Curious mind

"A person with an inquisitive expression, deeply engrossed in studying a complex scientific diagram on a large chalkboard. Their features are concentrated and focused. They have glasses perched on the bridge of their nose which are slightly slipping down due to the intensity of their investigation. Their hair is slightly disheveled, indicating they have spent considerable time in this activity. Evidence of their curiosity can be shown by several open books lying haphazardly around, and a half-drunk mug of coffee