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This is | How can we move something in every three dimensional direction? <br><br> | ||
A mechanical feature of thread is that it can pull - but it can't push. <br> | |||
This structure helps to move things with thread by the use of additional mechanical support.<br> | |||
It is meant to be used by two peoples who operate two strings (yellow, each person) in order to move the object.<br><br> | |||
One important part of that structure is a spring (green). <br> | |||
It is attached to a fixed spot in the room. It stretches and contracts itself when the attached object is moved 1) parallel to the ground and 2) up and down. <br><br> | |||
Another essential aspect is the thread that goes through the middle of the object. <br> | |||
It holds the object in place so that a precise movement is assured.<br> | |||
It also takes away some of the objects weight in order to exonerate the operator strings.<br><br> | |||
A third important part is | |||
[[File:Kran_thread.png]]<br> | [[File:Kran_thread.png]]<br> |
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