Fuses...breaking down a time delay fuse.

I was bored and decided to see what was inside these burnt fuses. The electrician at work saves them for me.





I banged my hammer on one end to take the cap off.
Inside is some sand/glass looking material.





Heres the white material:






This metal strip came out of the open end when i pour the white stuff out:







and after smashing the other end off this is what i found:



I'll test the metals later to see what i got, and that white stuff and plastic tube went in the garbage ...took about 2 mins to disassemble.