garymortimer writes "The TechJect Robot Dragonfly is a multi-engineering design. It requires everything from aerodynamics, machine design, mechatronics, electronics, communication systems, flight control software, user-interfaces and much more. We’ve put in a lot of work to bring harmony to chaos and bring the dragonfly to life; however, getting something robust enough to endure the elements, strong enough to outlast crashes and accidents; smart enough so everyone can operate them easily; and finally cheap enough so everyone can afford one, we have to professionally manufacture the robot bugs; which is an expensive proposition." Link to Original Source
Quantum Mechanics is a lovely introduction to Hilbert Spaces!
-- Overheard at last year's Archimedeans' Garden Party