An examination of the science of aviation, with experiments to prove the theories of history and current science. Projects include making "twirly-whirlies" out of pencils, cardboard, scissors and drawing pins to demonstrate how helicopter rotors rotate, and creating paper aeroplanes.
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An examination of the science of aviation, with experiments to prove the theories of history and current science. Projects include making twirly-whirlies out of pencils, cardboard, scissors and drawing pins to demonstrate how helicopter rotors rotate, and creating paper aeroplanes.
Did you know that in the 1400s Leonardo da Vinci drew pictures of flying machines? Long before planes and rockets ever existed, humans dreamed of taking flight. Examine the science of aviation--and try numerous experiments that prove all the theories. Using cardboard, a ruler, and other everyday items, learn how air currents work. "Twirly-Whirlies," made out of pencils, cardboard, scissors, and thumbtacks, demonstrate how helicopter rotors operate. With an empty spool, discover the power of centrifugal force. Create a variety of paper airplanes, gliders, and kites and watch them zoom into the skies. Some of these projects can even involve the whole family! And while you're having fun, you're effortlessly gaining a real understanding of Bernoulli's principle, and Newton's law of gravity. 128 pages, 75 b/w illus., 5 3/8 x 8 1/4. NEW IN PAPERBACK.
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Versandziele, Kosten & DauerAnbieter: Wonder Book, Frederick, MD, USA
Zustand: Very Good. Zweifel, Frances (illustrator). Very Good condition. With remainder mark. A copy that may have a few cosmetic defects. May also contain light spine creasing or a few markings such as an owner's name, short gifter's inscription or light stamp. Bestandsnummer des Verkäufers L06A-02758
Anzahl: 1 verfügbar
Anbieter: Wonder Book, Frederick, MD, USA
Zustand: Very Good. Zweifel, Frances (illustrator). Very Good condition. With remainder mark. A copy that may have a few cosmetic defects. May also contain a few markings such as an owner's name, short gifter's inscription or light stamp. Bestandsnummer des Verkäufers L05O-00824
Anzahl: 1 verfügbar
Anbieter: Better World Books, Mishawaka, IN, USA
Zustand: Very Good. Zweifel, Frances (illustrator). Former library book; may include library markings. Used book that is in excellent condition. May show signs of wear or have minor defects. Bestandsnummer des Verkäufers 45108037-6
Anzahl: 1 verfügbar
Anbieter: Better World Books, Mishawaka, IN, USA
Zustand: Very Good. Zweifel, Frances (illustrator). Used book that is in excellent condition. May show signs of wear or have minor defects. Bestandsnummer des Verkäufers 46455148-6
Anzahl: 1 verfügbar
Anbieter: The Book Cellar, LLC, Nashua, NH, USA
paperback. Zustand: New. Zweifel, Frances (illustrator). Has stickers on cover. Otherwise in new condition.Over 1,000,000 satisfied customers since 1997! Choose expedited shipping (if available) for much faster delivery. Delivery confirmation on all US orders. Bestandsnummer des Verkäufers 440628
Anzahl: Mehr als 20 verfügbar
Anbieter: ThriftBooks-Dallas, Dallas, TX, USA
Paperback. Zustand: Very Good. No Jacket. Zweifel, Frances (illustrator). May have limited writing in cover pages. Pages are unmarked. ~ ThriftBooks: Read More, Spend Less 0.35. Bestandsnummer des Verkäufers G080693932XI4N00
Anzahl: 1 verfügbar
Anbieter: M & M Books, ATHENS, GA, USA
Paperback. Zustand: Fine. No Jacket. Zweifel, Frances (illustrator). 1st Paperback Edition. Bestandsnummer des Verkäufers 129886
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