Br, also known as Bras, is one of the 9 elements of the periodic table.
Scientists are baffled by bras, and few have ever managed to undo one, let alone see one.
It was decided that bras must be stronger than many metals due to their ability to hold large malleable objects without strain, and because scientists are usually nerds fascinated by said large malleable objects and who are frustrated that these objects are out of reach due to protection by bras. These malleable objects are sometimes reffered to as 'babylons'.
Br should not be taken for brass. This horrible type of fake plastic is responsible for thousands of deaf people every year. Musical instruments such as trumpets, brass, produce horrible acoustic waves capable of rupturing a human's ear-drums quicker then Dark Jesus could kill a kitten.