Hint:John Wishart
Global Design Competition
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Erm… hello Professor, I'm John Wishart.
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I'm working on my entry for the Global Design Competition.
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My tutor said you might be able to help me with it.
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Ah, yes, I got a copy of your drawings.
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Come in and tell me about it.
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What sort of competition is it?
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Well, it's an international design competition
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and we have to come up with a new design for a typical domestic kitchen appliance.
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I see, and are there any special conditions? Does it have to save energy for example?
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Actually that was the focus in last year's competition.
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This year's different.
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We have to adopt an innovative approach to existing technology,
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using it in a way that hasn't been thought of before.
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I see, that sounds tricky.
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And what kitchen appliance have you chosen?
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Well, I decided to choose the dishwasher.
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Interesting, what made you choose that?
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Well, they're an everyday kitchen appliance in most Australian houses
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but they're all pretty boring and almost identical to each other.
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I think some people will be prepared to pay a little extra for something that looks different.
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That's a nice idea.
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I see you've called your design 'the Rockpool'; why is that?
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Basically because it looks like the rock pools you find on a beach.
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The top is made of glass so that you can look down into it.
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And there's a stone at the bottom.
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Is that just for decoration?
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Actually it does have a function.
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Instead of pushing a button, you turn the stone.
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So it's really just a novel way of starting the dishwasher.
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That's right.
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It's a really nice design, but what makes it innovative?
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Well, I decided to make a dishwasher that uses carbon dioxide.
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In place of water and detergent?
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How will you manage that?
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The idea is to pressurize the carbon dioxide so that it becomes a liquid.
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The fluid is then released into the dishwasher where it cleans the dishes all by itself.
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Sounds like a brilliant idea!
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Your system will totally do away with the need for strong detergents.
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So what happens once the dishes are clean?
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Well, to allow them to dry,
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the liquid carbon dioxide and the waste materials all go to an area called the holding chamber.
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That's where the liquid is depressurised and so it reverts to a gas.
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Then the oil and grease are separated out and sent to the waste system.
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It sounds like you've thought it all out very thoroughly.
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So, what happens to the carbon dioxide once the process is complete?
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Not wasted I hope.
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Actually, that's where the real savings are made.
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The carbon dioxide is sent back to the cylinder and can be used again and again.
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What a terrific idea.
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Do you think it will ever be built?
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Probably not, but that's OK.
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Well, I'm sure a lot of positive things will come out of your design.
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Now, you seem to have thought about everything so what exactly did you need me to help you with?
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Well, my design has made it to the final stage of the competition
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and, in a few months' time. I have to give a presentation,
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and that's the part I was hoping you could help me with.
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Right, well that should be easy enough.
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What have you managed to do so far?
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Well, I've got detailed drawings to show how it will work
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and I've also written a 500-word paper on it.
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I see.
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Well, if you want to stand a good chance of winning you really need a model of the machine.
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Yes, I thought I might but I'm having a few problems.
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What is the main difficulty so far?
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Let me guess - is it the materials?
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Yes, I want it to look professional but everything that's top quality is also very expensive.
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Look, projects like this are very important to us.
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They really help lift our profile.
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So why don't you talk to the university about a grant?
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I can help you fill out the application forms if you like.
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That would be great.
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You'd better show me this paper you've written as well.
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For a global competition such as this
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you need to make sure the technical details you've given are accurate and thorough.
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Oh, that would be a great help.
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Is there anything else I can do?
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Well, I'm really…
