page 



98 



FOUR AND TWENTY SAMPLES BAKED IN A 

 PIE. Even the humble pie plate played a useful 

 part in the complex instrumentation program used 

 at Bikini. Modified as shown above the pie plates 

 were made into thermal plaques for measuring 

 type and intensity of optical radiation from the 



bomb. Mineral samples of various kinds were 

 placed at the small holes shown, and the plates 

 then filled with Plaster of Paris. Radiation from 

 the bomb passed through the holes, producing 

 measurable changes in the physical characteristics 

 of the samples. 



