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$16.72 $4.48
$14.50
$11.50
$8.50
$5.50
$2.50
Sep
Oct
Nov
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Jan
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Apr
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2016
$10.79, Aug 12 - Aug 21 $8.96, Aug 12 - Sep 10 $6.68, Aug 12 - Aug 21 $15.98, Aug 25 5:43 pm $8.96, Aug 12 - Sep 10 $6.69, Aug 25 - Sep 13 $13.28, Aug 29 - Sep 2 $8.96, Aug 12 - Sep 10 $6.69, Aug 25 - Sep 13 $15.28, Sep 6 - Nov 8 $8.96, Aug 12 - Sep 10 $6.69, Aug 25 - Sep 13 $15.28, Sep 6 - Nov 8 $6.69, Sep 13 9:55 pm $6.69, Aug 25 - Sep 13 $15.28, Sep 6 - Nov 8 $8.80, Sep 17 6:58 pm $8.80, Sep 17 6:58 pm $15.28, Sep 6 - Nov 8 $10.01, Sep 21 - Sep 23 $8.83, Sep 21 4:20 pm $15.28, Sep 6 - Nov 8 $10.01, Sep 21 - Sep 23 $8.79, Sep 23 - Oct 13 $15.28, Sep 6 - Nov 8 $9.73, Sep 27 - Oct 13 $8.79, Sep 23 - Oct 13 $15.28, Sep 6 - Nov 8 $9.61, Oct 17 - Feb 3 $8.67, Oct 17 5:26 pm $15.28, Sep 6 - Nov 8 $9.61, Oct 17 - Feb 3 $8.57, Oct 19 4:37 pm $15.28, Sep 6 - Nov 8 $9.61, Oct 17 - Feb 3 $8.36, Oct 23 1:47 pm $15.28, Sep 6 - Nov 8 $9.61, Oct 17 - Feb 3 $8.13, Oct 27 11:25 am $15.28, Sep 6 - Nov 8 $9.61, Oct 17 - Feb 3 $7.89, Oct 31 11:23 am $15.28, Sep 6 - Nov 8 $9.61, Oct 17 - Feb 3 $7.71, Nov 4 11:10 am $15.28, Sep 6 - Nov 8 $9.61, Oct 17 - Feb 3 $7.55, Nov 8 2:00 pm $15.29, Nov 12 - Nov 16 $9.61, Oct 17 - Feb 3 $7.39, Nov 12 4:40 pm $15.29, Nov 12 - Nov 16 $9.61, Oct 17 - Feb 3 $7.23, Nov 16 11:30 pm $15.30, Nov 21 8:38 am $9.61, Oct 17 - Feb 3 $7.03, Nov 21 8:38 am $16.72, Nov 25 - Mar 16 $9.61, Oct 17 - Feb 3 $6.85, Nov 25 7:19 pm $16.72, Nov 25 - Mar 16 $9.61, Oct 17 - Feb 3 $6.71, Nov 30 1:26 pm $16.72, Nov 25 - Mar 16 $9.61, Oct 17 - Feb 3 $6.54, Dec 5 10:49 am $16.72, Nov 25 - Mar 16 $9.61, Oct 17 - Feb 3 $6.37, Dec 10 1:18 pm $16.72, Nov 25 - Mar 16 $9.61, Oct 17 - Feb 3 $6.15, Dec 15 2:28 pm $16.72, Nov 25 - Mar 16 $9.61, Oct 17 - Feb 3 $5.76, Dec 20 1:43 pm $16.72, Nov 25 - Mar 16 $9.61, Oct 17 - Feb 3 $5.49, Dec 25 8:42 am $16.72, Nov 25 - Mar 16 $9.61, Oct 17 - Feb 3 $4.97, Dec 30 11:04 am $16.72, Nov 25 - Mar 16 $9.61, Oct 17 - Feb 3 $4.87, Jan 4 6:33 am $16.72, Nov 25 - Mar 16 $9.61, Oct 17 - Feb 3 $4.81, Jan 9 4:40 am $16.72, Nov 25 - Mar 16 $9.61, Oct 17 - Feb 3 $4.71, Jan 14 2:40 am $16.72, Nov 25 - Mar 16 $9.61, Oct 17 - Feb 3 $4.62, Jan 19 3:49 am $16.72, Nov 25 - Mar 16 $9.61, Oct 17 - Feb 3 $4.55, Jan 24 4:57 am $16.72, Nov 25 - Mar 16 $9.61, Oct 17 - Feb 3 $4.48, Jan 29 6:17 am $16.72, Nov 25 - Mar 16 $9.61, Oct 17 - Feb 3 $5.56, Feb 3 6:25 am $16.72, Nov 25 - Mar 16 $10.34, Feb 8 - Feb 13 $5.54, Feb 8 7:49 am $16.72, Nov 25 - Mar 16 $10.34, Feb 8 - Feb 13 $5.44, Feb 13 1:34 pm $16.72, Nov 25 - Mar 16 $10.15, Feb 18 10:01 pm $8.71, Feb 18 10:01 pm $16.72, Nov 25 - Mar 16 $9.66, Feb 24 - Mar 27 $8.53, Feb 24 10:44 am $16.72, Nov 25 - Mar 16 $9.66, Feb 24 - Mar 27 $8.79, Mar 4 - Mar 27 $12.96, Mar 27 2:19 pm $9.66, Feb 24 - Mar 27 $8.79, Mar 4 - Mar 27 $12.83, Apr 7 11:57 pm $9.31, Apr 7 11:57 pm $8.77, Apr 7 11:57 pm 207,552 1,578,892
1,953,125
976,563
488,281
0
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2016
Price Details
New
Latest
$12.83 1 day ago
Highest
$16.72 Nov 25, '15
Lowest
$10.79 Aug 12, '15
Average
$15.29 (30d avg)
Added
Aug 12, 2015
3rd Party New
Latest
$9.31 1 day ago
Highest
$10.34 Feb 8, '16
Lowest
$6.68 Aug 12, '15
Average
$9.66 (30d avg)
Added
Aug 12, 2015
3rd Party Used
Latest
$8.77 1 day ago
Highest
$8.96 Aug 12, '15
Lowest
$4.48 Jan 29, '16
Average
$8.79 (30d avg)
Added
Aug 12, 2015
Sales Rank
30 day average: 924,067 981,675
Product Description
invites children ages 9 and up to explore the innovation and physical science behind the amazing waterways and barriers our world depends on. Trivia and fun facts illustrate engineering ingenuity and achievements from ancient aqueducts to the Suez Canal and the Hoover Dam. Readers will discover that engineers and builders alike put their lives on the line to advance civilization, experiencing triumphs and tragedies in building big. Through dazzling success and heartbreaking failure, they developed increasingly sophisticated tools and building methods.
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