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What is the Origami Cube?
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The origami cube is a cube you can fold from a square
sheet of paper.
Another name is water bomb. |
Folding the
Origami Cube
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1
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Fold a square sheet of paper at the diagonals and unfold
it.
Put the paper at both arrows together.
Lay the triangles at the top and at the bottom on top
of each other.
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2
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The result is a flier triangle, which is known from the
swallow or the pigeon.
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3
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Fold upward on the red line on the right and on the left.
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4
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Then it must look like this.
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5
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Fold on the red lines.
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6
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Then it must look like this.
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7
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Fold the two little triangles on the red lines downward.
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8
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Put the last made triangles in the two pockets on the
right and on the left. This is a little bit fiddly.
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9
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Then it must look like this.
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10
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Turn the whole triangle and repeat the steps 3,4,5,6,7,8,9.
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11
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Then it must look like this.
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12
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Fold and unfold on the red lines.
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13
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Take the folded cube in hand and blow into the hole at
the top. Unfold the cube by this.
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14
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finished
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Some Mathematics
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If you take the cube apart, you get a nice pattern, which
is made by the folds.
You find the formulas:
.........
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On the left you can see the largest net of a cube, which
fits a square.
You find the formulas:
This cube is much bigger than the folded cube. |
If you like to use the whole square for a cube, you have
the formula:
This is the largest cube, theoretically.
See more in book (5), page 63f. and page 71ff. "Der
eingewickelte Würfel".
Origami
Cube on the Internet
Englisch
Dr Stephen O'Hanlon (Ring of Origami Art)
Water
Bomb ( .pdf file)
Gerwin Sturm (Origami for everyone)
Waterbomb
Puzzle Playground (Puzzle_com)
Square
to Cube
Wikipedia
Water
balloon
Deutsch
Jennifer's
Puzzle
Flechten eines Würfels aus 3 Streifen
Umwelthaus Pinneberg e.V.
Wasserbombe
aus Papier
Wikipedia
Wasserbombe
(Spielzeug)
zzzebra
Wasserbombe
References top
(1) Joachim Schönherr, Wir falten und falzen, Leipzig
1990
(2) Therese Mielhaht: Origami Spaß mit Papierfalten,
Köln 1990
(3) Kunihiko Kasahara: Origami - figürlich und geometrisch,
München 2000
(4) Kunihiko Kasahara: Origami - ohne Grenzen, München
2001
(5) Martin Gardner: Mathematische Hexereien, Berlin/Frankfurt
am Main/Wien 1988 [ISBN 3550065787]
Feedback: Email address on my main page
This
page is also available in German.
URL of
my Homepage:
http://www.mathematische-basteleien.de/
©
1999 Jürgen Köller
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