How does a jumbo jet weighing 350 tonnes and carrying 500 people stay in the air? How does a hummingbird hover over a flower with pinpoint precision? Decode the mysteries and discover the scientific... This description may be from another edition of this product.
ThriftBooks sells millions of used books at the lowest everyday prices. We personally assess every book's quality and offer rare, out-of-print treasures. We deliver the joy of reading in recyclable packaging with free standard shipping on US orders over $15. ThriftBooks.com. Read more. Spend less.