Seals balance balls on the ends of their noses. Ballerinas balance their bodies on the tips of their toes. And mobiles hang perfectly because they, too, balance. Learn all about the scientific principles that allow a gymnast to perform incredible tricks on the balance beam and an acrobat to walk easily across a thin wire. Illustrated.
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Seals balance balls on the ends of their noses. Ballerinas balance their bodies on the tips of their toes. And mobiles hang perfectly because they, too, balance. Learn all about the scientific principles that allow a gymnast to perform incredible tricks on the balance beam and an acrobat to walk easily across a thin wire. Illustrated.
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Add this copy of Mobiles: Building and Experimenting With Balancing Toys to cart. $7.11, very good condition, Sold by HPB Inc. rated 4.0 out of 5 stars, ships from Dallas, TX, UNITED STATES, published 1993 by Beech Tree Books.
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Add this copy of Mobiles: Building and Experimenting With Balancing Toys to cart. $7.80, fair condition, Sold by ThriftBooks-Reno rated 5.0 out of 5 stars, ships from Reno, NV, UNITED STATES, published 1993 by Beech Tree Farm Pubns.
Add this copy of Mobiles: Building and Experimenting With Balancing Toys to cart. $37.09, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Santa Clarita, CA, UNITED STATES, published 1993 by Beech Tree Farm Pubns.
Add this copy of Mobiles: Building and Experimenting With Balancing Toys to cart. $37.63, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Santa Clarita, CA, UNITED STATES, published 1993 by Beech Tree Books.
Add this copy of Mobiles: Building and Experimenting With Balancing Toys to cart. $65.07, new condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Santa Clarita, CA, UNITED STATES, published 1993 by Beech Tree Farm Pubns.
