4 items are filed under this topic.
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Securing a plank in four dimensions |
2001-06-06 |
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From Becca:
If it takes two nails to secure a plank from rotating on a wall in the third spatial dimension, how many nails would it take if you were attempting to secure the board from rotating in the fourth spatial dimension?
Answered by Walter Whiteley. |
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A four dimensional object |
2001-02-14 |
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From A student:
Can you give me some examples of a four dimensional object you can find around your house?
Answered by Harley Weston. |
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Is a sheet of paper 2-dimensional? |
2000-03-06 |
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From Jaclyn Evans:
One day, we were discussing 3-dimensional items. Is a sheet of paper considered a 3-dimensional shape? Or is it 2-dimensional as described by 8.5 by 11 size? Also, could you give me an example of a 4-dimensional item or scenario?
Answered by Harley Weston. |
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Measuring the fourth dimension |
1999-06-07 |
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From Suzanne Hall:
Hi! The other day, two of my students asked a very interesting question: Is the fourth dimension measured with hypercubes? Their reasoning went like this: Lines are 1D and are measured with line segments, which are part of a line. Planes are 2D and are measured with squares, which are part of a plane. Space is 3D and is measured with cubes, which are part of space. So, logically, hypercubes would be used to measure the fourth dimension.
Answered by Chris Fisher. |
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