Pitchblende is uranium ore, so any nuclear weapon which used uranium in some form or other (tamper, core, used with plutonium, secondary casing) would need uranium, which is initially obtained from the mining and refining of pitchblende, for example, Little Boy.
Tanks
The U-boat submarine
It may not sound like a killer, but the main weapon the Germans employed was fear, fear of their military might at the start of their French campaign, scarring Winston Churchill with their use of unrestricted submarine warfare, and using propaganda in conquered territory's to scare people with altered views of the allies, minority groups and the German war machine.
A survey taken among soldiers and their commanding officers after World War I voted the machine gun the most effective/devastating weapon of that war. A similar study done after WW II named field artillery to this dubious honor.
The two main weapons used during the Civil War would be the 1855 Enfield and the 1861 Springfield. The Enfield was imported from England and mainly saw use in the CS, on the other hand, the 1861 Springfield was made in the US and saw extensive use in the US armies. Both were rifle-muskets, meaning that they had rifling to increase accuracy (Think of how a football spins.) and were loaded via the muzzle of the rifle.
the main element extracted was radium
The main weapon of the B-52 is missiles or bombs.
Yes he had a lightning bolt as his weapons but his main weapon was his 20 foot long master bolt
Trisul is the main weapon of the Hindu God Shiva
His main weapon was a sickle, which Zeus used to chop him into peices.
Demeter's weapon was not physical. Her weapon was related to her food-related power. Hence, her main weapon was the power of starvation.
Didn't really have a weapon. She was the goddess of marriage, but she was insanely jealous.
His Sniper Rifle.
her staff is
Optimus Prime's main weapons are his battleblades.
The main fuel source for the work of the cell is the mitochondria.
The main weapon of the Vikings was the sword.