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Science, Nature and Tech

What is Juno?

There has been a lot of excitement about the Juno probe this week, but what is it and what is its mission?

What is Juno?

Juno is a spacecraft designed and operated by NASA, the US space agency. It was launched from Cape Canaveral on the 5th August 2011 and has taken almost 5 years to travel the 716 million kilometres to Jupiter, the largest planet in our solar system. Juno is 3.5 metres in height, and when its solar arrays are extended it’s more than 20 metres across. These arrays are covered in more than 18,500 solar cells, which allows Juno to operate even when it’s at such a great distance from the Sun.

(Image: NASA)

Why is it called Juno?

In Roman mythology Juno was the Queen of the gods. She was married to the king, Jupiter, who wasn’t always well-behaved. Juno had to peer through the clouds to discover what he was up to; the spacecraft is called Juno because it will be looking beneath the clouds that cover the surface of the planet Jupiter.

Aboard the Juno craft are 3 models of Lego minifigures: Jupiter, Juno and Galileo, who discovered in 1610 that Jupiter had moons.

From left to right: Galileo, Juno and Jupiter. (Image: NASA/JPL-Caltech/LEGO).

What is it looking for?

Jupiter is enormous; it’s two and a half times larger than all the other planets in our solar system combined. It’s made entirely of gases and is believed to have no solid surface. The planet rotates at an immense speed, completing one rotation every ten hours, and telescopes have shown us that it has a cloudy atmosphere with colourful spots and stripes. The largest of these, known as the Great Red Spot, is a storm that is several times the size of Earth and has been raging for more than 300 years.

Jupiter. The Great Red Spot is clearly visible. (Image: NASA).

This mission is the first time that humans will be able to glimpse what lies beneath Jupiter’s cloudy atmosphere. The main objective is to understand how the planet formed and evolved, which will give us more information about the formation of gas giants as well as the rest of the solar system. Juno will also measure the quantities of water and ammonia within the atmosphere, examine the magnetic field that surrounds the planet, observe any polar auroras and measure the gravity to see whether a solid core may exist after all.

For more information about the Juno mission you can watch this video from Nasa, and have a look at the Juno mission webpage.

Science, Nature and Tech

Woolly JUMP(ers)! Sheep Shearing in Scotland

As it gets colder, many of us will pull out a woolly jumper to keep warm, but what of the original ‘wearer’ of that wool. The sheep.

Science, Nature and Tech, Written By You

What Is a Raspberry Pi… and How Does it Work?

You may have heard of a Raspberry Pi – a credit card sized computer that plugs into your keyboard and monitor – but exactly what IS a Raspberry Pi, how does it work and what can you do with it?

12 year old Elspeth takes a closer look at the mini-computer and explains how even young kids can use it to learn how computers work and how to code.

News & Politics

What is a Referendum?

There has been a lot of talk recently about the referendum on membership of the European Union. It seems that we cannot turn on the television without hearing about it! But what is a referendum?

A referendum is a vote, not an election by which we choose the people to represent us, but a choice in which all the people who can vote are asked to accept or reject (not accept) a course of action.

You can find out more about our main election, the General Election here.

What this means is that voters are called to say yes or no to a question. You might think that this sounds perfectly reasonable; why shouldn’t everyone have a say in what our country is doing? But it is not as simple as that.

Most questions are decided by votes in Parliament; after all, this is why we elect them to represent us, and in practical terms, we cannot all expect to be experts on all the subjects that must be covered by the government. So this doesn’t happen very often.

Referendums in the UK

In fact, in the UK there have only been twelve, yes, just 12 referendums since 1973. Twelve referendums over the course of 43 years, of which only two have covered the entire country. You can see that this is not a large number.

You might be surprised to learn that the first to cover the whole country was in 1975, and it was on membership of the European Economic Community (EEC), which is what the European Union was then known as. The second was in 2011, and related to a reform in the voting system known as Alternative Vote.

All the other major referendums in the UK have been related to questions of devolving power – or the governing of the distinct regions of England, Wales Scotland and Northern Ireland.

Origins of the Word Referendum

The word came into use in English in 1847. But at that time, it was mostly about Switzerland, whose system of direct democracy involved (and continues to involve) a large number of referendums. The word was coined, or created, from Latin referendum, which means “thing to be referred”. This is because, in a referendum, the decision is referred to the people.

The word referendum in Latin is from the verb referre. This verb means “to bring back, to take back’, which is the very essence of a referendum: a question is being brought back to the people who will be affected by it.

What is the Plural of Referendum?

A lot of people think that the plural of referendum is ‘referenda’, but is it really?

[perfectpullquote align=”full” bordertop=”false” cite=”The Oxford English Dictionary” link=”” color=”” class=”” size=””]Referendum is logically preferable as a plural form meaning ballots on one issue (as a Latin gerund referendum has no plural). The Latin plural gerundive referenda, meaning ‘things to be referred’, necessarily connotes a plurality of issues.[/perfectpullquote]

What does that mean?

A gerund is a grammar term used in Latin and other languages. In Latin, ‘referenda’ would mean ‘more than one thing to be considered’, whereas a referendum as a vote tends to be on one single issue.

We can use ‘referendum’ as a plural if we wish, but ‘referendums’ has also become normalised in English, as the word has been accepted in popular use in English, and of course the usual way to make a plural in English is to add ‘s’.

You can find out more about the British political system in these posts.

The UK General Election – An Explanation for Kids

How to Jump into Politics

What is it Like to Be an MP?

Women in Politics: Be The Change You Want To See

Sports

Stories from the Stables Part 2 – Topper. Ouch!

Our Stories from the Stables series from Carolyn Ward continues with a flea-bitten grey with a shocking attitude.

Topper. I swear that pony could scowl.

It was my week to ride him, and I had just hauled him all the way down to the outdoor school and stood him in the middle to check his girth and stirrups. As I reached under to tighten up the girth he turned his head toward me and eyeballed me, then stepped over with his nearside foreleg; and stamped on my left foot.

I hissed a very rude word and frantically pushed him to move him off. My foot sunk into the woodchip surface with his heavy weight crushing it down. By now he was still looking directly at me, so I started punching his shoulder to try and get him to step off. Today’s teacher was a crosspatch I have no fond memories of; if she had found out about it I’d have been bawled out for having my foot in the wrong place or something.