Harsh chemicals such as hair straightening compounds and permanents should be avoided. There are several ways of permanently straightening hair. Officials focused on widening, straightening, and smoothing the roads, while also adding footpaths. Morgan also discovered and developed a chemical hair-processing and straightening solution. A physical manifestation of cysteine-cystine equilibrium is provided by hair straightening technologies. A rose bud torch is used to heat metals for bending, straightening, etc. Cockles are capable of "jumping" by bending and straightening the foot. Heckling was the preparation of flax for spinning by splitting and straightening the flax fibres. The entire process, including conservation and straightening of the warped wood, took fourteen years. Excessive straightening often results in split ends. Johann Tulla had the goal of shortening and straightening the Upper Rhine. Curve straightening was later deemed too expensive. Other motions allow for the straightening of the "kimono" and the "hakama". The female indicates readiness to mate by straightening out and allowing their bodies to align. It achieved its objectives of straightening the Allied line and taking the town of Hamel.