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Friday 28th July 2006 Issue: 49

In the words of a well-known newspaper – “Phew!

What a scorcher!” We’re in the middle of a heatwave. Let’s hope a flick through your Haywire will help, after all it is the coolest science newsletter around. So what have we got for you straight from the freezer this week? Well you’d better have a look – and help yourself to a choc-ice as you do so…

  1. Up for Grabs – Catch Robot Fever!
  2. The Buzz – Heatwaves and thunder
  3. Crash Bang! – Tornado in a jar
  4. Out and About – Stormbreaker
  5. Winners – Balloon car

1. Up for Grabs – You’ve got to be in it to win it...

Robot fever hits Yorkshire! The hi-tech thrills of robot combat are descending on Yorkshire this Saturday (22 July) when a new Robot Wars-style summer attraction opens at the Eureka! children's museum in Halifax. And we’ve got a family pass to give away!

Robogeddon will give visitors the chance to take control of powerful Cyber-Raptor robots and battle against their opponents inside a themed combat arena. RAZER, the world famous champion of TV's Robot Wars, is making a guest appearance at the museum on Saturday to launch the new attraction. Open throughout the summer holidays (22 July - 3 September) Robogeddon's visit to Eureka! will be the first time the mobile attraction has been seen in Yorkshire. And it’s not just robots, there’s plenty more including an open air Maze of Illusions for children of all ages, hands-on activities especially for under 5s and regular appearances from CBeebies character Gordon the Garden Gnome.

So if you want to win a family pass then simply answer the question:

What is the name of the world famous champion of Robot Wars?

Send your answers in an email with your name, age and address to: Hay-wire.Clubhouse@nesta.org.uk with ‘ROBOT WARS’ as the subject. The winner will be picked at random at 5pm, on Thursday 3rd August.

Good luck!

For more information about Eureka! events, opening times and prices please call 01422 330069 or visit www.eureka.org.uk.

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2. The Buzz – Science news delivered to your inbox…

Britain is preparing for another mini heatwave after weather experts warned temperatures are on the rise again. Areas of the country are expected to top 34°C, with other parts of Europe getting even hotter. It has been so hot recently that cameras in space have even picked up on high temperatures with heat images showing the UK is red hot. Images beamed back from space show the sweltering heat in the UK causing lots of air pollution. The pictures also show big temperature rises across the UK.

So one minute we are all sweltering away, the next we are hit by sudden thunderstorms.  Thunderstorms are some of the most spectacular weather events we can experience in the British Isles. You can often tell when a thunderstorm is about to occur because tall storm clouds develop and the sky becomes very dark. Lightning can be seen flashing from the clouds as the thunderstorm approaches, followed by a boom of thunder. Lightning itself is a giant electrical spark leaping between the clouds or down to the ground, heating the air in its path to 30,000 °C. This sends out large shock waves, which we hear as thunder. Thunder and lightning happen at the same time, but light travels faster than sound, so you see the flash of lightning before you hear the clap of thunder.

Next time you see a thunderstorm you can try an experiment to find out just how far away the storm is. Start counting the seconds from the time when you actually see the lightning flash to when you hear the thunder. Then divide the time you've counted by three and this will be the distance in kilometres between you and the storm. If you do this every time there is a flash of lightning and count to a higher number each time, the storm is moving away. If you count to a lower number each time, the storm is moving nearer. Find out more about the weather by checking out the Met Office site.

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3. Crash Bang! – Exciting experiments for you to try at home…

Talking of extreme weather…

Make a tornado in a jar

You will need:

  • A clear jam jar or similar see-through container with a screw-on lid
  • Washing-up liquid
  • Food colouring

What to do:

  1. Fill up the container with water then add a few drops of the washing-up liquid and a few drops of the food colouring.
  2. Tightly screw on the lid.
  3. Swirl the container around in a circle several times and then stop.
  4. Inside you should see what looks like a tornado.
  5. It will slowly fade as it reaches the top of the container.

What’s going on?

Tornadoes in the real world form in a similar way. A tornado is a violently rotating column of air, often touching the ground, and is created by a special type of rotating thunderstorm called a supercell. 

There are plenty of puzzles, poems and experiments about the weather on The Met Office.

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4. Out and About – Things to see and do…

Did somebody say ‘storms’?

Have you sent the film ‘Stormbreaker’ yet?  Well Haywire has given it a viewing and a resounding thumbs up for action and excitement.  In a nutshell it is about a 14-yearold boy called Alex Rider who suddenly find himself acting as a spy to save the world.  Typical day for most of you eh? Well the film is full of thrills but does the science really stand up? Alex has many gadgets at his disposal to get him out of trouble but it’s the Zit Cream that has us worried.  He merrily spreads some on his finger and gives it a sniff.  Hmmmmmm – fairly pleasant.  But the next thing you know it’s eating its way through METAL and even manages to etch away at GLASS.  Now come on Alex, anything that corrosive is not really going to be safe enough to spread on your SKIN is it? So is there really any chemical that can eat through metal and glass?  Well yes actually.  It’s a real nasty and its name is hydrofluoric acid (HF).  It can attack glass, concrete, some metals and organic compounds (such as living tissues) with ease. You do not mess with HF – nuff respect! So if the Zit Cream on Stormbreaker contained HF then Alex would probably find that he now has no finger and probably little left of his nostrils either! And by the way, we doubt very much that it would work underwater… if that’s got you puzzled then go see the film!  And if you spot any other examples of dodgy science then email us at Hay-wire.Clubhouse@nesta.org.uk with ‘BIT DODGY’ as the subject.  Don’t forget to put your name and age and we’ll print your answers.

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5. Winners – Has your name been picked out of the bag?

Remember Issue 47 when we were offering three balloon cars? Well we suspect we may have had a problem with our email system as we only had ONE entry.  Now that can’t be right can it? So the winner of one car is Christopher Davis (12) of Cardiff. Well done Christopher – hope you’ve got plenty of puff! And we’d like to run this again for anyone who wants to win one of the remaining two cars.  So if you fancy joining Christopher in a balloon car race then email us with your name, age and address to: Hay-Wire.Clubhouse@nesta.org.uk with ‘OVERINFLATED’ as the subject. The winners will be picked at random at 5pm, on Thursday 3rd August.

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Information Overload

Planet Science has gone Hay-Wire and now you have too!

That’s all for this issue. The next issue of Hay-Wire will be with you in two weeks time so until then, why not ask your friends to join the Hay-Wire Club?

They can visit the Clubhouse for more details at:
http://www.planet-science.com/wired/hay-wire/clubhouse

Bye for now!