Hi Chris:
The energy of bow is that to come from in 15000 Kgfs Horn Cm/kg with wooden 11000 Kgfs Cm/kg, the majorest is Sinew25000 Kgf Cm/kg and can many layers of bedding . So physical strength bending can be infinite greatly . As long as you have physical strength using enough it .
But everybody does not think that the bamboo wood that this is general expects , and will soak as a result of paint when the system is bent - > is dry - > paint - >'s complicated worker's order such as dry etc , and when painting dryly , the sour double key of his not saturated fat is by oxygen attack and opening , mutually forms ether key and cross-linking . The major functional group hydroxyl of Mu Zhu fibre also can be attacked the double key , and the paint mutually cross-linking in dry condition evaporation . The compound material that forms so , and pure Mu Zhu is different completely . Still having other participation like horn , muscle and glue etc material , the many of strength far are eager to excel than the single material .
The cord with Pi Ningcheng of animal of bowstring is made . The chord in this picture is made with the skin of donkey , and the rub that the vegetable oil repeats is used , and can achieving transparent effect is beautiful . The thread that still can use the cotton to make is that is more difficultly to make and is that noble uses .
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