An example of simile in popular science writing:
"All the activations I've already described are leading to the proteins in the nucleus, the 'brain' of the cell that coordinates activity. It is the nucleus that defines how the cell will respond, and what is actually going to happen."
Dr Camilla Pang
Pang, C. (2020) Explaining Humans. What science can teach us about life, love and relationships. Viking
Read about examples of science similes