NOVA scienceNOW: Sleep
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Student Handout
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Knot Tying with a Twist
How to Tie a Square Knot
Take the ends of the rope and make an "X"
with the left end of the rope placed over the right.
Cross the "new" right end around the rope to
make an overhand knot.
Take the right and left ends and put the right end over
the left.
Tie a second overhand knot.
Pull the ends tightly so that they make a neat, square
knot.
How to Tie a Bowline Knot
Hold the two ends of your rope together,
then lay your rope flat on a table.
Take the left half of the rope and make a
small loop about half way down. (This loop is sometimes called the hole.)
Take the right end of the rope (the tag
end), and bring it up through the hole.
Pass the tag end under and around the left
strand of the rope.
Then bring the tag end back down through
the hole and pull the knot tight.
How to Tie a
Sheepshank Knot
Lay the rope on a table and make an "S" with
rope.
Make a loop at the bottom left.
Pass the top part of the S through the bottom loop.
Make a small loop at the top right.
Pass the bottom part of the S loop through the top loop
and tighten so that the looped ends on the left and right are about the same
size.
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