THE PROBLEM

_It is hard enough to fix a new piece of scientific equipment when it

goes out of order in the laboratory. And when the equipment is sailing

around the earth a couple of thousand miles up in the sky a repair job

ought to be impossible. But during the last two months of 1962 we found

this not to be true at all. That was when the Telstar I satellite began

to misbehave and eventually would not obey the commands we sent it from

the ground. This presented us with a nice little problem: We had to find

out exactly what was wrong with the satellite and then—the really tough

job—devise a way to cure the trouble. We were able, finally, to do both

these things, after a combination of logical deduction, trial-and-error

experimentation, and laboratory testing—plus a certain amount of plain

good luck. Our “cure,” unfortunately, turned out to be only a temporary

one, for our patient had a relapse some weeks later. However, the story

of how we went about doing our never-before-attempted task should give

you an idea of the things you have to improvise in the laboratory when

an experiment doesn’t work out exactly as you had planned._

Satellite Communications Physics · 第 57 / 75 题