IT IS rocket science - air-breathing rocket engine for plane and space trave

According to Prof.Ken Naitoh of Waseda University   six major challenges lie in the range of scales from nano to tera: 
(I) modern fluid dynamics of turbulence; 
(II) non-equilibrium macroscopic quantum mechanics;
(III) onto-biology; 
(IV) bacteria application for environmental and medical problems; 
(V) hypersonic and automotive engines; and (VI) economic models.
(VI) economic models.
Number 5 in theis list is: Hypersonic and automotive engines. 

Six major challenges lie in the range of scales from nano to tera: (I) modern fluid dynamics of turbulence; (II) non-equilibrium macroscopic quantum mechanics; (III) onto-biology; (IV) bacteria application for environmental and medical problems; (V) hypersonic and automotive engines; and (VI) economic models.
Ultimate goals are the exploration of life in the cosmos using spacecraft with our proposed new aerospace engine and finding potential answers to the question "What is life?”

REF:
It is rocket science - air-breathing rocket engine for plane and space travel | IOM3: The Global Network for Materials, Minerals & Mining Professionals

Full Article on The 6 Major Challenges

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