Wringing
If you (like me) read the entire article without really getting an intuition for these "gauge blocks", here they are in action:<p><a href="https://www.youtube.com/watch?v=gbsd2OpPOMw" rel="nofollow">https://www.youtube.com/watch?v=gbsd2OpPOMw</a><p><a href="https://www.youtube.com/watch?v=2lOOl3VxOtE" rel="nofollow">https://www.youtube.com/watch?v=2lOOl3VxOtE</a>