What a puff piece. >Prof Cronin admits that creating even small aircraft out of chemicals "would be very challenging". Hey then goes on to say it might work "

What a puff piece. >Prof Cronin admits that creating even small aircraft out of chemicals "would be very challenging". Hey then goes on to say it might work "some time in the future". Well sure, along with cold fusion and eternal life. "Someday" is not much of a prediction, especially for a business!