"We can realize our dreams. It just requires a little bit of determination." So says Dr. Graham Dorrington, an aerospace engineer and professor at Queen Mary, University of London. Like most people, Dr. Dorrington has often dreamt of flying high over town and country; only Dr. Dorrington finds himself in the unique position of making our idle fancies his reality. Since 1992, Dorrington has been hard at work developing a lightweight, easily maneuverable airship — sort of a helium-filled miniblimp — that would capable of exploring Earth's last unspoiled frontier: the rich, biodiverse canopies of the world's rain forests. Having at last received enough funding for a cin...