Chemostat

A chemostat is like a special container where bacteria live and grow happily. The container has a big hole that lets out some bacteria and food while new food is added at the same time. This way, the bacteria never run out of food or get too crowded, which can stop them from growing. Scientists use chemostats to study how different things affect bacteria, like how they grow, how quickly they multiply, and how they adapt to different types of food. It's kind of like a special playground for bacteria where scientists can watch them and learn how they work.