Related by context. Frequent words. (Click for all words.) 70 SkySails 58 PlanetSolar 48 Rudolf Diesel 47 hydrofoils 47 kite 46 Horizon Fuel Cell 45 CEO Harry Schoell 44 sailing dinghy 44 Nicolas Hayek 44 Vikram Sarabhai 44 sailboard 43 hydrodynamics 43 inventor 43 ornithopter 42 sailplane 42 Johannes Kepler 42 kitesurfing 42 Dave Arneson 42 Albert Hofmann 41 Bernoulli 41 Igor Sikorsky 41 Franz Josef Paefgen 41 Stephen Wolfram 41 Raindrop Geomagic 41 Electrotherm 41 Ferdinand Porsche 41 Christian von Koenigsegg 41 Superyachts 41 Microlight 41 Rinspeed 41 hydrodynamic 40 Transas 40 coracle 40 Biomimicry 40 Kitesurfing 40 windlass 40 Hobie Cat 40 propellers 40 ultrasonics 40 Herbert Kohler 40 gliders 40 Fergason 39 Sailboats 39 Robert Stempel 39 Dean Kamen 39 Propellers 39 Tesla coil 39 Skycar 39 BKFK 39 inventor Dean Kamen 39 Josiah Wedgwood 39 rudders 39 AUVs 39 airfoils 39 Boatbuilding 39 sailboats 39 Engelbart 39 outrigger canoes 39 Wang Chuanfu 39 propeller 39 furling 38 kites 38 sailplanes 38 jet propulsion 38 Submersible 38 autogyro 38 watersport 38 burgee 38 Hovercraft 38 SCUBA diving 38 kite boarding 38 hydrofoil 38 lightweight composites 38 Ruth Handler 38 Rajshekhar 38 Erno Rubik 38 piezo electric 38 microrobots 38 Yves Rossy 38 glider 38 Superbus 37 Lego Mindstorms 37 kayaks canoes 37 centerboard 37 Mercury MerCruiser sterndrives 37 gyroplane 37 computational fluid dynamics CFD 37 Gottlieb Daimler 37 sails 37 Motorised 37 Ultralight 37 Kazuo Inamori 37 AC Propulsion 37 TrueMill 37 kite surfers 37 Homi Bhabha 37 Peratech 37 Sarnoff Corporation 37 trackless train 37 Piezoelectric 37 streamer flies