The last time Dr Matthew Piccaver wrote for Jump! Mag, it was on the topic of poo, and today he’s going to tell you a bit about the part of your body that you might just have wrinkled in disgust… the nose! Find out how noses work but don’t get too comfortable, because it snot over yet …
There has been a lot of excitement about the Juno probe this week, but what is it and what is its mission?
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)
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).
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.
What is the longest loom band that you’ve been able to make? Perhaps you managed to make one long enough to skip with, but have you ever wondered about the world’s longest loom band?
What is Geocaching? It’s like a real-life treasure hunt and is a great way to make a walk in the woods just a bit more interesting!
Julianne Robertson explains what it is and how to do it.
What is it?
Players use a handheld GPS device or a smartphone to look for a set of co-ordinates near to wherever they are and find the geocache (or treasure!) hidden at that location. These are usually a small container of some kind with a logbook and ‘treasure’ inside – this can be anything, like a little toy, some stickers, a badge, a pretty stone – basically anything small enough to fit inside and be worth finding!
Sounds good! How do I get started?
Go to the website www.geocaching.com and register – it’s free to sign up. Then you put in your postcode and you should see a list of all the geocaches near to where you live. Choose one and you’ll get the co-ordinates you need to put into the GPS, as well as a description of the area and clues about how to find the cache.
Are geocaches always hidden in the woods?
No – there are geocaches all over the world and they are usually put in places which are important to the person hiding them. Some are hidden in forest areas, others are in local parks, or city streets – even underwater! There are also different sizes of geocache and a range of difficulty – you should probably start with one that’s easy, at least to begin with!
What do I do when I find one – can I keep the treasure?!
Yes, but you should replace anything you keep with something of equal or greater value. You should also write about your find in the logbook and when you get home log your experience on the website too, so that others know the cache is still active.
Can I hide my own cache for others to find?
Yes, once you’ve found a few caches you’ll know what makes a good geocache and hiding place, and you might want to create your own! There are lots of guidelines on the website about how to do it.
Now you know about geocaching – go and try it! It’s a great activity to do with your family or a group of friends. Once you’ve found one, you’ll want to find more!
Julianne Robertson is a freelance journalist, based in Dundee. Her background is radio news, and she now writes features and reviews, specialising in parenting, faith and religion, events and lifestyle issues.
