I used : abacus crystal : 20 bead 4mm, 20 bead 6mm Soft copper wire 20 gauge ( wire diameter 0.8mm ) : 2 strands, each 45cm ...

When I made this earring I thought of the little tornadoes that wrap around the raindrops When I was a child, when it rained ...

Ancient mental calculation systems like Vedic mathematics, abacus techniques, and the Trachtenberg system are experiencing a ...