languages. Therefore, if the person was to repeat back “rorra-” they would be immediately shot.

This seems like a highly inaccurate method. What if they were an American soldier who had a bad head cold, or a lisp? But this type of racial profiling by the way someone pronounces a certain word has been commonly used throughout history to filter out people of certain races. Lollapalooza is an example of a shibboleth – a word that can distinguish people of a certain race by their inability to properly pronounce it.

The word comes from the Biblical story of the Ephraimites. When the Gileadites were invaded by the Ephraimites, they fought back and repelled the Ephraimites, who tried to retreat by crossing the River Jordan. The Gileadites planned ahead by securing the river so that they could capture the Ephraimites. They ordered each person crossing the river to say the word “shibboleth”. Because the Ephraimite’s dialect did not include a way to pronounce the “sh” sound, they would repeat back “sibboleth” and were killed on the spot.

Unfortunately, shibboleths have typically been used to identify members of a certain race so that they could be massacred. Nowadays, shibboleths are used in a more light-hearted manner. For example, New Zealanders and Australians mock each other on how each pronounce the words fish and chips. Because New Zealanders pronounce the “i” with a shorter sound, Australians tease that they say “fush and chups”. On the other hand, New Zealanders mock Australians on their long “i” sounds that make it sound as if they are saying “feesh and cheeps”.

Posted in Science & Nature

Microwave

Posted on by Jinavie

The following are some strange things that happen when certain objects are placed in a microwave (and then turned on).

  • Never put metallic objects in a microwave. Metals act as an antenna, collecting the microwave and creating an electric current. This causes the metal to heat up, burning the food or melting plastic containers. Also, if the metal is pointy, it may cause an electric arc (sparks) which can be very dangerous. 
  • Ice alone does not melt in a microwave. This is because microwaves cause vibrations of particles to generate heat, but in ice the water molecules are tightly bonded and so vibration does not occur. 
  • Microwaves can cause something called superheating of liquids. This means that the liquid is heated to beyond its boiling temperature without boiling. A superheated liquid can spontaneously begin to boil in an explosive manner when disturbed. This is dangerous as it can mean that a cup of boiling hot water may suddenly explode in your face.
  • Certain foods are known to generate sparks in a microwave. For example, when two oblique slices of chilli pepper are placed near each other point-to-point, a flame sparks between the two points from the arcing electricity. Grapes do the same thing.
  • Some foods such as grapes and eggs explode in a microwave. This is because of the pressure building up within it from all the steam being released all at once. This is amplified with something like an ostrich egg where the shell is strong enough to contain an immense pressure. But when a certain pressure is reached, the egg will literally explode and send shrapnels of microwave pieces flying out like a bombshell.
  • A piece of garlic will spin rapidly in a microwave as garlic has a thin tube running on one side. As water evaporates, the vapours rush towards both ends causing the garlic to spin. Also, if you cut the bottom of a clove of garlic then microwave it for about 15 seconds, the pieces of garlic will pop out easily.
  • As explained above, metal conducts microwaves and generates a current. This is most obvious when a CD is placed in a microwave, where sparks dance on the surface (assuming the reflective surface is facing up). Similarly, a fluorescent tube will light up in a microwave from the electricity generated.
  • Placing an open flame, such as a lit candle, inside a microwave produces a very strange phenomenon. The naked flame will become ionised plasma and shoot up to the ceiling of the microwave. This is observed as a ball of light floating around. Note that this is extremely dangerous and most likely will destroy the microwave.

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Posted in History & Literature

Earworm

Posted on by Jinavie

Everyone experiences the phenomenon of a tune being “stuck” in one’s head. This is when an addictive song or piece of music seems to play over and over in someone’s mind even when they are desperately trying to forget it. The Germans call this phenomenon ohrwurm, which translates into “earworm”. 

Having an earworm is not necessarily a pleasant thing, as the person with it may become irritated or agitated by the piece of music. It has been noted that the condition is much more common in people with obsessive-compulsive disorder (OCD), suggesting that earworms may be caused by the brain subconsciously obsessing over the piece of music. 

Because it is so common and addictive, earworms are extensively used in marketing in the form of hooks – music designed to stick in people’s heads. By associating the hook with the marketed brand or product, people cannot stop thinking about it and this subconsciously affects their buying habits.

The concept of earworms is also popular in literature, where authors become creative and explore the “potential” of an earworm. For example, Arthur C. Clarke wrote a short story titled The Ultimate Melody where a scientist invents a melody that compels the brain to become enraptured by it through synchronising with brainwave patterns. Interestingly, the scientist creates the melody simply to escape the barrage of pop music filled with hooks and catchy tunes. Ultimately, he is found catatonic as the melody completely takes over his mind.