The Sword of Goujian nonetheless has a pointy blade and exhibits no indicators of tarnish. To know why, scientists at Fudan College and CAS used trendy tools to find out the chemical composition of the sword, as proven within the desk under.
The physique of the blade is especially product of copper, making it extra pliant and fewer prone to shatter; the sides have extra tin content material, making them more durable and able to retaining a sharper edge; the sulfur decreases the possibility of tarnish within the patterns.
It’s probably that the chemical composition, together with the virtually air-tight scabbard, led to the distinctive state of preservation.
Whereas on mortgage to Singapore for show as a part of a cultural change exhibition in 1994, an employee unintentionally bumped the sword towards the case, leading to a 7mm crack on the sword. Since then, China doesn’t enable the sword to be taken in a foreign country, and in 2013 formally positioned the sword onto the listing of Chinese cultural relics forbidden to be exhibited overseas.