But no one found evidence that they had been used to make weapons.

Actually, there looked to be enough parts to make several weapons.

There may be some way to find things here that might make weapons.

He could see nothing in the place that might make a weapon.

But did he have any chance of making an effective weapon?

If so, how can they do it in a world without materials to make weapons?

And of course metal could also be used to make weapons.

Such a plant could be used in making nuclear weapons.

Never to make a weapon for one man to kill another.

Only that somebody had discovered how to make better weapons.