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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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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Home, Health & Style

Who Invented Denim Jeans?

If you’re anything like me, you’ll live in denim jeans when you’re not at school– they’re comfy, practical and come in loads of different styles, colours and designs. I’ve also got a denim jacket, which is perfect for throwing on over dresses when it’s cold outside. Even denim gilets come in and out of fashion on a pretty regular basis.
I think it’s pretty safe to say that denim has become something of a wardrobe staple over the years and in fact, I don’t really know what I’d do without it. But jeans haven’t always looked the way they do now and trends have changed a lot over the years.

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Language & Literature

Where Does the Word Candidate Come From?

Today is election day in UK, when the citizens of the country choose their new government. You can read all about how the elections work here. You wouldn’t think that dress codes of ancient Rome would affect the elections of today, but they do! Millie Slavidou explains.

Today is a good day to think about the word ‘candidate’. I rather like the etymology of this one.

It comes from Latin candidus, which is the past participle* of candidare, which meant ‘to make white, to make bright’.

Not because of whitewashing whatever the candidates might have said or done! It was because in ancient Rome candidates who wanted to be elected either to the Senate or any other office wore white robes.

If we take it one step further back, to a root meaning ‘white, shining’, we find that ‘candle’ is a cognate.**

 

*Past Particle

The past particle is the past form of the verb that can also be used as an adjective, like “a fallen tree”. In the case above, the adjective is like saying ‘whitened’ in English. Other examples of past particles are:

verb: bite
past particle: bitten
example: a bitten apple

verb: choose
past particle: chosen
example: aa chosen present

verb: crash
past particle: crashed
example: a crashed bicycle

 

**Cognates

A cognate is a distant relative, a word ultimately from the same root. Like a third cousin. Here are some examples of cognates.

 

14126405243_c179f6f9b8_qBook is related to beech. Well, actually, book means beech! Both come from Germanic word meaning beech tree, Buche.

Germanic runes were originally inscribed on tablets made of beech wood. Modern German for book is Buch!

 

2400500463_67988839f0_qWOOL and FLANNEL are distant cognates.  Today, fashion stores often describe plaid shirts as ‘flannel’, but it is actually a soft woven fabric, originally made of wool, but now often cotton or synthetic. You might have a flannel pyjamas, which are lovely and cosy in the winter!
The word wool is from a Proto Indo European root *wele meaning ‘wool’.
 In Welsh, the word gwlanen, means ‘wool’ and is from the same root. The word flannel comes from the woollen vests that were made, presumably by Welsh traders from Welsh sheep –  Gwlanen became fwlanen, and then flannel. So wool and flannel are distant cousins!

 

5556105449_ebe9616b47_q 14322245779_00c3428d73_qToday’s featured image is Marasmiellus candidus, a type of mushroom. You will often find the word ‘candidus’ used in botany or biology to describe something that is white, such as crocus candidus or the white woodpecker Melanerpes Candidus. There is even a white monkey called Propithecus candidus. 

Crocus Image

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