Science: For Hypersonics

Most branches of technology have a backlog of unfinished business: basic principles worked out theoretically but not yet put to use. With jet propulsion, it is just the opposite. Practical jet engineers are already working close to the limits of theoretical knowledge. Ahead of them lies a blank area which the "longhairs" (theoretical men) have hardly begun to explore.

To refill the reservoir of jet theory, the Daniel and Florence Guggenheim Foundation announced this week that it will grant $500,000 to Princeton University and California Institute of Technology for two jet propulsion centers. Top position in each will be a Goddard professorship...

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