Need to whack the weeds in your orchard? Cringing at the drudgery and incessant blare of the mower? Imagine instead long sweeps of an elegant scythe cutting your grass and pesky weeds in blissful, meditative silence. That is the power of the "scythe revolution" sweeping North America. Written by a master of the scythe, professionally trained in Austria, and drawing deeply on research into ori…