HI, I had a bead that compose of approx.70 percent copper and 15% silver and 5% gold How can i seperate the gold ?If i piut the bead in 50/50 nitric acid the copper will dissolve But will the silver dissolve too? Wont it be push out by the copper ions in the nitrate solution ? Because of the electro...

HI, I would like to get help fixing a mess i did trying to refine silver using silver cholride and NaOh. I have filtered siver cholride from nitric using salt. Washed well with distiled water. Next i have added NaOh and stirred until all powder was dark color. Next add caro (syrop) to try and get si...

HI, I would like to model a suspension bridge, but I can not model a steel wire rope with an initial deformation. Do I have to use a circular metal profile or are there predefined cable sections? Please help. I didn't find the right solution from the Internet. References: https://forum.scia.net/view...

HI, Can anyone help me model wire ropes in SCIA Engineer 2008.1? Im designing a lattice structure which lies horizontal, its hinged at its root and is supported by two sets of wire rope guys. The previous software I was using couldn't understand this concept, I think it couldn't understand that the ...

HI, I belong to a group of fiber artists, and I'm interested in Turkish handicrafts.I'd appreciate some suggestions of what small, relatively inexpensive, not-mass-produced handicrafts I might bring back as gifts for the other artists in my group and where I might find them. I'm especially intereste...

HI, I need to find a place or two where I can buy material ( wire, beads, tools, etc) to make jewelry.I brought my stuff with me so I have something to do during the day, but I'll be running out pretty soon so I need to restock ASAP.Please advice if you know any place in Dist 1,2 where I could get t...