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I think some people will be prepared
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| bet | 145/209 | | Sana | 22.11.2023 | | Hajmi | 1,11 Mb. | | #103463 |
Bog'liq Listening transcripts 230531 122425I think some people will be prepared
to pay a little extra for something that looks different.
Q22
PROFESSOR: That’s a nice idea. I see you’ve called your design ‘the Rockpool’; why is that?
JOHN:
Basically because it looks like the rock pools you find on a beach. The top is made of
glass so that you can look down into it.
PROFESSOR: And there’s a stone at the bottom. Is that just for decoration?
JOHN:
Actually it does have a function.
Instead of pushing a button, you turn the stone.
Q23
PROFESSOR: So it’s really just a novel way of starting the dishwasher.
JOHN:
That’s right.
PROFESSOR: It’s a really nice design, but what makes it innovative?
JOHN:
Well, I decided to make a dishwasher that uses carbon dioxide.
PROFESSOR: In place of water and detergent? How will you manage that?
JOHN:
The idea is to pressurize the carbon dioxide so that it becomes a liquid. The fluid is then
released into the dishwasher where it cleans the dishes all by itself.
PROFESSOR: Sounds like a brilliant idea! Your system will totally do away with the need for strong
detergents. So what happens once the dishes are clean?
JOHN:
Well, to allow them to dry, the liquid carbon dioxide and the waste materials all go to an
area called the holding chamber.
That’s where the liquid is depressurised and so it
reverts to a gas
Q24
. Then the oil and grease are separated out and sent to the waste
system.
PROFESSOR: It sounds like you’ve thought it all out very thoroughly. So, what happens to the carbon
dioxide once the process is complete? Not wasted I hope.
JOHN:
Actually, that’s where the real savings are made.
The carbon dioxide is sent back to
the cylinder and can be used again and again.
Q25
PROFESSOR: What a terrific idea. Do you think it will ever be built?
JOHN:
Probably not, but that’s OK.
PROFESSOR: Well, I’m sure a lot of positive things will come out of your design.
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