5.5-ft OD by 4-in. wall; weight in 

 air = 4,400 lb 



Inside steel pipe capsule, 4-in, OD 

 by 10-in. long, weight in air = 15 lb 



Dry cell batteries inside PVC pipe 



Lead between batteries and clock 



Aluminum pipe, 10-in. OD by 

 12-in. long, by 1/8-in. wall 



Syntactic foam, 4-in. min width by 

 7-in. max width by 14-in. long by 

 4-in. deep 



1/2-in. diameter 



Titanium Ti-6A1-4V; conical plug, 

 4-in. major diameter and 3-in. minor 

 diameter 



Titanium, 1/2-in. -diameter rod, 3.5-in. 

 radius 



Plastic tag with sphere number engraved 

 (sphere number also stamped on most 

 metal parts) 



5/8-in. steel chain wrapped around 

 sphere and through padeyes 



2-1/4-in. -diameter steel chain, die-lock 

 type, total length 53 ft, bottom links 

 welded in triangle shape so hanging 

 length = 42 ft, weight in air = 2,630 lb 



18 in. sq by 14 in. high; weight in air 

 = 400 1b 



Note: Items b, c, d, e, f, and g were used with only Spheres 1-6. 



Figure 5. Details of sphere assembly. 



