?<div style="width: 860px; margin: 0 auto; font-family: Arial、 Helvetica、 sans-serif; font-size: 23px; color: #000;"><div style="text-align: center;"><div style="width: 860px; color: #2B4793; font-size: 35px;">Pathfinders Leonardo DaVinci Aerial Screw Wood Kit</div><img src="//agdetail.image-gmkt.com/m430/477/458/532458477/img/agdetail.image-gmkt.com/477/458/532458477/img/kir021085.kir.jp/Doubleimpact/picture/B00865U2RW-0.jpg" /><br /><div><a href="http://kir021085.kir.jp/Doubleimpact/picture/B00865U2RW-0.jpg" target="_blank"><img src="http://kir021085.kir.jp/Doubleimpact/picture/B00865U2RW-0.jpg" width="200px" /></a>&nbsp;<a href="http://kir021085.kir.jp/Doubleimpact/picture/B00865U2RW-1.jpg" target="_blank"><img src="//agdetail.image-gmkt.com/m430/477/458/532458477/img/agdetail.image-gmkt.com/477/458/532458477/img/kir021085.kir.jp/Doubleimpact/picture/B00865U2RW-1.jpg" width="200px" /></a></div></div><div><div style="width: 850px; padding-left: 10px; height: 40px; line-height: 40px; border-bottom: solid 5px #00CC00; color: #2B4793; font-size: 35px; font-weight: bold;">Description</div><p style="width: 820px; padding-left: 20px; padding-right: 20px;"><ul><li>Comes complete with all pieces pre-cut and ready to assemble</li><li>Glue included</li><li>Suitable for beginner model makers</li><li>Easy to understand instructions</li></ul>One of Leonardo's most iconic images、 the Aerial Screw (also known as the Helicopter) illustrates the ingenuity of da Vinci、 and indicates his obsession with flying. While this idea may never have got off the ground、 for some basic technical reasons、 it gave us an insight into the different ways in which Leonardo considered the challenge of human powered flying、 and defines him as an inventor well ahead of his time. While it is often referred to as a helicopter、 the premise of the lift to make it rise is more like archimedes screw than the rotors of a helicopter. This model uses one of the bevel gears he drew in his codices and creates a nice 2 to 1 increase in speed of the crankshaft、 so the mast spins quickly、 illustrating the manner in which this machine would have worked. Kit features pieces that are drilled and pegged for strength、 the canopy and support structure are removeable for experimenting、 and lots of interesting information about how it works. Kit stands about 15" tall and 9" across.</p><div style="width: 850px; padding-left: 10px; height: 40px; line-height: 40px; border-bottom: solid 5px #00CC00; color: #2B4793; font-size: 35px; font-weight: bold;">About Us</div><p style="width: 820px; padding-left: 20px; padding-right: 20px;">We are Japanese seller living in Japan.<br />We promise to supply genuine product in Japan.<br />If you have questions please feel free to ask us.</p><div style="width: 850px; padding-left: 10px; height: 40px; line-height: 40px; border-bottom: solid 5px #00CC00; color: #2B4793; font-size: 35px; font-weight: bold;">International Buyers - Please Note:</div><p style="width: 820px; padding-left: 20px; padding-right: 20px;">All items are delivered from Japan directly and it takes one to two weeks to deliver to your country.<br />Sometimes deliveries could be delayed for local situation.<br />Some product is supplied from manufacturer due to stock situation.<br />Electric appliances - Please check voltage before your purchase.Some product is only for 110V for Japan use and you need transformer.<br />Pre sale product - Please ask updated release day before purchase <br />Import duties、 taxes and charges are not included in the item price or shipping charges.These charges are the buyer's responsibility.</p><div style="width: 850px; padding-left: 10px; height: 40px; line-height: 40px; border-bottom: solid 5px #00CC00; color: #2B4793; font-size: 35px; font-weight: bold;">Other</div><p style="width: 820px; padding-left: 20px; padding-right: 20px;">Please feel free to ask if you have the product which I do not list.I will do my best to provide at competitive price.</p></div></div>