Scissors were invented by da Vinci?

As early as before the Da Vinci era 1 0,600 years ago, the scissors in the shape of "intersecting and bending rings" appeared in the Western Han Dynasty (65438+February, 202-8 years ago). This kind of scissors is made of a cooked iron bar, forged into a knife at both ends, and then twisted in half.

This kind of scissors looks a bit like big tweezers or U-shaped scissors commonly used in fishing. There is no supporting shaft in the middle of this clock shear, and it is operated by the elastic force generated by the softening treatment of iron bars. Obviously, this kind of scissors is inconvenient to use. This kind of scissors can be seen that the oldest material object was unearthed in Baoji, Shaanxi Province in the 1990s. This pair of scissors is "straight-backed and straight-edged, with the front end flush and the back of the blade crossed, partially wound in an' 8' shape, with a total length of 12.8 cm."