Editing Shape-memory alloy (section)

==== Essential tremor ====
Traditional active cancellation techniques for tremor reduction use electrical, hydraulic, or pneumatic systems to actuate an object in the direction opposite to the disturbance. However, these systems are limited due to the large infrastructure required to produce large amplitudes of power at human tremor frequencies. SMAs have proven to be an effective method of actuation in hand-held applications, and have enabled a new class active tremor cancellation devices.<ref>{{cite thesis |last1=Pathak |first1=Anupam |year=2010 |title=The Development of an Antagonistic SMA Actuation Technology for the Active Cancellation of Human Tremor |hdl=2027.42/76010 }}</ref> One recent example of such device is the [[Liftware]] spoon, developed by [[Verily Life Sciences]] subsidiary [[Lift Labs]].