Tag Archives: educational

‘Ye Olde’ Should Be Read As ‘The Old’

Minute Physics decided this issue is important enough to make a video about even though it has nothing to do with physics, so here is why you’re reading ‘Ye Olde Shoppe’ the wrong way: in the olden days, the sound “th” had its own letter, Þ, called thorn. This letter appears in Scandinavian languages and was probably introduced by the Vikings, during numerous invasions of England during the 9th and 10th centuries (Old Norse and Old English were similar languages, both having come from Northern Germany). During this time, words like “this” and “that” would have been written “Þis” and “Þat”, if Old English were anything like Modern English.

 

The first page of the Old English text of Beowulf, with words containing the letter thorn circled

 

Then the English were conquered for the last time, in 1066 by an entirely different sort of Vikings: Normans, who had settled in the part of northern France now known as Normandy, who spoke French and who instituted it as the language of the aristocracy in England. Over time, the ruling class did adopt English, but it became heavily influenced by French.  These French-speaking English didn’t like the letter thorn, so they started using “th” instead of “Þ”, and it obviously caught on. But for centuries after the Norman conquest, thorn was still used.

In fact, it was still in use when the printing press was invented 400 years later, but since printing presses came from continental Europe, the typed alphabets were Latin and didn’t include the letter thorn and other Norse runes. Having to make do with what they had, English writers figured that ‘y’ looked close enough to ”Þ” and started using it instead. And that’s how “Þe olde” became “ye olde”. Interestingly “ye“, pronounced like you’d think, actually meant the same thing back in those days as “y’all” does in the South now.

This taco house will not put up the French spelling of "þe"

 

All Scandinavian languages eventually followed suit with English and started using “th” instead of “Þ” — except for Icelandic, who still uses thorn and another Old English letter called eth (ð). As for English, there’s little chance of it going back to ”Þ”, especially since words like “thorn” would become ”Þorn” and probably be either read as “born” or “porn”. And just for confusion, there’s a letter called sho (Ϸ) that looks very similar to thorn, but comes from the Greek alphabet and has nothing to do with English.

From YouTube, via Neatorama

3 Learning Tricks From A Psychologist

UCLA has a Learning and Forgetting Lab and the guy who its named after gave Wired a few hints on how to learn and not forget:

  • Interleave: don’t just keep trying to learn one thing until you master it, but rather move on to something else for a while. The something else should be related though, so maybe break up a subject like the Cold War into decades.
  • Change venues periodically: if you study in only one location, you’ll only remember the stuff in that location.
  • Learn, wait a while, then recall: if you just learn a thing once, it’ll get more and more buried the longer you don’t recall it. But if you wait some time, until you can just barely remember it, then study it again, it will help you recall it easier the next time. In a sense, it’s like practicing retrieving that particular memory, because we have so many facts in our heads that we need that practice.

 

So come back and read this in three days from a different location.

From Wired

Math And Plants

One of the coolest things about math is when it can actually be applied to the real world, like when it helps you figure out in what direction to shoot a cannon ball to hit your nemesis’ house, or how to beat the house at Black Jack. But even those applications are almost always about physics or chemistry and rarely about biology, since life can’t be bothered with such rational things as math.

The video below is therefore very cool because it shows that the leaves in plants are generally spaced in a mathematical series, because that’s the optimal way for leaves to grow such that they fill in the most available space. And because of that simple fact, plant growth can be predicted mathematically, which makes math that much more interesting.

From YouTube, via Neatorama

A Brief History Of Santa

C.G.P Grey’s newest video explains how Saint Nicholas, Father Christmas and other similar characters were all thrown into the American melting pot, out of which emerged Santa Claus.

The real-life Santa village in Finland he mentioned is called Rovaniemi, and it has a pretty good Internet presence, including a website and a YouTube channel.

If you liked this video, Mr. Grey has a few other interesting ones:

From YouTube, via Laughing Squid

 

Why The Electoral College Should Be Abolished

The venerable C.G.P. Grey is back with another interesting and educational video, this time tackling the problems with the American Electoral College. (If that term is a fuzzy memory from high school government class, he also has a good five-minute video on how it works). The problems he points out with the system:

  • It’s unfair to people living in large states, because of a rule that redistributes some electors to smaller states, to keep presidential candidates from ignoring them. As a consequence, a vote from a person in Vermont counts for three Texans’ votes and someone in Wyoming counts for four Californians.
  • But candidates still ignore the small states, which get pretty much no visits or money from candidates.
  • What’s more, they also ignore the big states, like California, Texas and New York. Why? Because where candidates spend their resources is in big “battleground” states — the ones that could go either way. These days, Texas is a lock for Republicans, while California and New York are firmly Democratic; so why even bother preaching to the choir? Instead, candidates focus on a handful of states like Florida and Ohio that have big populations from both parties.
  • In fact, in the two months before the 2008 elections, just four states (FL, OH, PA, VA) received the majority of visits and money. So the opinions of the citizens in those four states tend to dominate politics, making it really unfair for someone in Colorado, for example.
  • It is technically possible to win the presidency with 22% of the popular vote. That means 78% of the people could vote for Obama in 2012, and he could still lose. This should absolutely not be possible in any democracy, much less in a country with the United States’ stature.
  • Throughout American history, there have been three elections in which someone became president with less than 50% of the popular vote — most recently, G.W. Bush in 2000. That means that 5% of the 56 elections since 1788 have failed. Any critical system that has a 5% failure rate is broken: if the electric utility failed that often, you’d have no power for more than two weeks a year; if the DMV failed that often, 5% of drivers would be blind or kids.

Clearly, much of government is broken — e.g., the economic system, the justice system — because they have much higher failure rates. However, at least we’re doing the best we can for most of them. But that’s not true for the electoral system: as he points out in the first video, the electoral college was created because in the 18th century, information traveled at the speed of a horse: having a small-ish group vote at the same time and place was the best way to do an election. But now, information travels at the speed of light and the electoral college is just simply archaic.

If you liked this video, Mr. Grey has a few other interesting ones:

From YouTube, via Laughing Squid

Why Daylight Saving Time Should Be Abolished

C.G.P. Grey — the guy who explained the difference between England, Britain and the U.K., and taught us that there’s no good way to figure out how many continents there are — has a new video all about Daylight Saving Time (DST), the curse of which is about to end in a couple of weeks, at least until next year. The video tries to be somewhat objective, but makes a few good points on why DST is bad:

  • In hot climates, it doesn’t save energy. The biggest reason for that is the invention of air conditioning: in the summer when it’s hot out, people won’t enjoy the summer heat, but rather stay inside with the A/C. Now, they might not turn on the lights because the sun’s still up (and this is what DST was meant to do), but the A/C consumes more energy than a dozen light bulbs.
  • Overall, there are conflicting studies that show both that DST saves energy and that it wastes more energy. In either case, the savings or waste is less than 1%, which is about 4$/year per household. Is that worth the hassle?
  • No, it’s not, because there are a lot of human costs associated with the time change: heart attacks and suicides spike the week after the time change; coordinating international meetings (which is pretty common these days) is a productivity loser, because different countries change times at different dates and not even our techy gadgets can keep up with all of them. Not only that, but even within the US, there are places where DST is not observed — like Hawaii and Arizona.

From YouTube, via Laughing Squid

How The Brain Becomes Bilingual

We’ve seen before that being bilingual is a pretty good thing for the brain, because it makes it really good at focusing on one thing and tuning out all the noise, better at multitasking, and more creative at problem-solving. The New York Times now has an article about research being done on babies to see what happens when they first start to learn to speak. This research shows that babies first start being able to make out word sounds at about 6 months old and over the next 3 months or so, the brain hones in the language(s) around them. Each language has a specific kind of sound to it, and so if a baby grows up around English, his brain will focus in on sounds that sound like English, and by 10-12 months old he’ll get significantly worse at paying attention to non-English sounds.

Baby in a Magnetoencephalography (MEG) machine

 

However, if the baby is exposed to two languages, for example English and Mandarin, at 12 months he’ll be just as good at picking out the English sounds as the Mandarin sounds, and just as bad at picking out other sounds (for example, Turkish) as a monolingual kid. This shows how the brain goes from being a blank slate for language to becoming specialized at hearing languages that matter to the baby. There are a couple of interesting nuances too:

  • Babies respond to two languages only when real, live persons speak it to them. Just playing audio or video of people speaking it has no impact whatsoever.
  • When 4 months old, babies can differentiate between languages just by seeing the people speaking them, without hearing any sound. By 8 months old, monolingual babies lose this ability, but bilingual ones still have it.

The related TED presentation done by the researchers makes for a pretty interesting 10 minutes:

From The New York Times and TED

How Many Continents?

If you start thinking about how many continents there are, there’s really no good definition for them. We’re taught that there are seven continents (North America, South America, Europe, Asia, Africa, Antarctica, Australia), but really there is no solid definition of the word “continent” that arrives at that number, which is based on some vague notion of geographical landmasses and culture. So depending on how you actually define the word, there can be as few as three or as many as dozens of continents.

C.G.P. Grey, the guy who brought us the history of coffee and the difference between England, Britain and the U.K., explores the interesting issues involved in a new video:

From YouTube, via Laughing Squid

 

Everything You’ve Ever Wanted To Know About Coffee

From the same guy that explained to us the difference between England, Great Britain and the UK, now comes a new video bringing to light all the wonderful benefits of coffee. Summary: coffee comes from the tropics, it’s consumed avidly by northerners (especially northern Europeans), has virtually no downsides at all and is responsible for the Enlightenment and therefore everything else that’s good about Western civilization.

Via Laughing Squid

Being Bilingual Is Great For The Brain

The New York Times has an interview with a brain scientist who’s been specifically studying people that speak more than one language, fluently. Meaning, your high school Spanish doesn’t count, but if you speak Turkish with the bus driver every day, that’s good. So for those that are truly bilingual, the benefits come from the fact that they’re always juggling around two languages in their head, and the brain gets really good at tuning one out and focusing on the language that matters at the moment.

Einstein was bilingual

 

However, this benefit extends to anything else the brain is doing, and these lucky individuals are really good at tuning out all kinds of stuff that doesn’t matter — the noise of the problem — and are better equipped to focus on the relevant data. Monolinguals on the other hand, would take longer to evaluate what’s going on in a distracting environment. In fact, they did a study asking people to multi-task while driving and the bilinguals’ driving performance dropped less than the normal folks’. Another interesting study showed that Alzheimer’s showed up about five years later in bilingual patients, not because they didn’t have it, but because they were able to better cope with the loss of brain function.

What the article doesn’t address but would be very interesting to see is, how the digital natives do versus bilingual people. A lot of kids that have grown up in the past couple of decades have been constantly and voluntarily exposed to massive amounts of media, while having to perform worthwhile tasks. For example, doing homework while listening to music and chatting on the Internet with a best friend, and every so often getting interrupted by email and text messages. It seems like that kind of juggling could give speaking two languages a run for its money, making their brains also excellent at focusing on the relevant stuff at hand.

From The New York Times, via Lifehacker