The ancient Chinese were the first to use them.
Titanium is not made in bombs and is not an explosive.
More & higher yield atomic bombs, I guess.
Bombs were made from a steel casing filled with various explosives.
Brothers Tamerlan and Dzhokhar Tsarnaev made the bombs and planted them at the marathon.
When bombs are made by amateurs, rather than by munitions factories, they are likely to be crude.
Los Alamos
They were made by the United States during WW2.
They are made up of atomic bombs,energy
None, the US currently only refurbishes existing bombs.
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In the United States.
NM