While there he encountered the young Arthur C. Clarke , who was an RAF radar technician .
Alvarez spent the summer of 1943 in England testing GCA , landing planes returning from battle in bad weather , and also training the British in the use of the system .
While there Alvarez encountered the young Arthur C. Clarke , who was an RAF radar technician .
Alvarez spent the summer of 1943 in England testing GCA , landing planes returning from battle in bad weather , and also training the British in the use of the system .