A traditional Scottish event where cloth was waulked to the accompaniment of folk songs.

Any of various fabriclike materials made from long fibres bonded together by chemical or mechanical processes.

(topology) A knot that has a knot diagram in which, in traveling along the knot, one passes through intersections alternatingly: over, under, over, under, etc.

A lifelike female manikin used for teaching cardiopulmonary resuscitation.