Popular, Science, Nature and Tech

What is Biotechnology?

Perhaps you have heard of the term biotechnology and wondered what it is. You may think you know already – after all, the parts that make up the word are very familiar: bio + technology. You have seen the first part of the word in biology, antibiotics, all sorts of words. It comes from Greek bios, which means ‘life’.

As for technology, it is not just about computers and smartphones. Technology is the practical use of knowledge to create useful things and solve problems. You might like to think of it as tech-knowledge-y. So, taking it one step further, biotechnology is about using biology in technology.

We talked to Alessandra Iscaro, a biotechnology researcher at the University of Florence, Italy, and she explained to us what it is all about.

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Art & History, Language & Literature

Jump! into Etymology for Kids

Have you ever thought about languages, and how they develop over time?
Why do we say ‘tree’ when we look at a one of those green things outside our window, and where did the word ‘rose’ come from? (Can you tell that I am looking out of my window for inspiration?)
When we look at the links between the words that we use in English and those in a different country, we often find similarities. Information is the same in English, as in German and French, although the pronunciation is different.
The study of words is called etymology, and today Millie is going to explain a bit more about this, and tell us a bit about the word ‘JUMP’.

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Language & Literature

Do Earwigs Really Live in Our Ears?

do earwigs really live in our ears

There has long been a myth that earwigs use human ears either to lay their eggs or to live in and feed off our ear wax, or other similar things. It sounds pretty gruesome, doesn’t it? After all, who would actually like the idea of an insect living inside their ear? But do earwigs really live in our ears?

Fortunately for us, it is not true. Despite their name, earwigs don’t actually live in our ears and neither do they use them to lay eggs. They much prefer their normal habitat of nests under rocks and logs or in flowerbeds. So where does the earwig get its name?

 

Old English Origins

Yet the name itself suggests that this has been a myth for a long time, so let’s examine the name. It can easily be split into two parts: ear and wig. These two parts both come from Old English; which is what we call the language as it was spoken when it was first written down, right up to the tenth century. So this would include the period of Kind Alfred the Great; he of the burning cakes.

In Old English, the words were eare and wicga. The first part, which you can recognise quite easily, meant ‘ear’. But the second part, wicga, meant ‘insect, beetle, worm’. The interesting thing is that it came from a root that did not have anything to do with insects at all, but instead meant ‘wiggle’.

Think about how even today we say ‘wiggly worm’; or think about how you would describe the movement of a caterpillar. You can see how this word came to be associated with insects. So if we put the two parts of our word together again, we have ‘ear-insect’. It seems that our very early linguistic forebears did indeed believe that earwigs lived in the ear.

Blame it on the Romans

But where did this myth that they dwell in our ears come from? It is not unique to English; in German it is known as Ohrwurm, or ‘earworm’, and it is the same in Welsh with pryf clustiog; while in French it is perce-oreille, or ‘ear-piercer’.

To find the origins of the myth, we have to go back in time all the way to the days of the Romans. In around 77 CE, Roman naval commander and writer Pliny the Elder published his work Historia Naturalis, or Natural History.

In it he writes about a great deal of the natural world, including insects. It is here that the myth may have begun, as he writes about earwigs getting into the ear. Perhaps he saw one that had happened to go into the ear by chance, much as a fly or a spider might, and jumped to the wrong conclusions.

The Pincer Insect

Other languages have taken the name from the apearance of the insect; in Italian it is known as forbicina, and in Spanish it is tijereta, while Greek has ψαλίδα [psalida] All three of these translate as ‘little scissors’, deriving from the pincers that the earwig uses to catch its prey.

 

Featured Image by Tom Bullock / Flickr 

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News & Politics, Popular

What Does Brexit Mean for Kids?

The British have voted to leave the European Union, but what does this mean, and what does Brexit mean for kids?
Most of you will have heard of the EU Referendum, known as BREXIT (which stands for BRitish Exit). If you don’t know what a referendum is, then this is a good place to find out more.
We asked some of our readers what questions they had about BREXIT. These questions are difficult to answer right now because even the experts don’t know exactly what will happen, but here’s what we know so far. If you have any questions, comment on this post and we’ll try to find the answers for you.

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Science, Nature and Tech

Why do we get Hiccups?

why do we get hiccups

Everybody gets hiccups (also sometimes spelt ‘hiccoughs’). Even when babies are still in the womb they hiccup, which can feel very odd to their mother! But why do we get them and how can you stop them?

What are Hiccups?

Hiccups are caused by the diaphragm (pronounced DYE-uh-fram). This is a large, dome-shaped muscle that sits at the bottom of your chest cavity, below your lungs. When we breathe in the diaphragm tightens, helping to pull air into the lungs, and when it relaxes it forces the air back out again. Sometimes the diaphragm becomes irritated and instead of tightening smoothly it does it in a jerky way, which makes air suddenly rush into your throat. This air is stopped when it hits the voice box and makes the opening between the vocal cords close very suddenly. This is what produces the sound of the hiccup.

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