hysteresis
/ˌhɪstəˈriːsɪs/
Definition
A phenomenon where the state of a system depends not just on its current input, but also on its history, specifically characterized by a lag or gap between switching states when force is applied and removed.
Etymology
Derived from the Greek word 'hysterein,' meaning 'to come late' or 'to be behind.' It was coined in the late 19th century by physicist James Alfred Ewing to describe systems that exhibit a lagging response to changing forces.
In the news
In the article, hysteresis explains how the spring-loaded mechanical units ('hysterons') retain memory. It allows the machine to react differently to force depending on whether it is currently being pushed or pulled, creating a 'memory' of past physical inputs.
Scientists Built a Working Computer Out of Springs That Doesn't Use a Single Watt of Electricity
Read the full article ↗ZME Science