Zothecula writes: A new report drafted by Airbus as part of its “Smarter Skies” initiative sees the aircraft manufacturing company looking toward 2050 and beyond, in order to consider what can be done to meet the expected growth in future air travel sustainably. The ambitious plans put forward include assisted take-off, free-glide landings, and aircraft flying in formation. Link to Original Source
"The fundamental principle of science, the definition almost, is this: the
sole test of the validity of any idea is experiment."
-- Richard P. Feynman