Friday, 19 September 2014

Sketchy Fact #58: Caught in the Crosshairs

Spider silk was used to make the crosshairs in rifle sites until the 1960's because it is 40 times finer than human hair.

2 comments:

Susan said...

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unknown said...

Caught in the crosshairs, Different sketch are better where you are going to see such best essay writing service review designs. It were be important for those who ever start to design such places which are good when you show your complete design.