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one of the strings they used crosses the opening when you open the door so, it would be better if they could come up with a way where the string will not do that so it won't be an irritating obstacle you need to walk over when you want to walk inside of the room.

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It was too complicated to just open a door. and do not lie down on the bed and close the door

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Problem
They wanted to open the door while they were lying in their beds

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this problem is how to open the door when they are still in bed

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The problem that these automatic door openers solved was  to open the door while staying in bed. They were given limited material and then were told to use them to solve the problem 'Opening the cupboard door while in bed.' Like I mentioned before .They solved this problem and can now open the door while on bed.

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the problem is that they but a lots of materials and i think it is lite bit string  so they can do one a lite easy
and

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Their problem was that they did not have the opportunity to open the door while they were lying in the bed. They had to build and make somthing to open the door while their lying still in the bed.

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the problem was  they wanted stay in their bed and open door at the same time

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The problem they solved was  how they can open a door when they where lying in their beds

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The problem to solve  was that they wanted to open the door while they were lying in their beds.

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The automatic door opener made so that you can open your door, even if you are lying in bed. You can be 5 metres away from your bedroom door and still open it with ease. Otherwise you must walk up to your door and twist the doorknob

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the automatic door opener solved the problem of opening a door while they where in bed

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their problem was that they wanted to be able to open the door while they were lying in their beds.

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The problem was that they wanted to ba able to open the door flom the bed but they could not. Their solution was to put strings and pull them from the bed!

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The automatic door opener solved the problem of opening the door while your still siting on a bed.

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The problem they solved was how you could open a door while lying in your bed.

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Problem
It solved the problem with opening a door from their beds.

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The problem is

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The problem the inventions solved was: How do I open the door whithout going to it and interrupting the thing I am currently doing.

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the thing they wanted to solve was to open the door and still sit on the bed.  they used material near them to use it to open the door from the bed

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The problem they needed to solve was to open the door from the bed with a limited amount of material

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The automatic door opener was the solution to open the door while you are sitting or maybe without even moving

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The problem was that they tried to open the door while they where staying in bed.

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It solved the problem of opening a door without needing to go to the door.

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The problem the automatic door opener had to solve was to open a door from your bed

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the design of their door opener was really good but it would be good if they could find a way to make the straw part of the builfd more sustainable, other than that their design was really good.

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they wanted to open the door while sitting on the bed.

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The problem they solved was to automatically open a door without to go up from the bed. They were given different materials. Both of the two groups came up with solutions and they did after that try them out. When they realise that the solution didn't work, they needed to back and start over, just like engineers.
Their final solutions was pretty good but not so sustainable. What they could have done to improve their solutions is to make the door so it can be reused.

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they solved

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the thing was that they were trying to find out how you could  open a dorr from your bed

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The problem was to open the door while laying in their bed. they solved the problem by making automatic door openers

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Tha problem was that thay wanted to open a door wile lying on the bed (they are lazy -_-)

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they wanted to open the door while sitting on bed. they was using differnent materials to open the door

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the problem that was solved was: how do I open the door while I'm laying in my bad.
this is what they could have inproved in their build.