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THE ULTRASTABLE SYSTEM 



apt to be tedious and unconvincing. A better demonstration can 

 be given by a machine, built so that we know its nature exactly 

 and on which we can observe just what will happen in various 

 conditions. (We can describe it either as ' a machine to do our 

 thinking for us' or, more respectably, as ' an analogue computer \) 

 One was built and called the ' Homeostat '. Its construction, 

 and how it behaved, will be described in the next chapter. 





«A*5 







99 



