In honor of A Wrinkle in Time author Madeleine L'Engle (who died last week), physicist David Morgan explains tesseracts (aka a "four dimensional cube"). Link
Previously on Boing Boing:
• RIP: author Madeleine L’Engle (Thanks,
Andy!)
A four-dimensional tribute to the late Madeleine L'Engle (Video)
In honor of A Wrinkle in Time author Madeleine L'Engle (who died last week), physicist David Morgan explains tesseracts (aka a "four dimensional cube"). Link
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To save you all the trouble of watching the incredibly slow-loading video, the explanation really wasn't that in-depth or enlightening. Take a line, length L. L^2 is a square, 2 dimensions. L^3 is a cube, 3 dimensions. L^4 is a tesseract or hypercube, 4 dimensions. They have a goofy computer 2-d model that rotates. Nothing to see here.
Oh, this is cool! Thanks for it. Here is my effort to explain the tesseract:
http://lonelypictures.blogspot.com/search?q=tesseract
Am I the only one somewhat annoyed that she used the word "tesseract" when she clearly meant "wormhole"? IIRC, the concept of a hypercube doesn't come up anywhere in the novels...which is something you'd expect when the word tesseract is thrown around.
if you want to get more in depth with these concepts, check this out:
http://www.tenthdimension.com/medialinks.php
not 100% accurate (i don't think), but REALLY INTERESTING!!!!
I think everyone should re-read the book.
Time is the fourth dimension the tesseract
is actually the fifth dimension (no cracks about the age of aquarius either)
1. line
2. square
3. cube
4. cube cubed
5. tesseract