Which offers the best summary for the argument and claims made in the kennedy speech?

Many Americans make the mistake of assuming that space research has no values here on earth. Nothing could be further from the truth. Just as the wartime development of radar gave us the transistor, and all that it made possible, so research in space medicine holds the promise of substantial benefit for those of us who are earthbound. For our effort in space is not as some have suggested, a competitor for the natural resources that we need to develop the earth. It is a working partner and a coproducer of these resources. And nothing makes this clearer than the fact that medicine in space is going to make our lives healthier and happier here on earth.

I give you three examples: first, medical space research may open up new understanding of man's relation to his environment. Examinations of the astronaut's physical, and mental, and emotional reactions can teach us more about the differences between normal and abnormal, about the causes and effects of disorientation, about changes in metabolism which could result in extending the life span. When you study the effects on our astronauts of exhaust gases which can contaminate their environment, and you seek ways to alter these gases so as to reduce their toxicity, you are working on problems similar to those in our great urban centers which themselves are being corrupted by gases and which must be clear.

And second, medical space research may revolutionize the technology and the techniques of modern medicine. Whatever new devices are created, for example, to monitor our astronauts, to measure their heart activity, their breathing, their brain waves, their eye motion, at great distances and under difficult conditions, will also represent a major advance in general medical instrumentation. Heart patients may even be able to wear a light monitor which will sound a warning if their activity exceeds certain limits. An instrument recently developed to record automatically the impact of acceleration upon an astronaut's eyes will also be of help to small children who are suffering miserably from eye defects, but are unable to describe their impairment. And also by the use of instruments similar to those used in Project Mercury, this Nation's private as well as public nursing services are being improved, enabling one nurse now to give more critically ill patients greater attention than they ever could in the past.

And third, medical space research may lead to new safeguards against hazards common to many environments. Specifically, our astronauts will need fundamentally new devices to protect them from the ill effects of radiation which can have a profound influence upon medicine and man's relations to our present environment.

Here at this center we have the laboratories, the talent, the resources to give new impetus to vital research in the life centers. I am not suggesting that the entire space program is justified alone by what is done in medicine. The space program stands on its own as a contribution to national strength. And last Saturday at Cape Canaveral I saw our new Saturn C-1 rocket booster, which, with its payload, when it rises in December of this year, will be, for the first time, the largest booster in the world, carrying into space the largest payload that any country in the world has ever sent into space.

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