Simple sea waves copper ring - How to make wire jewelry This ring pattern can be customized when used if you are a beginner, you should watch a simple form in advance to be able to keep up with ...

* I usually do the size that fits me ( the ring is 1.5cm in diameter. about size 5), so that might be quite small compared to most people. You can change it to fit your size.

Researchers manipulated water waves to move ping pong balls with a level of precision that seems straight out of a sci-fi movie.